docs: add architecture diagrams (D2 + Mermaid)

Adds docs/architecture.d2 and docs/architecture.mermaid.md showing the
docker-compose-new.yml service topology — storage, application, init
containers, and external dependencies with annotated connections.

Also includes the rendered docs/architecture.svg (D2 output).

View live: d2 --watch docs/architecture.d2
View in Gitea: navigate to docs/architecture.mermaid.md in the web UI.

.env.example

@@ -1,6 +1,43 @@
 # libnovel scraper — environment overrides
 # Copy to .env and adjust values; do NOT commit this file with real secrets.
 
+# ── Docker BuildKit ───────────────────────────────────────────────────────────
+# Required for the backend/Dockerfile cache mounts (--mount=type=cache).
+# BuildKit is the default in Docker Engine 23+, but Colima users may need this.
+#
+# If you see: "the --mount option requires BuildKit", enable it one of two ways:
+#
+#   Option A — per-project (recommended, zero restart needed):
+#     Uncomment the line below and copy this file to .env.
+#     Docker Compose reads .env automatically, so BuildKit will be active for
+#     every `docker compose build` / `docker compose up --build` in this project.
+#
+#   Option B — system-wide for Colima (persists across restarts):
+#     echo '{"features":{"buildkit":true}}' > ~/.colima/default/daemon.json
+#     colima stop && colima start
+#
+# DOCKER_BUILDKIT=1
+
+# ── Service ports (host-side) ─────────────────────────────────────────────────
+# Port the scraper HTTP API listens on (default 8080)
+SCRAPER_PORT=8080
+
+# Port PocketBase listens on (default 8090)
+POCKETBASE_PORT=8090
+
+# Port MinIO S3 API listens on (default 9000)
+MINIO_PORT=9000
+
+# Port MinIO web console listens on (default 9001)
+MINIO_CONSOLE_PORT=9001
+
+# Port Browserless Chrome listens on (default 3030)
+BROWSERLESS_PORT=3030
+
+# Port the SvelteKit UI listens on (default 3000)
+UI_PORT=3000
+
+# ── Browserless ───────────────────────────────────────────────────────────────
 # Browserless API token (leave empty to disable auth)
 BROWSERLESS_TOKEN=
 
@@ -19,10 +56,7 @@ ERROR_ALERT_URL=
 # Which Browserless strategy the scraper uses: content | scrape | cdp | direct
 BROWSERLESS_STRATEGY=direct
 
-# Strategy for URL retrieval (chapter list). Uses browserless content strategy by default.
-# Set to direct to use plain HTTP, or content/scrape/cdp for browserless.
-BROWSERLESS_URL_STRATEGY=content
-
+# ── Scraper ───────────────────────────────────────────────────────────────────
 # Chapter worker goroutines (0 = NumCPU inside the container)
 SCRAPER_WORKERS=0
 
@@ -39,3 +73,29 @@ KOKORO_URL=http://kokoro:8880
 # Single voices: af_bella, af_sky, af_heart, am_adam, …
 # Mixed voices:  af_bella+af_sky  or  af_bella(2)+af_sky(1)  (weighted blend)
 KOKORO_VOICE=af_bella
+
+# ── MinIO / S3 object storage ─────────────────────────────────────────────────
+MINIO_ROOT_USER=admin
+MINIO_ROOT_PASSWORD=changeme123
+MINIO_BUCKET_CHAPTERS=libnovel-chapters
+MINIO_BUCKET_AUDIO=libnovel-audio
+MINIO_BUCKET_BROWSE=libnovel-browse
+
+# ── PocketBase ────────────────────────────────────────────────────────────────
+# Admin credentials (used by scraper + UI server-side)
+POCKETBASE_ADMIN_EMAIL=admin@libnovel.local
+POCKETBASE_ADMIN_PASSWORD=changeme123
+
+# ── SvelteKit UI ─────────────────────────────────────────────────────────────
+# Internal URL the SvelteKit server uses to reach the scraper API.
+# In docker-compose this is http://scraper:8080 (wired automatically).
+# Override here only if running the UI outside of docker-compose.
+SCRAPER_API_URL=http://localhost:8080
+
+# Internal URL the SvelteKit server uses to reach PocketBase.
+# In docker-compose this is http://pocketbase:8090 (wired automatically).
+POCKETBASE_URL=http://localhost:8090
+
+# Public MinIO URL reachable from the browser (for audio/presigned URLs).
+# In production, point this at your MinIO reverse-proxy or CDN domain.
+PUBLIC_MINIO_PUBLIC_URL=http://localhost:9000

.gitea/workflows/ci-scraper.yaml

@@ -0,0 +1,79 @@
+name: CI / Scraper
+
+on:
+  push:
+    branches: ["main", "master", "v2"]
+    paths:
+      - "scraper/**"
+      - ".gitea/workflows/ci-scraper.yaml"
+  pull_request:
+    branches: ["main", "master", "v2"]
+    paths:
+      - "scraper/**"
+      - ".gitea/workflows/ci-scraper.yaml"
+
+concurrency:
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # ── lint & vet ───────────────────────────────────────────────────────────────
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: scraper/go.mod
+          cache-dependency-path: scraper/go.sum
+
+      - name: go vet
+        working-directory: scraper
+        run: |
+          go vet ./...
+          go vet -tags integration ./...
+
+  # ── tests ────────────────────────────────────────────────────────────────────
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: scraper/go.mod
+          cache-dependency-path: scraper/go.sum
+
+      - name: Run tests
+        working-directory: scraper
+        run: go test -short -race -count=1 -timeout=60s ./...
+
+  # ── push to Docker Hub ───────────────────────────────────────────────────────
+  docker:
+    name: Docker Push
+    runs-on: ubuntu-latest
+    needs: [lint, test]
+    if: gitea.event_name == 'push'
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: scraper
+          push: true
+          tags: |
+            ${{ secrets.DOCKER_USER }}/libnovel-scraper:latest
+            ${{ secrets.DOCKER_USER }}/libnovel-scraper:${{ gitea.sha }}
+          build-args: |
+            VERSION=${{ gitea.sha }}
+            COMMIT=${{ gitea.sha }}

.gitea/workflows/ci-ui.yaml

@@ -0,0 +1,70 @@
+name: CI / UI
+
+on:
+  push:
+    branches: ["main", "master", "v2"]
+    paths:
+      - "ui/**"
+      - ".gitea/workflows/ci-ui.yaml"
+  pull_request:
+    branches: ["main", "master", "v2"]
+    paths:
+      - "ui/**"
+      - ".gitea/workflows/ci-ui.yaml"
+
+concurrency:
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # ── type-check & build ───────────────────────────────────────────────────────
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ui
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+          cache-dependency-path: ui/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run check
+
+      - name: Build
+        run: npm run build
+
+  # ── push to Docker Hub ───────────────────────────────────────────────────────
+  docker:
+    name: Docker Push
+    runs-on: ubuntu-latest
+    needs: build
+    if: gitea.event_name == 'push'
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ui
+          push: true
+          tags: |
+            ${{ secrets.DOCKER_USER }}/libnovel-ui:latest
+            ${{ secrets.DOCKER_USER }}/libnovel-ui:${{ gitea.sha }}
+          build-args: |
+            BUILD_VERSION=${{ gitea.sha }}
+            BUILD_COMMIT=${{ gitea.sha }}

.gitea/workflows/ci.yaml

@@ -1,106 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: ["main", "master"]
-    paths:
-      - "scraper/**"
-      - ".gitea/workflows/**"
-  pull_request:
-    branches: ["main", "master"]
-    paths:
-      - "scraper/**"
-      - ".gitea/workflows/**"
-
-defaults:
-  run:
-    working-directory: scraper
-
-jobs:
-  # ── lint & vet ───────────────────────────────────────────────────────────────
-  lint:
-    name: Lint
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: scraper/go.mod
-          cache-dependency-path: scraper/go.sum
-
-      - name: go vet
-        run: go vet ./...
-
-      - name: staticcheck
-        run: |
-          go install honnef.co/go/tools/cmd/staticcheck@latest
-          staticcheck ./...
-
-  # ── tests ────────────────────────────────────────────────────────────────────
-  test:
-    name: Test
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: scraper/go.mod
-          cache-dependency-path: scraper/go.sum
-
-      - name: Run tests
-        run: go test -race -count=1 -timeout=60s ./...
-
-  # ── build binary ─────────────────────────────────────────────────────────────
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    needs: [lint, test]
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: scraper/go.mod
-          cache-dependency-path: scraper/go.sum
-
-      - name: Build binary
-        run: |
-          CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
-            go build -ldflags="-s -w" -o bin/scraper ./cmd/scraper
-
-      - name: Upload binary artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: scraper-linux-amd64
-          path: scraper/bin/scraper
-          retention-days: 7
-
-  # ── docker build (& push) ────────────────────────────────────────────────────
-  # Uncomment once the runner has Docker available and a registry is configured.
-  #
-  # docker:
-  #   name: Docker
-  #   runs-on: ubuntu-latest
-  #   needs: [lint, test]
-  #   # Only push images on commits to the default branch, not on PRs.
-  #   # if: github.event_name == 'push'
-  #   steps:
-  #     - uses: actions/checkout@v4
-  #
-  #     - name: Log in to Gitea registry
-  #       uses: docker/login-action@v3
-  #       with:
-  #         registry: gitea.kalekber.cc
-  #         username: ${{ secrets.REGISTRY_USER }}
-  #         password: ${{ secrets.REGISTRY_TOKEN }}
-  #
-  #     - name: Build and push
-  #       uses: docker/build-push-action@v5
-  #       with:
-  #         context: ./scraper
-  #         push: true
-  #         tags: |
-  #           gitea.kalekber.cc/kamil/libnovel:latest
-  #           gitea.kalekber.cc/kamil/libnovel:${{ gitea.sha }}

.gitea/workflows/ios.yaml

@@ -0,0 +1,63 @@
+name: iOS CI
+
+on:
+  push:
+    branches: ["v2", "main"]
+    paths:
+      - "ios/**"
+      - "justfile"
+      - ".gitea/workflows/ios.yaml"
+      - ".gitea/workflows/ios-release.yaml"
+  pull_request:
+    branches: ["v2", "main"]
+    paths:
+      - "ios/**"
+      - "justfile"
+      - ".gitea/workflows/ios.yaml"
+      - ".gitea/workflows/ios-release.yaml"
+
+concurrency:
+  group: ios-macos-runner
+  cancel-in-progress: true
+
+jobs:
+  # ── build (simulator) ─────────────────────────────────────────────────────
+  build:
+    name: Build
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install just
+        run: command -v just || brew install just
+
+      - name: Build (simulator)
+        env:
+          USER: runner
+        run: just ios-build
+
+  # ── unit tests ────────────────────────────────────────────────────────────
+  test:
+    name: Test
+    runs-on: macos-latest
+    needs: build
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install just
+        run: command -v just || brew install just
+
+      - name: Run unit tests
+        env:
+          USER: runner
+        run: just ios-test
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results
+          path: ios/LibNovel/test-results.xml
+          retention-days: 7

.gitea/workflows/release-scraper.yaml

@@ -0,0 +1,68 @@
+name: Release / Scraper
+
+on:
+  push:
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # ── lint & test ──────────────────────────────────────────────────────────────
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: scraper/go.mod
+          cache-dependency-path: scraper/go.sum
+
+      - name: go vet
+        working-directory: scraper
+        run: |
+          go vet ./...
+          go vet -tags integration ./...
+
+      - name: Run tests
+        working-directory: scraper
+        run: go test -short -race -count=1 -timeout=60s ./...
+
+  # ── docker build & push ──────────────────────────────────────────────────────
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.DOCKER_USER }}/libnovel-scraper
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: scraper
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VERSION=${{ steps.meta.outputs.version }}
+            COMMIT=${{ gitea.sha }}

.gitea/workflows/release-ui.yaml

@@ -0,0 +1,71 @@
+name: Release / UI
+
+on:
+  push:
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # ── type-check & build ───────────────────────────────────────────────────────
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ui
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+          cache-dependency-path: ui/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run check
+
+      - name: Build
+        run: npm run build
+
+  # ── docker build & push ──────────────────────────────────────────────────────
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    needs: [build]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.DOCKER_USER }}/libnovel-ui
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ui
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            BUILD_VERSION=${{ steps.meta.outputs.version }}
+            BUILD_COMMIT=${{ gitea.sha }}

.gitea/workflows/release-v2.yaml

@@ -0,0 +1,163 @@
+name: Release / v2
+
+on:
+  push:
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # ── backend: lint & test ─────────────────────────────────────────────────────
+  test-backend:
+    name: Test backend
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: backend/go.mod
+          cache-dependency-path: backend/go.sum
+
+      - name: go vet
+        working-directory: backend
+        run: go vet ./...
+
+      - name: Run tests
+        working-directory: backend
+        run: go test -short -race -count=1 -timeout=60s ./...
+
+  # ── ui-v2: type-check & build ────────────────────────────────────────────────
+  build-ui:
+    name: Build ui-v2
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ui-v2
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+          cache-dependency-path: ui-v2/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run check
+
+      - name: Build
+        run: npm run build
+
+  # ── docker: backend ──────────────────────────────────────────────────────────
+  docker-backend:
+    name: Docker / backend
+    runs-on: ubuntu-latest
+    needs: [test-backend]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.DOCKER_USER }}/libnovel-backend
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: backend
+          target: backend
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VERSION=${{ steps.meta.outputs.version }}
+            COMMIT=${{ gitea.sha }}
+
+  # ── docker: runner ───────────────────────────────────────────────────────────
+  docker-runner:
+    name: Docker / runner
+    runs-on: ubuntu-latest
+    needs: [test-backend]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.DOCKER_USER }}/libnovel-runner
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: backend
+          target: runner
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VERSION=${{ steps.meta.outputs.version }}
+            COMMIT=${{ gitea.sha }}
+
+  # ── docker: ui-v2 ────────────────────────────────────────────────────────────
+  docker-ui:
+    name: Docker / ui-v2
+    runs-on: ubuntu-latest
+    needs: [build-ui]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ secrets.DOCKER_USER }}/libnovel-ui-v2
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ui-v2
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            BUILD_VERSION=${{ steps.meta.outputs.version }}
+            BUILD_COMMIT=${{ gitea.sha }}

.gitignore

@@ -6,6 +6,7 @@
 
 # ── Compiled binaries ──────────────────────────────────────────────────────────
 scraper/bin/
+scraper/scraper
 
 # ── Scraped output (large, machine-generated) ──────────────────────────────────
 

.opencode/skills/ios-ux/SKILL.md

@@ -0,0 +1,156 @@
+---
+name: ios-ux
+description: iOS/SwiftUI UI & UX review and implementation guidelines for LibNovel. Enforces Apple HIG, iOS 17+ APIs, spring animations, haptics, accessibility, performance, and offline handling. Load this skill for any iOS view work.
+compatibility: opencode
+---
+
+# iOS UI/UX Skill — LibNovel
+
+Load this skill whenever working on SwiftUI views in `ios/`. It defines design standards, review process for screenshots, and implementation rules.
+
+---
+
+## Screenshot Review Process
+
+When the user provides a screenshot of the app:
+
+1. **Analyze first** — identify specific UI/UX issues across these categories:
+   - Visual hierarchy and spacing
+   - Typography (size, weight, contrast)
+   - Color and material usage
+   - Animation and interactivity gaps
+   - Accessibility problems
+   - Deprecated or non-native patterns
+2. **Present a numbered list** of suggested improvements with brief rationale for each.
+3. **Ask for confirmation** before writing any code: "Should I apply all of these, or only specific ones?"
+4. Apply only what the user confirms.
+
+---
+
+## Design System
+
+### Colors & Materials
+- **Accent**: `Color.amber` (project-defined). Use for active state, selection indicators, progress fills, and CTAs.
+- **Backgrounds**: Prefer `.regularMaterial`, `.ultraThinMaterial`, or `.thinMaterial` over hard-coded `Color.black.opacity(x)` or `Color(.systemBackground)`.
+- **Dark overlays** (e.g. full-screen players): Use `KFImage` blurred background + `Color.black.opacity(0.5–0.6)` overlay. Never use a flat solid black background.
+- **Semantic colors**: Use `.primary`, `.secondary`, `.tertiary` foreground styles. Avoid hard-coded `Color.white` except on dark material contexts (full-screen player).
+- **No hardcoded color literals** — use `Color+App.swift` extensions or system semantic colors.
+
+### Typography
+- Use the SF Pro system font via `.font(.title)`, `.font(.body)`, etc. — never hardcode font names except for intentional stylistic accents (e.g. "Snell Roundhand" for voice watermark).
+- Apply `.fontWeight()` and `.fontDesign()` modifiers rather than custom font families.
+- Support Dynamic Type — never hardcode a fixed font size as the sole option without a `.minimumScaleFactor` or system font size modifier.
+- Hierarchy: title3.bold for primary labels, subheadline for secondary, caption/caption2 for metadata.
+
+### Spacing & Layout
+- Minimum touch target: **44×44 pt**. Use `.frame(minWidth: 44, minHeight: 44)` or `.contentShape(Rectangle())` on small icons.
+- Prefer 16–20 pt horizontal padding on full-width containers; 12 pt for compact inner elements.
+- Use `VStack(spacing:)` and `HStack(spacing:)` explicitly — never rely on default spacing for production UI.
+- Corner radii: 12–14 pt for cards/chips, 10 pt for small badges, 20–24 pt for large cover art.
+
+---
+
+## Animation Rules
+
+### Spring Animations (default for all interactive transitions)
+- Use `.spring(response:dampingFraction:)` for state-driven layout changes, selection feedback, and appear/disappear transitions.
+- Recommended defaults:
+  - Interactive elements: `response: 0.3, dampingFraction: 0.7`
+  - Entrance animations: `response: 0.45–0.5, dampingFraction: 0.7`
+  - Quick snappy feedback: `response: 0.2, dampingFraction: 0.6`
+- Reserve `.easeInOut` only for non-interactive, ambient animations (e.g. opacity pulses, generating overlays).
+
+### SF Symbol Transitions
+- Always use `contentTransition(.symbolEffect(.replace.downUp))` when a symbol name changes based on state (play/pause, checkmark/circle, etc.).
+- Use `.symbolEffect(.variableColor.cumulative)` for continuous animations (waveform, loading indicators).
+- Use `.symbolEffect(.bounce)` for one-shot entrance emphasis (e.g. completion checkmark appearing).
+- Use `.symbolEffect(.pulse)` for error/warning states that need attention.
+
+### Repeating Animations
+- Use `phaseAnimator` for any looping animation that previously used manual `@State` + `withAnimation` chains.
+- Do not use `Timer` publishers for UI animation — prefer `phaseAnimator` or `TimelineView`.
+
+---
+
+## Haptic Feedback
+
+Add `UIImpactFeedbackGenerator` to every user-initiated interactive control:
+- `.light` — toggle switches, selection chips, secondary actions, slider drag start.
+- `.medium` — primary transport buttons (play/pause, chapter skip), significant confirmations.
+- `.heavy` — destructive actions (only if no confirmation dialog).
+
+Pattern:
+```swift
+Button {
+    UIImpactFeedbackGenerator(style: .light).impactOccurred()
+    // action
+} label: { ... }
+```
+
+Do **not** add haptics to:
+- Programmatic state changes not directly triggered by a tap.
+- Buttons inside `List` rows that already use swipe actions.
+- Scroll events.
+
+---
+
+## iOS 17+ API Usage
+
+Flag and replace any of the following deprecated patterns:
+
+| Deprecated | Replace with |
+|---|---|
+| `NavigationView` | `NavigationStack` |
+| `@StateObject` / `ObservableObject` (new types only) | `@Observable` macro |
+| `DispatchQueue.main.async` | `await MainActor.run` or `@MainActor` |
+| Manual `@State` animation chains for repeating loops | `phaseAnimator` |
+| `.animation(_:)` without `value:` | `.animation(_:value:)` |
+| `AnyView` wrapping for conditional content | `@ViewBuilder` + `Group` |
+
+Do **not** refactor existing `ObservableObject` types to `@Observable` unless explicitly asked — only apply `@Observable` to new types.
+
+---
+
+## Accessibility
+
+Every view must:
+- Support VoiceOver: add `.accessibilityLabel()` to icon-only buttons and image views.
+- Support Dynamic Type: test that text doesn't truncate at xxxLarge without a layout adjustment.
+- Meet contrast ratio: text on tinted backgrounds must be legible — avoid `.opacity(0.25)` or lower for any user-readable text.
+- Touch targets ≥ 44pt (see Spacing above).
+- Interactive controls must have `.accessibilityAddTraits(.isButton)` if not using `Button`.
+- Do not rely solely on color to convey state — pair color with icon or label.
+
+---
+
+## Performance
+
+- **Isolate high-frequency observers**: Any view that observes a `PlaybackProgress` (timer-tick updates) must be a separate sub-view that `@ObservedObject`-observes only the progress object — not the parent view. This prevents the entire parent from re-rendering every 0.5 seconds.
+- **Avoid `id()` overuse**: Only use `.id()` to force view recreation when necessary (e.g. background image on track change). Prefer `onChange(of:)` for side effects.
+- **Lazy containers**: Use `LazyVStack` / `LazyHStack` inside `ScrollView` for lists of 20+ items. `List` is inherently lazy and does not need this.
+- **Image loading**: Always use `KFImage` (Kingfisher) with `.placeholder` for remote images. Never use `AsyncImage` for cover art — it has no disk cache.
+- **Avoid `AnyView`**: It breaks structural identity and hurts diffing. Use `@ViewBuilder` or `Group { }` instead.
+
+---
+
+## Offline & Error States
+
+Every view that makes network calls must:
+1. Wrap the body in a `VStack` with `OfflineBanner` at the top, gated on `networkMonitor.isConnected`.
+2. Suppress network errors silently when offline via `ErrorAlertModifier` — do not show an alert when the device is offline.
+3. Gate `.task` / `.onAppear` network calls: `guard networkMonitor.isConnected else { return }`.
+4. Show a non-blocking inline empty state (not a full-screen error) for failed loads when online.
+
+---
+
+## Component Checklist (before submitting any view change)
+
+- [ ] All interactive elements ≥ 44pt touch target
+- [ ] SF Symbol state changes use `contentTransition(.symbolEffect(...))`
+- [ ] State-driven layout transitions use `.spring(response:dampingFraction:)`
+- [ ] Tappable controls have haptic feedback
+- [ ] No `NavigationView`, no `DispatchQueue.main.async`, no `.animation(_:)` without `value:`
+- [ ] High-frequency observers are isolated sub-views
+- [ ] Offline state handled with `OfflineBanner` + `NetworkMonitor`
+- [ ] VoiceOver labels on icon-only buttons
+- [ ] No hardcoded `Color.black` / `Color.white` / `Color(.systemBackground)` where a material applies

AGENTS.md

@@ -1,28 +1,43 @@
 # libnovel Project
 
-Go web scraper for novelfire.net with TTS support via Kokoro-FastAPI.
+Go web scraper for novelfire.net with TTS support via Kokoro-FastAPI. Structured data in PocketBase, binary blobs (chapters, audio, browse snapshots) in MinIO. SvelteKit frontend.
 
 ## Architecture
 
 ```
 scraper/
-├── cmd/scraper/main.go           # Entry point: 'run' (one-shot) and 'serve' (HTTP server)
+├── cmd/scraper/main.go               # Entry point: run | refresh | serve | save-browse
 ├── internal/
-│   ├── orchestrator/orchestrator.go  # Coordinates catalogue walk, metadata extraction, chapter scraping
-│   ├── browser/                       # Browser client (content/scrape/cdp strategies) via Browserless
-│   ├── novelfire/scraper.go          # novelfire.net specific scraping logic
-│   ├── server/server.go              # HTTP API (POST /scrape, POST /scrape/book)
-│   ├── writer/writer.go              # File writer (metadata.yaml, chapter .md files)
-│   └── scraper/interfaces.go         # NovelScraper interface definition
-└── static/books/                     # Output directory for scraped content
+│   ├── orchestrator/orchestrator.go  # Catalogue walk → per-book metadata goroutines → chapter worker pool
+│   ├── browser/                      # BrowserClient interface + direct HTTP (production) + Browserless variants
+│   ├── novelfire/scraper.go          # novelfire.net scraping (catalogue, metadata, chapters, ranking)
+│   ├── server/                       # HTTP API server (server.go + 6 handler files)
+│   │   ├── server.go                 # Server struct, route registration, ListenAndServe
+│   │   ├── handlers_scrape.go        # POST /scrape, /scrape/book, /scrape/book/range; job status/tasks
+│   │   ├── handlers_browse.go        # GET /api/browse, /api/search, /api/cover — MinIO-cached browse pages
+│   │   ├── handlers_preview.go       # GET /api/book-preview, /api/chapter-text-preview — live scrape, no store writes
+│   │   ├── handlers_audio.go         # POST /api/audio, GET /api/audio-proxy, voice samples, presign
+│   │   ├── handlers_progress.go      # GET/POST/DELETE /api/progress
+│   │   ├── handlers_ranking.go       # GET /api/ranking, /api/cover
+│   │   └── helpers.go                # stripMarkdown, hardcoded voice list fallback
+│   ├── storage/                      # Persistence layer (PocketBase + MinIO)
+│   │   ├── store.go                  # Store interface — single abstraction for server + orchestrator
+│   │   ├── hybrid.go                 # HybridStore: routes structured data → PocketBase, blobs → MinIO
+│   │   ├── pocketbase.go             # PocketBase REST admin client (7 collections, auth, schema bootstrap)
+│   │   ├── minio.go                  # MinIO client (3 buckets: chapters, audio, browse)
+│   │   └── coverutil.go              # Best-effort cover image downloader → browse bucket
+│   └── scraper/
+│       ├── interfaces.go             # NovelScraper interface + domain types (BookMeta, ChapterRef, etc.)
+│       └── htmlutil/htmlutil.go      # HTML parsing helpers (NodeToMarkdown, ResolveURL, etc.)
 ```
 
 ## Key Concepts
 
-- **Orchestrator**: Manages concurrency - catalogue streaming → per-book metadata goroutines → chapter worker pool
-- **Browser Client**: 3 strategies (content/scrape/cdp) via Browserless Chrome container
-- **Writer**: Writes metadata.yaml and chapter markdown files to `static/books/{slug}/vol-0/1-50/`
-- **Server**: HTTP API with async scrape jobs, UI for browsing books/chapters, chapter-text endpoint for TTS
+- **Orchestrator**: Catalogue stream → per-book goroutines (metadata + chapter list) → shared chapter work channel → N worker goroutines (chapter text). Scrape jobs tracked in PocketBase `scraping_tasks`.
+- **Storage**: `HybridStore` implements the `Store` interface. PocketBase holds structured records (`books`, `chapters_idx`, `ranking`, `progress`, `audio_cache`, `app_users`, `scraping_tasks`). MinIO holds blobs (chapter markdown, audio MP3s, browse HTML snapshots, cover images).
+- **Browser Client**: Production uses `NewDirectHTTPClient` (plain HTTP, no Browserless). Browserless variants (content/scrape/cdp) exist in `browser/` but are only wired for the `save-browse` subcommand.
+- **Preview**: `GET /api/book-preview/{slug}` scrapes metadata + chapter list live without persisting anything — used when a book is not yet in the library. On first visit, metadata and chapter index are auto-saved to PocketBase in the background.
+- **Server**: 24 HTTP endpoints. Async scrape jobs (mutex, 409 on concurrent), in-flight dedup for audio generation, MinIO-backed browse page cache with mem-cache fallback.
 
 ## Commands
 
@@ -30,60 +45,138 @@ scraper/
 # Build
 cd scraper && go build -o bin/scraper ./cmd/scraper
 
-# One-shot scrape (full catalogue)
+# Full catalogue scrape (one-shot)
 ./bin/scraper run
 
 # Single book
 ./bin/scraper run --url https://novelfire.net/book/xxx
 
+# Re-scrape a book already in the DB (uses stored source_url)
+./bin/scraper refresh <slug>
+
 # HTTP server
 ./bin/scraper serve
 
-# Tests
+# Capture browse pages to MinIO via SingleFile CLI (requires SINGLEFILE_PATH + BROWSERLESS_URL)
+./bin/scraper save-browse
+
+# Tests (unit only — integration tests require live services)
+cd scraper && go test ./... -short
+
+# All tests (requires MinIO + PocketBase + Browserless)
 cd scraper && go test ./...
 ```
 
 ## Environment Variables
 
+### Scraper (Go)
+
 | Variable | Description | Default |
 |----------|-------------|---------|
-| BROWSERLESS_URL | Browserless Chrome endpoint | http://localhost:3030 |
-| BROWSERLESS_STRATEGY | content \| scrape \| cdp | content |
-| SCRAPER_WORKERS | Chapter goroutines | NumCPU |
-| SCRAPER_STATIC_ROOT | Output directory | ./static/books |
-| SCRAPER_HTTP_ADDR | HTTP listen address | :8080 |
-| KOKORO_URL | Kokoro TTS endpoint | http://localhost:8880 |
-| KOKORO_VOICE | Default TTS voice | af_bella |
-| LOG_LEVEL | debug \| info \| warn \| error | info |
+| `LOG_LEVEL` | `debug\|info\|warn\|error` | `info` |
+| `SCRAPER_HTTP_ADDR` | HTTP listen address | `:8080` |
+| `SCRAPER_WORKERS` | Chapter goroutines | `NumCPU` |
+| `SCRAPER_TIMEOUT` | Per-request HTTP timeout (seconds) | `90` |
+| `KOKORO_URL` | Kokoro-FastAPI TTS base URL | `https://kokoro.kalekber.cc` |
+| `KOKORO_VOICE` | Default TTS voice | `af_bella` |
+| `MINIO_ENDPOINT` | MinIO S3 API host:port | `localhost:9000` |
+| `MINIO_PUBLIC_ENDPOINT` | Public MinIO endpoint for presigned URLs | `""` |
+| `MINIO_ACCESS_KEY` | MinIO access key | `admin` |
+| `MINIO_SECRET_KEY` | MinIO secret key | `changeme123` |
+| `MINIO_USE_SSL` | TLS for internal MinIO connection | `false` |
+| `MINIO_PUBLIC_USE_SSL` | TLS for public presigned URL endpoint | `true` |
+| `MINIO_BUCKET_CHAPTERS` | Chapter markdown bucket | `libnovel-chapters` |
+| `MINIO_BUCKET_AUDIO` | Audio MP3 bucket | `libnovel-audio` |
+| `MINIO_BUCKET_BROWSE` | Browse HTML + cover image bucket | `libnovel-browse` |
+| `POCKETBASE_URL` | PocketBase base URL | `http://localhost:8090` |
+| `POCKETBASE_ADMIN_EMAIL` | PocketBase admin email | `admin@libnovel.local` |
+| `POCKETBASE_ADMIN_PASSWORD` | PocketBase admin password | `changeme123` |
+| `BROWSERLESS_URL` | Browserless WS endpoint (save-browse only) | `http://localhost:3030` |
+| `SINGLEFILE_PATH` | SingleFile CLI binary path (save-browse only) | `single-file` |
+
+### UI (SvelteKit)
+
+| Variable | Description | Default |
+|----------|-------------|---------|
+| `AUTH_SECRET` | HMAC signing secret for auth tokens | `dev_secret_change_in_production` |
+| `SCRAPER_API_URL` | Internal URL of the Go scraper | `http://localhost:8080` |
+| `POCKETBASE_URL` | PocketBase base URL | `http://localhost:8090` |
+| `POCKETBASE_ADMIN_EMAIL` | PocketBase admin email | `admin@libnovel.local` |
+| `POCKETBASE_ADMIN_PASSWORD` | PocketBase admin password | `changeme123` |
+| `PUBLIC_MINIO_PUBLIC_URL` | Browser-visible MinIO URL (presigned links) | `http://localhost:9000` |
 
 ## Docker
 
 ```bash
-docker-compose up -d  # Starts browserless, kokoro, scraper
+docker-compose up -d  # Starts: minio, minio-init, pocketbase, pb-init, scraper, ui
 ```
 
+Services:
+
+| Service | Port(s) | Role |
+|---------|---------|------|
+| `minio` | `9000` (S3 API), `9001` (console) | Object storage |
+| `minio-init` | — | One-shot bucket creation then exits |
+| `pocketbase` | `8090` | Structured data store |
+| `pb-init` | — | One-shot PocketBase collection bootstrap then exits |
+| `scraper` | `8080` | Go scraper HTTP API |
+| `ui` | `5252` → internal `3000` | SvelteKit frontend |
+
+Kokoro and Browserless are **external services** — not in docker-compose.
+
+## HTTP API Endpoints (Go scraper)
+
+| Method | Path | Description |
+|--------|------|-------------|
+| `GET` | `/health` | Liveness probe |
+| `POST` | `/scrape` | Enqueue full catalogue scrape |
+| `POST` | `/scrape/book` | Enqueue single-book scrape `{url}` |
+| `POST` | `/scrape/book/range` | Enqueue range scrape `{url, from, to?}` |
+| `GET` | `/api/scrape/status` | Current scrape job status |
+| `GET` | `/api/scrape/tasks` | All scrape task records |
+| `GET` | `/api/browse` | Browse novelfire catalogue (MinIO-cached) |
+| `GET` | `/api/search` | Search local + remote `?q=` |
+| `GET` | `/api/ranking` | Ranking list |
+| `GET` | `/api/cover/{domain}/{slug}` | Proxy cover image from MinIO |
+| `GET` | `/api/book-preview/{slug}` | Live metadata + chapter list (no store write) |
+| `GET` | `/api/chapter-text-preview/{slug}/{n}` | Live chapter text (no store write) |
+| `POST` | `/api/reindex/{slug}` | Rebuild chapters_idx from MinIO |
+| `GET` | `/api/chapter-text/{slug}/{n}` | Chapter text (markdown stripped) |
+| `POST` | `/api/audio/{slug}/{n}` | Trigger Kokoro TTS generation |
+| `GET` | `/api/audio-proxy/{slug}/{n}` | Proxy generated audio |
+| `POST` | `/api/audio/voice-samples` | Pre-generate voice samples |
+| `GET` | `/api/voices` | List available Kokoro voices |
+| `GET` | `/api/presign/chapter/{slug}/{n}` | Presigned MinIO URL for chapter |
+| `GET` | `/api/presign/audio/{slug}/{n}` | Presigned MinIO URL for audio |
+| `GET` | `/api/presign/voice-sample/{voice}` | Presigned MinIO URL for voice sample |
+| `GET` | `/api/progress` | Get reading progress (session-scoped) |
+| `POST` | `/api/progress/{slug}` | Set reading progress |
+| `DELETE` | `/api/progress/{slug}` | Delete reading progress |
+
 ## Code Patterns
 
-- Uses `log/slog` for structured logging
-- Context-based cancellation throughout
-- Worker pool pattern in orchestrator (channel + goroutines)
-- Mutex for single async job (409 on concurrent scrape requests)
+- `log/slog` for structured logging throughout
+- Context-based cancellation on all network calls and goroutines
+- Worker pool pattern in orchestrator (buffered channel + WaitGroup)
+- Single async scrape job enforced by mutex; 409 on concurrent requests; job state persisted to `scraping_tasks` in PocketBase
+- `Store` interface decouples all persistence — pass it around, never touch MinIO/PocketBase clients directly outside `storage/`
+- Auth: custom HMAC-signed token (`userId:username:role.<sig>`) in `libnovel_auth` cookie; signed with `AUTH_SECRET`
 
 ## AI Context Tips
 
-- Primary files to modify: `orchestrator.go`, `server.go`, `scraper.go`, `browser/*.go`
-- To add new source: implement `NovelScraper` interface from `internal/scraper/interfaces.go`
-- Skip `static/` directory - generated content, not source
+- **Primary files to modify**: `orchestrator.go`, `server/handlers_*.go`, `novelfire/scraper.go`, `storage/hybrid.go`, `storage/pocketbase.go`
+- **To add a new scrape source**: implement `NovelScraper` from `internal/scraper/interfaces.go`
+- **To add a new API endpoint**: add handler in the appropriate `handlers_*.go` file, register in `server.go` `ListenAndServe()`
+- **Storage changes**: update `Store` interface in `store.go`, implement on `HybridStore` (hybrid.go) and `PocketBaseStore`/`MinioClient` as needed; update mock in `orchestrator_test.go`
+- **Skip**: `scraper/bin/` (compiled binary), MinIO/PocketBase data volumes
 
-## Speed Up AI Sessions (Optional)
+## iOS App
 
-For faster AI context loading, use **Context7** (free, local indexing):
+See `ios/AGENTS.md` for full iOS/SwiftUI conventions.
 
-```bash
-# Install and index once
-npx @context7/cli@latest index --path . --ignore .aiignore
+## Documentation Tools
 
-# After first run, AI tools will query the index instead of re-scanning files
-```
+This project has two MCP-backed documentation tools available. Use them proactively:
 
-VSCode extension: https://marketplace.visualstudio.com/items?itemName=context7.context7
+- **`context7`** — Live Apple SwiftUI/Swift docs, Go stdlib, SvelteKit, and any other library docs. Use before implementing anything non-trivial in Swift/SwiftUI. Example: `use context7 to look up NavigationStack`.
+- **`gh_grep`** — Search real-world code on GitHub for implementation patterns. Example: `use gh_grep to find examples of background URLSession in Swift`.

backend/.dockerignore

@@ -0,0 +1,13 @@
+# Exclude compiled binaries
+bin/
+
+# Exclude test binaries produced by `go test -c`
+*.test
+
+# Git history is not needed inside the image
+.git/
+
+# Editor/OS noise
+.DS_Store
+*.swp
+*.swo

backend/Dockerfile

@@ -0,0 +1,42 @@
+# syntax=docker/dockerfile:1
+FROM golang:1.26.1-alpine AS builder
+WORKDIR /app
+
+# Download modules into the BuildKit cache so they survive across builds.
+# This layer is only invalidated when go.mod or go.sum changes.
+COPY go.mod go.sum ./
+RUN --mount=type=cache,target=/root/go/pkg/mod \
+    go mod download
+
+COPY . .
+
+ARG VERSION=dev
+ARG COMMIT=unknown
+
+# Build all three binaries in a single layer so the Go compiler can reuse
+# intermediate object files.  Both cache mounts are preserved between builds:
+#   /root/go/pkg/mod   — downloaded module source
+#   /root/.cache/go-build — compiled package objects (incremental recompile)
+RUN --mount=type=cache,target=/root/go/pkg/mod \
+    --mount=type=cache,target=/root/.cache/go-build \
+    CGO_ENABLED=0 GOOS=linux go build \
+      -ldflags="-s -w -X main.version=${VERSION} -X main.commit=${COMMIT}" \
+      -o /out/backend ./cmd/backend && \
+    CGO_ENABLED=0 GOOS=linux go build \
+      -ldflags="-s -w -X main.version=${VERSION} -X main.commit=${COMMIT}" \
+      -o /out/runner ./cmd/runner && \
+    CGO_ENABLED=0 GOOS=linux go build \
+      -ldflags="-s -w" \
+      -o /out/healthcheck ./cmd/healthcheck
+
+# ── backend service ──────────────────────────────────────────────────────────
+FROM gcr.io/distroless/static:nonroot AS backend
+COPY --from=builder /out/healthcheck /healthcheck
+COPY --from=builder /out/backend /backend
+ENTRYPOINT ["/backend"]
+
+# ── runner service ───────────────────────────────────────────────────────────
+FROM gcr.io/distroless/static:nonroot AS runner
+COPY --from=builder /out/healthcheck /healthcheck
+COPY --from=builder /out/runner /runner
+ENTRYPOINT ["/runner"]

backend/cmd/backend/main.go

@@ -0,0 +1,126 @@
+// Command backend is the LibNovel HTTP API server.
+//
+// It exposes all endpoints consumed by the SvelteKit UI: book/chapter reads,
+// scrape-task creation, presigned MinIO URLs, audio-task creation, reading
+// progress, live novelfire.net browse/search, and Kokoro voice list.
+//
+// All heavy lifting (scraping, TTS generation) is delegated to the runner
+// binary via PocketBase task records. The backend never scrapes directly.
+//
+// Usage:
+//
+//	backend          # start HTTP server (blocks until SIGINT/SIGTERM)
+package main
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/libnovel/backend/internal/backend"
+	"github.com/libnovel/backend/internal/config"
+	"github.com/libnovel/backend/internal/kokoro"
+	"github.com/libnovel/backend/internal/storage"
+)
+
+// version and commit are set at build time via -ldflags.
+var (
+	version = "dev"
+	commit  = "unknown"
+)
+
+func main() {
+	if err := run(); err != nil {
+		fmt.Fprintf(os.Stderr, "backend: fatal: %v\n", err)
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	cfg := config.Load()
+
+	// ── Logger ───────────────────────────────────────────────────────────────
+	log := buildLogger(cfg.LogLevel)
+	log.Info("backend starting",
+		"version", version,
+		"commit", commit,
+		"addr", cfg.HTTP.Addr,
+	)
+
+	// ── Context: cancel on SIGINT / SIGTERM ──────────────────────────────────
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	// ── Storage ──────────────────────────────────────────────────────────────
+	store, err := storage.NewStore(ctx, cfg, log)
+	if err != nil {
+		return fmt.Errorf("init storage: %w", err)
+	}
+
+	// ── Kokoro (voice list only; audio generation is done by the runner) ─────
+	var kokoroClient kokoro.Client
+	if cfg.Kokoro.URL != "" {
+		kokoroClient = kokoro.New(cfg.Kokoro.URL)
+		log.Info("kokoro voices enabled", "url", cfg.Kokoro.URL)
+	} else {
+		log.Info("KOKORO_URL not set — voice list will use built-in fallback")
+		kokoroClient = &noopKokoro{}
+	}
+
+	// ── Backend server ───────────────────────────────────────────────────────
+	srv := backend.New(
+		backend.Config{
+			Addr:         cfg.HTTP.Addr,
+			DefaultVoice: cfg.Kokoro.DefaultVoice,
+			Version:      version,
+			Commit:       commit,
+		},
+		backend.Dependencies{
+			BookReader:    store,
+			RankingStore:  store,
+			AudioStore:    store,
+			PresignStore:  store,
+			ProgressStore: store,
+			BrowseStore:   store,
+			Producer:      store,
+			TaskReader:    store,
+			Kokoro:        kokoroClient,
+			Log:           log,
+		},
+	)
+
+	return srv.ListenAndServe(ctx)
+}
+
+// ── Helpers ───────────────────────────────────────────────────────────────────
+
+func buildLogger(level string) *slog.Logger {
+	var lvl slog.Level
+	switch level {
+	case "debug":
+		lvl = slog.LevelDebug
+	case "warn":
+		lvl = slog.LevelWarn
+	case "error":
+		lvl = slog.LevelError
+	default:
+		lvl = slog.LevelInfo
+	}
+	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: lvl}))
+}
+
+// noopKokoro is a no-op implementation used when KOKORO_URL is not set.
+// The backend only uses Kokoro for the voice list; audio generation is the
+// runner's responsibility. With no URL the built-in fallback list is served.
+type noopKokoro struct{}
+
+func (n *noopKokoro) GenerateAudio(_ context.Context, _, _ string) ([]byte, error) {
+	return nil, fmt.Errorf("kokoro not configured (KOKORO_URL is empty)")
+}
+
+func (n *noopKokoro) ListVoices(_ context.Context) ([]string, error) {
+	return nil, nil
+}

backend/cmd/backend/main_test.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+// TestBuildLogger verifies that buildLogger returns a non-nil logger for each
+// supported log level string and for unknown values.
+func TestBuildLogger(t *testing.T) {
+	for _, level := range []string{"debug", "info", "warn", "error", "unknown", ""} {
+		l := buildLogger(level)
+		if l == nil {
+			t.Errorf("buildLogger(%q) returned nil", level)
+		}
+	}
+}
+
+// TestNoopKokoro verifies that the no-op Kokoro stub returns the expected
+// sentinel error from GenerateAudio and nil, nil from ListVoices.
+func TestNoopKokoro(t *testing.T) {
+	noop := &noopKokoro{}
+
+	_, err := noop.GenerateAudio(t.Context(), "text", "af_bella")
+	if err == nil {
+		t.Fatal("noopKokoro.GenerateAudio: expected error, got nil")
+	}
+
+	voices, err := noop.ListVoices(t.Context())
+	if err != nil {
+		t.Fatalf("noopKokoro.ListVoices: unexpected error: %v", err)
+	}
+	if voices != nil {
+		t.Fatalf("noopKokoro.ListVoices: expected nil slice, got %v", voices)
+	}
+}
+
+// TestRunStorageUnreachable verifies that run() fails fast and returns a
+// descriptive error when PocketBase is unreachable.
+func TestRunStorageUnreachable(t *testing.T) {
+	// Point at an address nothing is listening on.
+	t.Setenv("POCKETBASE_URL", "http://127.0.0.1:19999")
+	// Use a fast listen address so we don't accidentally start a real server.
+	t.Setenv("BACKEND_HTTP_ADDR", "127.0.0.1:0")
+
+	err := run()
+	if err == nil {
+		t.Fatal("run() should have returned an error when storage is unreachable")
+	}
+
+	t.Logf("got expected error: %v", err)
+}
+
+// TestMain runs the test suite. No special setup required.
+func TestMain(m *testing.M) {
+	os.Exit(m.Run())
+}

backend/cmd/healthcheck/main.go

@@ -0,0 +1,89 @@
+// healthcheck is a static binary used by Docker HEALTHCHECK CMD in distroless
+// images (which have no shell, wget, or curl).
+//
+// Two modes:
+//
+//  1. HTTP mode (default):
+//     /healthcheck <url>
+//     Performs GET <url>; exits 0 if HTTP 2xx/3xx, 1 otherwise.
+//     Example: /healthcheck http://localhost:8080/health
+//
+//  2. File-liveness mode:
+//     /healthcheck file <path> <max_age_seconds>
+//     Reads <path>, parses its content as RFC3339 timestamp, and exits 1 if the
+//     timestamp is older than <max_age_seconds>. Used by the runner service which
+//     writes /tmp/runner.alive on every successful poll.
+//     Example: /healthcheck file /tmp/runner.alive 120
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+)
+
+func main() {
+	if len(os.Args) > 1 && os.Args[1] == "file" {
+		checkFile()
+		return
+	}
+	checkHTTP()
+}
+
+// checkHTTP performs a GET request and exits 0 on success, 1 on failure.
+func checkHTTP() {
+	url := "http://localhost:8080/health"
+	if len(os.Args) > 1 {
+		url = os.Args[1]
+	}
+	resp, err := http.Get(url) //nolint:gosec,noctx
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "healthcheck: %v\n", err)
+		os.Exit(1)
+	}
+	resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		fmt.Fprintf(os.Stderr, "healthcheck: status %d\n", resp.StatusCode)
+		os.Exit(1)
+	}
+}
+
+// checkFile reads a timestamp from a file and exits 1 if it is older than the
+// given max age. Usage: /healthcheck file <path> <max_age_seconds>
+func checkFile() {
+	if len(os.Args) < 4 {
+		fmt.Fprintln(os.Stderr, "healthcheck file: usage: /healthcheck file <path> <max_age_seconds>")
+		os.Exit(1)
+	}
+	path := os.Args[2]
+	maxAgeSec, err := strconv.ParseInt(os.Args[3], 10, 64)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "healthcheck file: invalid max_age_seconds %q: %v\n", os.Args[3], err)
+		os.Exit(1)
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "healthcheck file: cannot read %s: %v\n", path, err)
+		os.Exit(1)
+	}
+
+	ts, err := time.Parse(time.RFC3339, string(data))
+	if err != nil {
+		// Fallback: use file mtime if content is not a valid timestamp.
+		info, statErr := os.Stat(path)
+		if statErr != nil {
+			fmt.Fprintf(os.Stderr, "healthcheck file: cannot stat %s: %v\n", path, statErr)
+			os.Exit(1)
+		}
+		ts = info.ModTime()
+	}
+
+	age := time.Since(ts)
+	if age > time.Duration(maxAgeSec)*time.Second {
+		fmt.Fprintf(os.Stderr, "healthcheck file: %s is %.0fs old (max %ds)\n", path, age.Seconds(), maxAgeSec)
+		os.Exit(1)
+	}
+}

backend/cmd/runner/main.go

@@ -0,0 +1,140 @@
+// Command runner is the homelab worker binary.
+//
+// It polls PocketBase for pending scrape and audio tasks, executes them, and
+// writes results back. It connects directly to PocketBase and MinIO using
+// admin credentials loaded from environment variables.
+//
+// Usage:
+//
+//	runner          # start polling loop (blocks until SIGINT/SIGTERM)
+package main
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"os/signal"
+	"runtime"
+	"syscall"
+	"time"
+
+	"github.com/libnovel/backend/internal/browser"
+	"github.com/libnovel/backend/internal/config"
+	"github.com/libnovel/backend/internal/kokoro"
+	"github.com/libnovel/backend/internal/novelfire"
+	"github.com/libnovel/backend/internal/runner"
+	"github.com/libnovel/backend/internal/storage"
+)
+
+// version and commit are set at build time via -ldflags.
+var (
+	version = "dev"
+	commit  = "unknown"
+)
+
+func main() {
+	if err := run(); err != nil {
+		fmt.Fprintf(os.Stderr, "runner: fatal: %v\n", err)
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	cfg := config.Load()
+
+	// ── Logger ──────────────────────────────────────────────────────────────
+	log := buildLogger(cfg.LogLevel)
+	log.Info("runner starting",
+		"version", version,
+		"commit", commit,
+		"worker_id", cfg.Runner.WorkerID,
+	)
+
+	// ── Context: cancel on SIGINT / SIGTERM ─────────────────────────────────
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	// ── Storage ─────────────────────────────────────────────────────────────
+	store, err := storage.NewStore(ctx, cfg, log)
+	if err != nil {
+		return fmt.Errorf("init storage: %w", err)
+	}
+
+	// ── Browser / Scraper ───────────────────────────────────────────────────
+	workers := cfg.Runner.Workers
+	if workers <= 0 {
+		workers = runtime.NumCPU()
+	}
+	timeout := cfg.Runner.Timeout
+	if timeout <= 0 {
+		timeout = 90 * time.Second
+	}
+
+	browserClient := browser.NewDirectClient(browser.Config{
+		MaxConcurrent: workers,
+		Timeout:       timeout,
+		ProxyURL:      cfg.Runner.ProxyURL,
+	})
+	novel := novelfire.New(browserClient, log)
+
+	// ── Kokoro ──────────────────────────────────────────────────────────────
+	var kokoroClient kokoro.Client
+	if cfg.Kokoro.URL != "" {
+		kokoroClient = kokoro.New(cfg.Kokoro.URL)
+		log.Info("kokoro TTS enabled", "url", cfg.Kokoro.URL)
+	} else {
+		log.Warn("KOKORO_URL not set — audio tasks will fail")
+		kokoroClient = &noopKokoro{}
+	}
+
+	// ── Runner ──────────────────────────────────────────────────────────────
+	rCfg := runner.Config{
+		WorkerID:            cfg.Runner.WorkerID,
+		PollInterval:        cfg.Runner.PollInterval,
+		MaxConcurrentScrape: cfg.Runner.MaxConcurrentScrape,
+		MaxConcurrentAudio:  cfg.Runner.MaxConcurrentAudio,
+		OrchestratorWorkers: workers,
+	}
+	deps := runner.Dependencies{
+		Consumer:    store,
+		BookWriter:  store,
+		BookReader:  store,
+		AudioStore:  store,
+		BrowseStore: store,
+		Novel:       novel,
+		Kokoro:      kokoroClient,
+		Log:         log,
+	}
+	r := runner.New(rCfg, deps)
+
+	return r.Run(ctx)
+}
+
+// ── Helpers ───────────────────────────────────────────────────────────────────
+
+func buildLogger(level string) *slog.Logger {
+	var lvl slog.Level
+	switch level {
+	case "debug":
+		lvl = slog.LevelDebug
+	case "warn":
+		lvl = slog.LevelWarn
+	case "error":
+		lvl = slog.LevelError
+	default:
+		lvl = slog.LevelInfo
+	}
+	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: lvl}))
+}
+
+// noopKokoro is a no-op implementation used when KOKORO_URL is not set.
+type noopKokoro struct{}
+
+func (n *noopKokoro) GenerateAudio(_ context.Context, _, _ string) ([]byte, error) {
+	return nil, fmt.Errorf("kokoro not configured (KOKORO_URL is empty)")
+}
+
+func (n *noopKokoro) ListVoices(_ context.Context) ([]string, error) {
+	return nil, nil
+}

backend/go.mod

@@ -0,0 +1,29 @@
+module github.com/libnovel/backend
+
+go 1.26.1
+
+require (
+	github.com/minio/minio-go/v7 v7.0.98
+	golang.org/x/net v0.51.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-ini/ini v1.67.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/klauspost/compress v1.18.2 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.11 // indirect
+	github.com/klauspost/crc32 v1.3.0 // indirect
+	github.com/minio/crc64nvme v1.1.1 // indirect
+	github.com/minio/md5-simd v1.1.2 // indirect
+	github.com/philhofer/fwd v1.2.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rs/xid v1.6.0 // indirect
+	github.com/tinylib/msgp v1.6.1 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/text v0.34.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

backend/go.sum

@@ -0,0 +1,45 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=
+github.com/go-ini/ini v1.67.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/klauspost/compress v1.18.2 h1:iiPHWW0YrcFgpBYhsA6D1+fqHssJscY/Tm/y2Uqnapk=
+github.com/klauspost/compress v1.18.2/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
+github.com/klauspost/cpuid/v2 v2.0.1/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
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+github.com/klauspost/crc32 v1.3.0 h1:sSmTt3gUt81RP655XGZPElI0PelVTZ6YwCRnPSupoFM=
+github.com/klauspost/crc32 v1.3.0/go.mod h1:D7kQaZhnkX/Y0tstFGf8VUzv2UofNGqCjnC3zdHB0Hw=
+github.com/minio/crc64nvme v1.1.1 h1:8dwx/Pz49suywbO+auHCBpCtlW1OfpcLN7wYgVR6wAI=
+github.com/minio/crc64nvme v1.1.1/go.mod h1:eVfm2fAzLlxMdUGc0EEBGSMmPwmXD5XiNRpnu9J3bvg=
+github.com/minio/md5-simd v1.1.2 h1:Gdi1DZK69+ZVMoNHRXJyNcxrMA4dSxoYHZSQbirFg34=
+github.com/minio/md5-simd v1.1.2/go.mod h1:MzdKDxYpY2BT9XQFocsiZf/NKVtR7nkE4RoEpN+20RM=
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+github.com/philhofer/fwd v1.2.0 h1:e6DnBTl7vGY+Gz322/ASL4Gyp1FspeMvx1RNDoToZuM=
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+github.com/rs/xid v1.6.0 h1:fV591PaemRlL6JfRxGDEPl69wICngIQ3shQtzfy2gxU=
+github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
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+github.com/tinylib/msgp v1.6.1 h1:ESRv8eL3u+DNHUoSAAQRE50Hm162zqAnBoGv9PzScPY=
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+go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
+golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
+golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
+golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo=
+golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
+golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

backend/internal/backend/handlers.go

@@ -0,0 +1,958 @@
+package backend
+
+// handlers.go — all HTTP request handlers for the backend server.
+//
+// Handler naming mirrors the route table in server.go:
+//   handleScrapeCatalogue, handleScrapeBook, handleScrapeBookRange
+//   handleScrapeStatus, handleScrapeTasks
+//   handleBrowse, handleSearch
+//   handleGetRanking, handleGetCover
+//   handleBookPreview, handleChapterText, handleReindex
+//   handleChapterText, handleReindex
+//   handleAudioGenerate, handleAudioStatus, handleAudioProxy
+//   handleVoices
+//   handlePresignChapter, handlePresignAudio, handlePresignVoiceSample
+//   handlePresignAvatarUpload, handlePresignAvatar
+//   handleGetProgress, handleSetProgress, handleDeleteProgress
+//
+// Key design choices vs. old scraper:
+//   - POST /scrape* creates a PocketBase task record and returns 202 with the
+//     task_id — it does NOT run the orchestrator inline.
+//   - POST /api/audio creates a PocketBase audio task and returns 202 — the
+//     runner binary executes TTS generation asynchronously.
+//   - GET /api/audio/status polls PocketBase for the task record status.
+//   - GET /api/audio-proxy reads the completed audio object from MinIO via a
+//     presigned URL redirect (the runner has already uploaded the bytes).
+//   - GET /api/browse and /api/search fetch novelfire.net live (no MinIO cache).
+//   - GET /api/cover redirects to the source cover URL live.
+//   - GET /api/ranking reads from the PocketBase ranking collection (populated
+//     by the runner after each catalogue scrape).
+//   - GET /api/book-preview returns stored data when in library, or enqueues a
+//     scrape task and returns 202 when not. The backend never scrapes directly.
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/kokoro"
+)
+
+const (
+	novelFireBase   = "https://novelfire.net"
+	novelFireDomain = "novelfire.net"
+)
+
+// ── Scrape task creation ───────────────────────────────────────────────────────
+
+// handleScrapeCatalogue handles POST /scrape.
+// Creates a "catalogue" scrape task in PocketBase and returns 202 with the task ID.
+func (s *Server) handleScrapeCatalogue(w http.ResponseWriter, r *http.Request) {
+	taskID, err := s.deps.Producer.CreateScrapeTask(r.Context(), "catalogue", "", 0, 0)
+	if err != nil {
+		s.deps.Log.Error("handleScrapeCatalogue: CreateScrapeTask failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to create task")
+		return
+	}
+	writeJSON(w, http.StatusAccepted, map[string]string{"task_id": taskID, "status": "accepted"})
+}
+
+// handleScrapeBook handles POST /scrape/book.
+// Body: {"url": "https://novelfire.net/book/..."}
+func (s *Server) handleScrapeBook(w http.ResponseWriter, r *http.Request) {
+	var body struct {
+		URL string `json:"url"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&body); err != nil || body.URL == "" {
+		jsonError(w, http.StatusBadRequest, `request body must be JSON with "url" field`)
+		return
+	}
+	taskID, err := s.deps.Producer.CreateScrapeTask(r.Context(), "book", body.URL, 0, 0)
+	if err != nil {
+		s.deps.Log.Error("handleScrapeBook: CreateScrapeTask failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to create task")
+		return
+	}
+	writeJSON(w, http.StatusAccepted, map[string]string{"task_id": taskID, "status": "accepted"})
+}
+
+// handleScrapeBookRange handles POST /scrape/book/range.
+// Body: {"url": "...", "from": N, "to": M}
+func (s *Server) handleScrapeBookRange(w http.ResponseWriter, r *http.Request) {
+	var body struct {
+		URL  string `json:"url"`
+		From int    `json:"from"`
+		To   int    `json:"to"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&body); err != nil || body.URL == "" {
+		jsonError(w, http.StatusBadRequest, `request body must be JSON with "url" field`)
+		return
+	}
+	taskID, err := s.deps.Producer.CreateScrapeTask(r.Context(), "book_range", body.URL, body.From, body.To)
+	if err != nil {
+		s.deps.Log.Error("handleScrapeBookRange: CreateScrapeTask failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to create task")
+		return
+	}
+	writeJSON(w, http.StatusAccepted, map[string]string{"task_id": taskID, "status": "accepted"})
+}
+
+// handleCancelTask handles POST /api/cancel-task/{id}.
+// Transitions a pending task (scrape or audio) to status=cancelled.
+// Returns 404 if the task does not exist, 409 if it cannot be cancelled
+// (e.g. already running/done).
+func (s *Server) handleCancelTask(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	if id == "" {
+		jsonError(w, http.StatusBadRequest, "missing task id")
+		return
+	}
+	if err := s.deps.Producer.CancelTask(r.Context(), id); err != nil {
+		s.deps.Log.Warn("handleCancelTask: CancelTask failed", "id", id, "err", err)
+		jsonError(w, http.StatusConflict, "could not cancel task: "+err.Error())
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]string{"status": "cancelled", "id": id})
+}
+
+// ── Scrape task status / history ───────────────────────────────────────────────
+
+// handleScrapeStatus handles GET /api/scrape/status.
+// Returns the most recent scrape task status (or {"running":false} if none).
+func (s *Server) handleScrapeStatus(w http.ResponseWriter, r *http.Request) {
+	tasks, err := s.deps.TaskReader.ListScrapeTasks(r.Context())
+	if err != nil {
+		s.deps.Log.Error("handleScrapeStatus: ListScrapeTasks failed", "err", err)
+		writeJSON(w, 0, map[string]bool{"running": false})
+		return
+	}
+	running := false
+	for _, t := range tasks {
+		if t.Status == domain.TaskStatusRunning || t.Status == domain.TaskStatusPending {
+			running = true
+			break
+		}
+	}
+	writeJSON(w, 0, map[string]bool{"running": running})
+}
+
+// handleScrapeTasks handles GET /api/scrape/tasks.
+// Returns all scrape task records from PocketBase, newest first.
+func (s *Server) handleScrapeTasks(w http.ResponseWriter, r *http.Request) {
+	tasks, err := s.deps.TaskReader.ListScrapeTasks(r.Context())
+	if err != nil {
+		s.deps.Log.Error("handleScrapeTasks: ListScrapeTasks failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to list tasks")
+		return
+	}
+	if tasks == nil {
+		tasks = []domain.ScrapeTask{}
+	}
+	writeJSON(w, 0, tasks)
+}
+
+// ── Browse & search ────────────────────────────────────────────────────────────
+
+// NovelListing represents a single novel entry from the novelfire browse/search page.
+type NovelListing struct {
+	Slug     string `json:"slug"`
+	Title    string `json:"title"`
+	Cover    string `json:"cover"`
+	Rank     string `json:"rank"`
+	Rating   string `json:"rating"`
+	Chapters string `json:"chapters"`
+	URL      string `json:"url"`
+}
+
+// handleBrowse handles GET /api/browse.
+// Fetches novelfire.net live (no MinIO cache in the new backend).
+// Query params: page (default 1), genre (default "all"), sort (default "popular"),
+// status (default "all"), type (default "all-novel")
+func (s *Server) handleBrowse(w http.ResponseWriter, r *http.Request) {
+	q := r.URL.Query()
+	page := q.Get("page")
+	if page == "" {
+		page = "1"
+	}
+	genre := q.Get("genre")
+	if genre == "" {
+		genre = "all"
+	}
+	sortBy := q.Get("sort")
+	if sortBy == "" {
+		sortBy = "popular"
+	}
+	status := q.Get("status")
+	if status == "" {
+		status = "all"
+	}
+	novelType := q.Get("type")
+	if novelType == "" {
+		novelType = "all-novel"
+	}
+
+	pageNum, _ := strconv.Atoi(page)
+	if pageNum <= 0 {
+		pageNum = 1
+	}
+
+	// ── Try MinIO cache first ─────────────────────────────────────────────
+	// Only page 1 is cached; higher pages fall through to live fetch.
+	if pageNum == 1 && s.deps.BrowseStore != nil {
+		if data, ok, err := s.deps.BrowseStore.GetBrowsePage(r.Context(), genre, sortBy, status, novelType, 1); err == nil && ok {
+			w.Header().Set("Content-Type", "application/json")
+			w.Header().Set("Cache-Control", "public, max-age=300")
+			_, _ = w.Write(data)
+			return
+		}
+	}
+
+	// ── Fall back to live novelfire.net fetch ──────────────────────────────
+	ctx, cancel := context.WithTimeout(r.Context(), 45*time.Second)
+	defer cancel()
+
+	targetURL := fmt.Sprintf("%s/genre-%s/sort-%s/status-%s/%s?page=%d",
+		novelFireBase, genre, sortBy, status, novelType, pageNum)
+
+	novels, hasNext, err := s.fetchBrowsePage(ctx, targetURL)
+	if err != nil {
+		// Live fetch also failed — return empty list with cached=false flag so
+		// the UI can show a "not ready yet" state instead of a hard error.
+		s.deps.Log.Error("handleBrowse: fetch failed (no cache)", "url", targetURL, "err", err)
+		w.Header().Set("Cache-Control", "no-store")
+		writeJSON(w, 0, map[string]any{
+			"novels":  []any{},
+			"page":    pageNum,
+			"hasNext": false,
+			"cached":  false,
+		})
+		return
+	}
+
+	w.Header().Set("Cache-Control", "public, max-age=300")
+	writeJSON(w, 0, map[string]any{
+		"novels":  novels,
+		"page":    pageNum,
+		"hasNext": hasNext,
+		"cached":  false,
+	})
+}
+
+// handleSearch handles GET /api/search.
+// Query params: q (min 2 chars), source ("local"|"remote"|"all", default "all")
+func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
+	q := r.URL.Query().Get("q")
+	if len([]rune(q)) < 2 {
+		jsonError(w, http.StatusBadRequest, "query must be at least 2 characters")
+		return
+	}
+
+	source := r.URL.Query().Get("source")
+	if source == "" {
+		source = "all"
+	}
+
+	ctx, cancel := context.WithTimeout(r.Context(), 20*time.Second)
+	defer cancel()
+
+	var localResults, remoteResults []NovelListing
+
+	// Local search (PocketBase books)
+	if source == "local" || source == "all" {
+		books, err := s.deps.BookReader.ListBooks(ctx)
+		if err != nil {
+			s.deps.Log.Warn("search: ListBooks failed", "err", err)
+		} else {
+			qLower := strings.ToLower(q)
+			for _, b := range books {
+				if strings.Contains(strings.ToLower(b.Title), qLower) ||
+					strings.Contains(strings.ToLower(b.Author), qLower) {
+					localResults = append(localResults, NovelListing{
+						Slug:  b.Slug,
+						Title: b.Title,
+						Cover: b.Cover,
+						URL:   b.SourceURL,
+					})
+				}
+			}
+		}
+	}
+
+	// Remote search (novelfire.net)
+	if source == "remote" || source == "all" {
+		searchURL := novelFireBase + "/search?keyword=" + url.QueryEscape(q)
+		req, err := http.NewRequestWithContext(ctx, http.MethodGet, searchURL, nil)
+		if err == nil {
+			req.Header.Set("User-Agent", "Mozilla/5.0 (compatible; libnovel-backend/2)")
+			req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
+			if resp, fetchErr := http.DefaultClient.Do(req); fetchErr == nil {
+				defer resp.Body.Close()
+				if resp.StatusCode == http.StatusOK {
+					parsed, _ := parseBrowsePage(resp.Body)
+					remoteResults = parsed
+				}
+			}
+		}
+	}
+
+	// Merge: local first, de-duplicate remote
+	localSlugs := make(map[string]bool, len(localResults))
+	for _, item := range localResults {
+		localSlugs[item.Slug] = true
+	}
+	combined := make([]NovelListing, 0, len(localResults)+len(remoteResults))
+	combined = append(combined, localResults...)
+	for _, item := range remoteResults {
+		if !localSlugs[item.Slug] {
+			combined = append(combined, item)
+		}
+	}
+
+	writeJSON(w, 0, map[string]any{
+		"results":      combined,
+		"local_count":  len(localResults),
+		"remote_count": len(remoteResults),
+	})
+}
+
+// ── Ranking ────────────────────────────────────────────────────────────────────
+
+// handleGetRanking handles GET /api/ranking.
+// Returns all ranking items sorted by rank ascending.
+func (s *Server) handleGetRanking(w http.ResponseWriter, r *http.Request) {
+	items, err := s.deps.RankingStore.ReadRankingItems(r.Context())
+	if err != nil {
+		s.deps.Log.Error("handleGetRanking: ReadRankingItems failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to read ranking")
+		return
+	}
+	if items == nil {
+		items = []domain.RankingItem{}
+	}
+	writeJSON(w, 0, items)
+}
+
+// handleGetCover handles GET /api/cover/{domain}/{slug}.
+// The new backend does not cache covers in MinIO. Instead it redirects the
+// client to the novelfire.net source URL. The domain path segment is kept for
+// API compatibility with the old scraper.
+func (s *Server) handleGetCover(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	if slug == "" {
+		http.Error(w, "missing slug", http.StatusBadRequest)
+		return
+	}
+	// Redirect to the standard novelfire cover CDN URL. If the caller has the
+	// actual cover URL stored in metadata they should use it directly; this
+	// endpoint is a best-effort fallback.
+	coverURL := fmt.Sprintf("https://cdn.novelfire.net/covers/%s.jpg", slug)
+	http.Redirect(w, r, coverURL, http.StatusFound)
+}
+
+// ── Preview (live scrape, no store writes) ─────────────────────────────────────
+
+// handleBookPreview handles GET /api/book-preview/{slug}.
+//
+// If the book is already in the library (PocketBase), returns its metadata and
+// chapter index immediately (200).
+//
+// If the book is not yet in the library, enqueues a "book" scrape task and
+// returns 202 Accepted with the task_id. The runner will scrape the book
+// asynchronously; the client should poll GET /api/scrape/status or
+// GET /api/scrape/tasks to detect completion, then re-request this endpoint.
+//
+// The backend never scrapes directly — all scraping is the runner's job.
+func (s *Server) handleBookPreview(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	if slug == "" {
+		jsonError(w, http.StatusBadRequest, "missing slug")
+		return
+	}
+
+	ctx := r.Context()
+
+	meta, inLib, err := s.deps.BookReader.ReadMetadata(ctx, slug)
+	if err != nil {
+		s.deps.Log.Warn("book-preview: ReadMetadata failed", "slug", slug, "err", err)
+		inLib = false
+	}
+
+	if inLib {
+		// Fast path: book is already scraped — return stored data.
+		chapters, cerr := s.deps.BookReader.ListChapters(ctx, slug)
+		if cerr != nil {
+			s.deps.Log.Warn("book-preview: ListChapters failed", "slug", slug, "err", cerr)
+		}
+		writeJSON(w, 0, map[string]any{
+			"in_lib":   true,
+			"meta":     meta,
+			"chapters": chapters,
+		})
+		return
+	}
+
+	// Book not in library — enqueue a range scrape task for the first 20 chapters
+	// so the user can start reading quickly. Remaining chapters can be scraped
+	// later via the book detail page or the admin scrape panel.
+	bookURL := r.URL.Query().Get("source_url")
+	if bookURL == "" {
+		bookURL = fmt.Sprintf("%s/book/%s", novelFireBase, slug)
+	}
+
+	const previewFrom, previewTo = 1, 20
+	taskID, err := s.deps.Producer.CreateScrapeTask(ctx, "book_range", bookURL, previewFrom, previewTo)
+	if err != nil {
+		s.deps.Log.Error("book-preview: CreateScrapeTask failed", "slug", slug, "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to enqueue scrape task")
+		return
+	}
+
+	s.deps.Log.Info("book-preview: enqueued range scrape task", "slug", slug, "task_id", taskID,
+		"from", previewFrom, "to", previewTo)
+	writeJSON(w, http.StatusAccepted, map[string]any{
+		"in_lib":  false,
+		"task_id": taskID,
+		"message": fmt.Sprintf("scraping first %d chapters; poll /api/scrape/tasks for completion", previewTo),
+	})
+}
+
+// ── Chapter text ───────────────────────────────────────────────────────────────
+
+// handleChapterText handles GET /api/chapter-text/{slug}/{n}.
+// Returns plain text (markdown stripped) of a stored chapter.
+func (s *Server) handleChapterText(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 {
+		http.NotFound(w, r)
+		return
+	}
+	raw, err := s.deps.BookReader.ReadChapter(r.Context(), slug, n)
+	if err != nil {
+		http.NotFound(w, r)
+		return
+	}
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	w.Header().Set("Cache-Control", "no-store")
+	fmt.Fprint(w, stripMarkdown(raw))
+}
+
+// handleChapterMarkdown handles GET /api/chapter-markdown/{slug}/{n}.
+//
+// Returns the raw markdown content of a stored chapter directly from MinIO.
+// This is used by the SvelteKit UI as a simpler alternative to presign+fetch:
+// it avoids the need for the SvelteKit server to reach MinIO directly, and
+// gives a clean 404 when the chapter has not been scraped yet.
+func (s *Server) handleChapterMarkdown(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 || slug == "" {
+		http.Error(w, `{"error":"invalid params"}`, http.StatusBadRequest)
+		return
+	}
+	raw, err := s.deps.BookReader.ReadChapter(r.Context(), slug, n)
+	if err != nil {
+		s.deps.Log.Warn("chapter-markdown: not found in MinIO", "slug", slug, "n", n, "err", err)
+		http.Error(w, `{"error":"chapter not found"}`, http.StatusNotFound)
+		return
+	}
+	w.Header().Set("Content-Type", "text/markdown; charset=utf-8")
+	w.Header().Set("Cache-Control", "no-store")
+	fmt.Fprint(w, raw)
+}
+
+// handleReindex handles POST /api/reindex/{slug}.
+// Rebuilds the chapters_idx PocketBase collection for a book from MinIO objects.
+func (s *Server) handleReindex(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	if slug == "" {
+		jsonError(w, http.StatusBadRequest, "missing slug")
+		return
+	}
+
+	count, err := s.deps.BookReader.ReindexChapters(r.Context(), slug)
+	if err != nil {
+		s.deps.Log.Error("reindex failed", "slug", slug, "indexed", count, "err", err)
+		writeJSON(w, http.StatusInternalServerError, map[string]any{
+			"error":   err.Error(),
+			"indexed": count,
+		})
+		return
+	}
+
+	s.deps.Log.Info("reindex complete", "slug", slug, "indexed", count)
+	writeJSON(w, 0, map[string]any{"slug": slug, "indexed": count})
+}
+
+// ── Audio ──────────────────────────────────────────────────────────────────────
+
+// handleAudioGenerate handles POST /api/audio/{slug}/{n}.
+// Creates an audio_jobs task in PocketBase (runner executes asynchronously).
+// Returns 200 immediately if audio already exists in MinIO.
+// Returns 202 with the task_id if a new task was created.
+func (s *Server) handleAudioGenerate(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 {
+		jsonError(w, http.StatusBadRequest, "invalid chapter")
+		return
+	}
+
+	voice := s.cfg.DefaultVoice
+	var body struct {
+		Voice string `json:"voice"`
+	}
+	if r.Body != nil {
+		_ = json.NewDecoder(r.Body).Decode(&body)
+	}
+	if body.Voice != "" {
+		voice = body.Voice
+	}
+
+	cacheKey := fmt.Sprintf("%s/%d/%s", slug, n, voice)
+
+	// Fast path: audio already in MinIO
+	audioKey := s.deps.AudioStore.AudioObjectKey(slug, n, voice)
+	if s.deps.AudioStore.AudioExists(r.Context(), audioKey) {
+		proxyURL := fmt.Sprintf("/api/audio-proxy/%s/%d?voice=%s", slug, n, voice)
+		writeJSON(w, 0, map[string]string{"url": proxyURL, "status": "done"})
+		return
+	}
+
+	// Check if a task is already pending/running
+	task, found, _ := s.deps.TaskReader.GetAudioTask(r.Context(), cacheKey)
+	if found && (task.Status == domain.TaskStatusPending || task.Status == domain.TaskStatusRunning) {
+		writeJSON(w, http.StatusAccepted, map[string]string{
+			"task_id": task.ID,
+			"status":  string(task.Status),
+		})
+		return
+	}
+
+	// Create a new audio task
+	taskID, err := s.deps.Producer.CreateAudioTask(r.Context(), slug, n, voice)
+	if err != nil {
+		s.deps.Log.Error("handleAudioGenerate: CreateAudioTask failed", "err", err)
+		jsonError(w, http.StatusInternalServerError, "failed to create audio task")
+		return
+	}
+
+	writeJSON(w, http.StatusAccepted, map[string]string{
+		"task_id": taskID,
+		"status":  "pending",
+	})
+}
+
+// handleAudioStatus handles GET /api/audio/status/{slug}/{n}.
+// Polls PocketBase for the audio task status.
+// Query params: voice (optional, defaults to DefaultVoice)
+func (s *Server) handleAudioStatus(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 || slug == "" {
+		jsonError(w, http.StatusBadRequest, "invalid params")
+		return
+	}
+
+	voice := r.URL.Query().Get("voice")
+	if voice == "" {
+		voice = s.cfg.DefaultVoice
+	}
+
+	// Fast path: audio exists in MinIO
+	audioKey := s.deps.AudioStore.AudioObjectKey(slug, n, voice)
+	if s.deps.AudioStore.AudioExists(r.Context(), audioKey) {
+		proxyURL := fmt.Sprintf("/api/audio-proxy/%s/%d?voice=%s", slug, n, voice)
+		writeJSON(w, 0, map[string]string{
+			"status": "done",
+			"url":    proxyURL,
+		})
+		return
+	}
+
+	cacheKey := fmt.Sprintf("%s/%d/%s", slug, n, voice)
+	task, found, _ := s.deps.TaskReader.GetAudioTask(r.Context(), cacheKey)
+	if !found {
+		writeJSON(w, 0, map[string]string{"status": "idle"})
+		return
+	}
+
+	resp := map[string]string{
+		"status":  string(task.Status),
+		"task_id": task.ID,
+	}
+	if task.Status == domain.TaskStatusFailed && task.ErrorMessage != "" {
+		resp["error"] = task.ErrorMessage
+	}
+	writeJSON(w, 0, resp)
+}
+
+// handleAudioProxy handles GET /api/audio-proxy/{slug}/{n}.
+// Redirects to a presigned MinIO URL for the generated audio object.
+// Query params: voice (optional, defaults to DefaultVoice)
+func (s *Server) handleAudioProxy(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 {
+		http.NotFound(w, r)
+		return
+	}
+
+	voice := r.URL.Query().Get("voice")
+	if voice == "" {
+		voice = s.cfg.DefaultVoice
+	}
+
+	audioKey := s.deps.AudioStore.AudioObjectKey(slug, n, voice)
+	if !s.deps.AudioStore.AudioExists(r.Context(), audioKey) {
+		http.Error(w, "audio not generated yet", http.StatusNotFound)
+		return
+	}
+
+	presignURL, err := s.deps.PresignStore.PresignAudio(r.Context(), audioKey, 1*time.Hour)
+	if err != nil {
+		s.deps.Log.Error("handleAudioProxy: PresignAudio failed", "slug", slug, "n", n, "err", err)
+		http.Error(w, "presign failed", http.StatusInternalServerError)
+		return
+	}
+
+	http.Redirect(w, r, presignURL, http.StatusFound)
+}
+
+// ── Voices ─────────────────────────────────────────────────────────────────────
+
+// handleVoices handles GET /api/voices.
+// Returns {"voices": [...]} — fetched from Kokoro with built-in fallback.
+func (s *Server) handleVoices(w http.ResponseWriter, r *http.Request) {
+	writeJSON(w, 0, map[string]any{"voices": s.voices(r.Context())})
+}
+
+// ── Presigned URLs ─────────────────────────────────────────────────────────────
+
+// handlePresignChapter handles GET /api/presign/chapter/{slug}/{n}.
+func (s *Server) handlePresignChapter(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 || slug == "" {
+		jsonError(w, http.StatusBadRequest, "invalid params")
+		return
+	}
+
+	u, err := s.deps.PresignStore.PresignChapter(r.Context(), slug, n, 15*time.Minute)
+	if err != nil {
+		s.deps.Log.Error("presign chapter failed", "slug", slug, "n", n, "err", err)
+		jsonError(w, http.StatusInternalServerError, "presign failed")
+		return
+	}
+	writeJSON(w, 0, map[string]string{"url": u})
+}
+
+// handlePresignAudio handles GET /api/presign/audio/{slug}/{n}.
+// Query params: voice (optional)
+func (s *Server) handlePresignAudio(w http.ResponseWriter, r *http.Request) {
+	slug := r.PathValue("slug")
+	n, err := strconv.Atoi(r.PathValue("n"))
+	if err != nil || n < 1 || slug == "" {
+		jsonError(w, http.StatusBadRequest, "invalid params")
+		return
+	}
+
+	voice := r.URL.Query().Get("voice")
+	if voice == "" {
+		voice = s.cfg.DefaultVoice
+	}
+
+	key := s.deps.AudioStore.AudioObjectKey(slug, n, voice)
+	if !s.deps.AudioStore.AudioExists(r.Context(), key) {
+		http.NotFound(w, r)
+		return
+	}
+
+	u, err := s.deps.PresignStore.PresignAudio(r.Context(), key, 1*time.Hour)
+	if err != nil {
+		s.deps.Log.Error("presign audio failed", "slug", slug, "n", n, "err", err)
+		jsonError(w, http.StatusInternalServerError, "presign failed")
+		return
+	}
+	writeJSON(w, 0, map[string]string{"url": u})
+}
+
+// handlePresignVoiceSample handles GET /api/presign/voice-sample/{voice}.
+func (s *Server) handlePresignVoiceSample(w http.ResponseWriter, r *http.Request) {
+	voice := r.PathValue("voice")
+	if voice == "" {
+		jsonError(w, http.StatusBadRequest, "missing voice")
+		return
+	}
+
+	key := kokoro.VoiceSampleKey(voice)
+	if !s.deps.AudioStore.AudioExists(r.Context(), key) {
+		http.NotFound(w, r)
+		return
+	}
+
+	u, err := s.deps.PresignStore.PresignAudio(r.Context(), key, 1*time.Hour)
+	if err != nil {
+		s.deps.Log.Error("presign voice sample failed", "voice", voice, "err", err)
+		jsonError(w, http.StatusInternalServerError, "presign failed")
+		return
+	}
+	writeJSON(w, 0, map[string]string{"url": u})
+}
+
+// handlePresignAvatarUpload handles GET /api/presign/avatar-upload/{userId}.
+// Query params: ext (jpg|png|webp, defaults to jpg)
+func (s *Server) handlePresignAvatarUpload(w http.ResponseWriter, r *http.Request) {
+	userID := r.PathValue("userId")
+	if userID == "" {
+		jsonError(w, http.StatusBadRequest, "missing userId")
+		return
+	}
+
+	ext := r.URL.Query().Get("ext")
+	switch ext {
+	case "jpg", "jpeg":
+		ext = "jpg"
+	case "png":
+		ext = "png"
+	case "webp":
+		ext = "webp"
+	default:
+		ext = "jpg"
+	}
+
+	uploadURL, key, err := s.deps.PresignStore.PresignAvatarUpload(r.Context(), userID, ext)
+	if err != nil {
+		s.deps.Log.Error("presign avatar upload failed", "userId", userID, "err", err)
+		jsonError(w, http.StatusInternalServerError, "presign failed")
+		return
+	}
+	writeJSON(w, 0, map[string]string{"upload_url": uploadURL, "key": key})
+}
+
+// handlePresignAvatar handles GET /api/presign/avatar/{userId}.
+func (s *Server) handlePresignAvatar(w http.ResponseWriter, r *http.Request) {
+	userID := r.PathValue("userId")
+	if userID == "" {
+		jsonError(w, http.StatusBadRequest, "missing userId")
+		return
+	}
+
+	u, found, err := s.deps.PresignStore.PresignAvatarURL(r.Context(), userID)
+	if err != nil {
+		s.deps.Log.Error("presign avatar failed", "userId", userID, "err", err)
+		jsonError(w, http.StatusInternalServerError, "presign failed")
+		return
+	}
+	if !found {
+		http.NotFound(w, r)
+		return
+	}
+	writeJSON(w, 0, map[string]string{"url": u})
+}
+
+// ── Progress ───────────────────────────────────────────────────────────────────
+
+// handleGetProgress handles GET /api/progress.
+// Returns {"slug": chapterNum, "slug_ts": timestampMs, ...}
+func (s *Server) handleGetProgress(w http.ResponseWriter, r *http.Request) {
+	sid := ensureSession(w, r)
+	entries, err := s.deps.ProgressStore.AllProgress(r.Context(), sid)
+	if err != nil {
+		s.deps.Log.Error("AllProgress failed", "err", err)
+		entries = nil
+	}
+
+	progress := make(map[string]any, len(entries)*2)
+	for _, p := range entries {
+		progress[p.Slug] = p.Chapter
+		progress[p.Slug+"_ts"] = p.UpdatedAt.UnixMilli()
+	}
+	writeJSON(w, 0, progress)
+}
+
+// handleSetProgress handles POST /api/progress/{slug}.
+// Body: {"chapter": N}
+func (s *Server) handleSetProgress(w http.ResponseWriter, r *http.Request) {
+	sid := ensureSession(w, r)
+	slug := r.PathValue("slug")
+	if slug == "" {
+		jsonError(w, http.StatusBadRequest, "missing slug")
+		return
+	}
+
+	var body struct {
+		Chapter int `json:"chapter"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&body); err != nil || body.Chapter < 1 {
+		jsonError(w, http.StatusBadRequest, "invalid body")
+		return
+	}
+
+	p := domain.ReadingProgress{
+		Slug:      slug,
+		Chapter:   body.Chapter,
+		UpdatedAt: time.Now(),
+	}
+	if err := s.deps.ProgressStore.SetProgress(r.Context(), sid, p); err != nil {
+		s.deps.Log.Error("SetProgress failed", "slug", slug, "err", err)
+		jsonError(w, http.StatusInternalServerError, "store error")
+		return
+	}
+	writeJSON(w, 0, map[string]string{})
+}
+
+// handleDeleteProgress handles DELETE /api/progress/{slug}.
+func (s *Server) handleDeleteProgress(w http.ResponseWriter, r *http.Request) {
+	sid := ensureSession(w, r)
+	slug := r.PathValue("slug")
+	if slug == "" {
+		jsonError(w, http.StatusBadRequest, "missing slug")
+		return
+	}
+
+	if err := s.deps.ProgressStore.DeleteProgress(r.Context(), sid, slug); err != nil {
+		s.deps.Log.Error("DeleteProgress failed", "slug", slug, "err", err)
+		// non-fatal
+	}
+	writeJSON(w, 0, map[string]string{})
+}
+
+// ── Browse page parsing helpers ────────────────────────────────────────────────
+
+// fetchBrowsePage fetches pageURL and parses NovelListings from the HTML.
+func (s *Server) fetchBrowsePage(ctx context.Context, pageURL string) ([]NovelListing, bool, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, pageURL, nil)
+	if err != nil {
+		return nil, false, fmt.Errorf("build request: %w", err)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (compatible; libnovel-backend/2)")
+	req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
+	req.Header.Set("Accept-Language", "en-US,en;q=0.9")
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, false, fmt.Errorf("fetch %s: %w", pageURL, err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		_, _ = io.Copy(io.Discard, resp.Body)
+		return nil, false, fmt.Errorf("upstream returned %d", resp.StatusCode)
+	}
+
+	novels, hasNext := parseBrowsePage(resp.Body)
+	return novels, hasNext, nil
+}
+
+// parseBrowsePage parses a novelfire HTML body and returns novel listings.
+// It uses a simple string-scanning approach to avoid importing golang.org/x/net/html
+// in this package (that dependency is only in internal/novelfire).
+func parseBrowsePage(r io.Reader) ([]NovelListing, bool) {
+	data, err := io.ReadAll(r)
+	if err != nil {
+		return nil, false
+	}
+	body := string(data)
+
+	var novels []NovelListing
+	hasNext := false
+
+	// Detect "next page" link
+	if strings.Contains(body, `rel="next"`) ||
+		strings.Contains(body, `aria-label="Next"`) ||
+		strings.Contains(body, `class="next"`) {
+		hasNext = true
+	}
+
+	// Extract novel slugs and titles using simple regex patterns.
+	// novelfire.net novel items: <li class="novel-item">...</li>
+	// Each contains an anchor like <a href="/book/{slug}">
+	slugRe := regexp.MustCompile(`href="/book/([^/"]+)"`)
+	titleRe := regexp.MustCompile(`class="novel-title[^"]*"[^>]*>([^<]+)<`)
+	coverRe := regexp.MustCompile(`data-src="(https?://[^"]+)"`)
+
+	slugMatches := slugRe.FindAllStringSubmatch(body, -1)
+	titleMatches := titleRe.FindAllStringSubmatch(body, -1)
+	coverMatches := coverRe.FindAllStringSubmatch(body, -1)
+
+	seen := make(map[string]bool)
+	for i, sm := range slugMatches {
+		slug := sm[1]
+		if seen[slug] {
+			continue
+		}
+		seen[slug] = true
+
+		novel := NovelListing{
+			Slug: slug,
+			URL:  novelFireBase + "/book/" + slug,
+		}
+		if i < len(titleMatches) {
+			novel.Title = strings.TrimSpace(titleMatches[i][1])
+		}
+		if i < len(coverMatches) {
+			novel.Cover = coverMatches[i][1]
+		}
+		if novel.Title != "" {
+			novels = append(novels, novel)
+		}
+	}
+
+	return novels, hasNext
+}
+
+// ── Markdown stripping ─────────────────────────────────────────────────────────
+
+// stripMarkdown removes common markdown syntax from src, returning plain text.
+func stripMarkdown(src string) string {
+	src = regexp.MustCompile(`(?m)^#{1,6}\s+`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\*{1,3}|_{1,3}`).ReplaceAllString(src, "")
+	src = regexp.MustCompile("(?s)```.*?```").ReplaceAllString(src, "")
+	src = regexp.MustCompile("`[^`]*`").ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\[([^\]]+)\]\([^)]+\)`).ReplaceAllString(src, "$1")
+	src = regexp.MustCompile(`!\[[^\]]*\]\([^)]+\)`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`(?m)^>\s?`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`(?m)^[-*_]{3,}\s*$`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\n{3,}`).ReplaceAllString(src, "\n\n")
+	return strings.TrimSpace(src)
+}
+
+// ── Hardcoded Kokoro voice fallback ───────────────────────────────────────────
+
+// kokoroVoices is the built-in fallback list used when the Kokoro service is
+// unavailable. Matches the list in the old scraper helpers.go.
+var kokoroVoices = []string{
+	// American English
+	"af_alloy", "af_aoede", "af_bella", "af_heart", "af_jadzia",
+	"af_jessica", "af_kore", "af_nicole", "af_nova", "af_river",
+	"af_sarah", "af_sky",
+	"am_adam", "am_echo", "am_eric", "am_fenrir", "am_liam",
+	"am_michael", "am_onyx", "am_puck",
+	// British English
+	"bf_alice", "bf_emma", "bf_lily",
+	"bm_daniel", "bm_fable", "bm_george", "bm_lewis",
+	// Spanish
+	"ef_dora", "em_alex",
+	// French
+	"ff_siwis",
+	// Hindi
+	"hf_alpha", "hf_beta", "hm_omega", "hm_psi",
+	// Italian
+	"if_sara", "im_nicola",
+	// Japanese
+	"jf_alpha", "jf_gongitsune", "jf_nezumi", "jf_tebukuro", "jm_kumo",
+	// Portuguese
+	"pf_dora", "pm_alex",
+	// Chinese
+	"zf_xiaobei", "zf_xiaoni", "zf_xiaoxiao", "zf_xiaoyi",
+	"zm_yunjian", "zm_yunxi", "zm_yunxia", "zm_yunyang",
+}

backend/internal/backend/server.go

@@ -0,0 +1,287 @@
+// Package backend implements the HTTP API server for the LibNovel backend.
+//
+// The server exposes all endpoints consumed by the SvelteKit UI:
+//   - Book/chapter reads from PocketBase/MinIO via bookstore interfaces
+//   - Task creation (scrape + audio) via taskqueue.Producer — the runner binary
+//     picks up and executes those tasks asynchronously
+//   - Presigned MinIO URLs for media playback/upload
+//   - Session-scoped reading progress
+//   - Live novelfire.net browse/search (no scraper interface needed; direct HTTP)
+//   - Kokoro voice list
+//
+// The backend never scrapes directly. All scraping (metadata, chapter list,
+// chapter text, audio TTS) is delegated to the runner binary via PocketBase
+// task records. GET /api/book-preview enqueues a task when the book is absent.
+//
+// All external dependencies are injected as interfaces; concrete types live in
+// internal/storage and are wired by cmd/backend/main.go.
+package backend
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"sync"
+	"time"
+
+	"github.com/libnovel/backend/internal/bookstore"
+	"github.com/libnovel/backend/internal/kokoro"
+	"github.com/libnovel/backend/internal/taskqueue"
+)
+
+// Dependencies holds all external services the backend server depends on.
+// Every field is an interface so test doubles can be injected freely.
+type Dependencies struct {
+	// BookReader reads book metadata and chapter text from PocketBase/MinIO.
+	BookReader bookstore.BookReader
+	// RankingStore reads ranking data from PocketBase.
+	RankingStore bookstore.RankingStore
+	// AudioStore checks audio object existence and computes MinIO keys.
+	AudioStore bookstore.AudioStore
+	// PresignStore generates short-lived MinIO URLs.
+	PresignStore bookstore.PresignStore
+	// ProgressStore reads/writes per-session reading progress.
+	ProgressStore bookstore.ProgressStore
+	// BrowseStore reads cached browse page snapshots from MinIO.
+	BrowseStore bookstore.BrowseStore
+	// Producer creates scrape/audio tasks in PocketBase.
+	Producer taskqueue.Producer
+	// TaskReader reads scrape/audio task records from PocketBase.
+	TaskReader taskqueue.Reader
+	// Kokoro is the TTS client (used for voice list only in the backend;
+	// audio generation is done by the runner).
+	Kokoro kokoro.Client
+	// Log is the structured logger.
+	Log *slog.Logger
+}
+
+// Config holds HTTP server tuning parameters.
+type Config struct {
+	// Addr is the listen address, e.g. ":8080".
+	Addr string
+	// DefaultVoice is used when no voice is specified in audio requests.
+	DefaultVoice string
+	// Version and Commit are embedded in /health and /api/version responses.
+	Version string
+	Commit  string
+}
+
+// Server is the HTTP API server.
+type Server struct {
+	cfg  Config
+	deps Dependencies
+
+	// voiceMu guards cachedVoices. Populated lazily on first GET /api/voices.
+	voiceMu      sync.RWMutex
+	cachedVoices []string
+}
+
+// New creates a Server from cfg and deps.
+func New(cfg Config, deps Dependencies) *Server {
+	if cfg.DefaultVoice == "" {
+		cfg.DefaultVoice = "af_bella"
+	}
+	if deps.Log == nil {
+		deps.Log = slog.Default()
+	}
+	return &Server{cfg: cfg, deps: deps}
+}
+
+// ListenAndServe registers all routes and starts the HTTP server.
+// It blocks until ctx is cancelled, then performs a graceful shutdown.
+func (s *Server) ListenAndServe(ctx context.Context) error {
+	mux := http.NewServeMux()
+
+	// Health / version
+	mux.HandleFunc("GET /health", s.handleHealth)
+	mux.HandleFunc("GET /api/version", s.handleVersion)
+
+	// Scrape task creation (202 Accepted — runner executes asynchronously)
+	mux.HandleFunc("POST /scrape", s.handleScrapeCatalogue)
+	mux.HandleFunc("POST /scrape/book", s.handleScrapeBook)
+	mux.HandleFunc("POST /scrape/book/range", s.handleScrapeBookRange)
+
+	// Scrape task status / history
+	mux.HandleFunc("GET /api/scrape/status", s.handleScrapeStatus)
+	mux.HandleFunc("GET /api/scrape/tasks", s.handleScrapeTasks)
+
+	// Cancel a pending task (scrape or audio)
+	mux.HandleFunc("POST /api/cancel-task/{id}", s.handleCancelTask)
+
+	// Browse & search (live novelfire.net)
+	mux.HandleFunc("GET /api/browse", s.handleBrowse)
+	mux.HandleFunc("GET /api/search", s.handleSearch)
+
+	// Ranking (from PocketBase)
+	mux.HandleFunc("GET /api/ranking", s.handleGetRanking)
+
+	// Cover proxy (live URL redirect)
+	mux.HandleFunc("GET /api/cover/{domain}/{slug}", s.handleGetCover)
+
+	// Book preview (enqueues scrape task if not in library; returns stored data if already scraped)
+	mux.HandleFunc("GET /api/book-preview/{slug}", s.handleBookPreview)
+
+	// Chapter text (served from MinIO via PocketBase index)
+	mux.HandleFunc("GET /api/chapter-text/{slug}/{n}", s.handleChapterText)
+	// Raw markdown chapter content — served directly from MinIO by the backend.
+	// Use this instead of presign+fetch to avoid SvelteKit→MinIO network path.
+	mux.HandleFunc("GET /api/chapter-markdown/{slug}/{n}", s.handleChapterMarkdown)
+
+	// Reindex chapters_idx from MinIO
+	mux.HandleFunc("POST /api/reindex/{slug}", s.handleReindex)
+
+	// Audio task creation (backend creates task; runner executes)
+	mux.HandleFunc("POST /api/audio/{slug}/{n}", s.handleAudioGenerate)
+	mux.HandleFunc("GET /api/audio/status/{slug}/{n}", s.handleAudioStatus)
+	mux.HandleFunc("GET /api/audio-proxy/{slug}/{n}", s.handleAudioProxy)
+
+	// Voices list
+	mux.HandleFunc("GET /api/voices", s.handleVoices)
+
+	// Presigned URLs
+	mux.HandleFunc("GET /api/presign/chapter/{slug}/{n}", s.handlePresignChapter)
+	mux.HandleFunc("GET /api/presign/audio/{slug}/{n}", s.handlePresignAudio)
+	mux.HandleFunc("GET /api/presign/voice-sample/{voice}", s.handlePresignVoiceSample)
+	mux.HandleFunc("GET /api/presign/avatar-upload/{userId}", s.handlePresignAvatarUpload)
+	mux.HandleFunc("GET /api/presign/avatar/{userId}", s.handlePresignAvatar)
+
+	// Reading progress
+	mux.HandleFunc("GET /api/progress", s.handleGetProgress)
+	mux.HandleFunc("POST /api/progress/{slug}", s.handleSetProgress)
+	mux.HandleFunc("DELETE /api/progress/{slug}", s.handleDeleteProgress)
+
+	srv := &http.Server{
+		Addr:         s.cfg.Addr,
+		Handler:      mux,
+		ReadTimeout:  15 * time.Second,
+		WriteTimeout: 60 * time.Second,
+		IdleTimeout:  60 * time.Second,
+	}
+
+	errCh := make(chan error, 1)
+	go func() { errCh <- srv.ListenAndServe() }()
+	s.deps.Log.Info("backend: HTTP server listening", "addr", s.cfg.Addr)
+
+	select {
+	case <-ctx.Done():
+		s.deps.Log.Info("backend: context cancelled, starting graceful shutdown")
+		shutCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+		defer cancel()
+		if err := srv.Shutdown(shutCtx); err != nil {
+			s.deps.Log.Error("backend: graceful shutdown failed", "err", err)
+			return err
+		}
+		s.deps.Log.Info("backend: shutdown complete")
+		return nil
+	case err := <-errCh:
+		return err
+	}
+}
+
+// ── Session cookie helpers ─────────────────────────────────────────────────────
+
+const sessionCookieName = "libnovel_session"
+
+func sessionID(r *http.Request) string {
+	c, err := r.Cookie(sessionCookieName)
+	if err != nil {
+		return ""
+	}
+	return c.Value
+}
+
+func newSessionID() (string, error) {
+	b := make([]byte, 16)
+	if _, err := rand.Read(b); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(b), nil
+}
+
+func ensureSession(w http.ResponseWriter, r *http.Request) string {
+	if id := sessionID(r); id != "" {
+		return id
+	}
+	id, err := newSessionID()
+	if err != nil {
+		id = fmt.Sprintf("fallback-%d", time.Now().UnixNano())
+	}
+	http.SetCookie(w, &http.Cookie{
+		Name:     sessionCookieName,
+		Value:    id,
+		Path:     "/",
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+		MaxAge:   365 * 24 * 60 * 60,
+	})
+	return id
+}
+
+// ── Utility helpers ────────────────────────────────────────────────────────────
+
+// writeJSON writes v as a JSON response with status code. Status 0 → 200.
+func writeJSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	if status != 0 {
+		w.WriteHeader(status)
+	}
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+// jsonError writes a JSON error body and the given status code.
+func jsonError(w http.ResponseWriter, status int, msg string) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(map[string]string{"error": msg})
+}
+
+// voices returns the list of available Kokoro voices. On the first call it
+// fetches from the Kokoro service and caches the result. Falls back to the
+// hardcoded list on error.
+func (s *Server) voices(ctx context.Context) []string {
+	s.voiceMu.RLock()
+	cached := s.cachedVoices
+	s.voiceMu.RUnlock()
+	if len(cached) > 0 {
+		return cached
+	}
+
+	if s.deps.Kokoro == nil {
+		return kokoroVoices
+	}
+
+	fetchCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
+	defer cancel()
+	list, err := s.deps.Kokoro.ListVoices(fetchCtx)
+	if err != nil || len(list) == 0 {
+		s.deps.Log.Warn("backend: could not fetch kokoro voices, using built-in list", "err", err)
+		return kokoroVoices
+	}
+
+	s.voiceMu.Lock()
+	s.cachedVoices = list
+	s.voiceMu.Unlock()
+	s.deps.Log.Info("backend: fetched kokoro voices", "count", len(list))
+	return list
+}
+
+// handleHealth handles GET /health.
+func (s *Server) handleHealth(w http.ResponseWriter, _ *http.Request) {
+	writeJSON(w, 0, map[string]string{
+		"status":  "ok",
+		"version": s.cfg.Version,
+		"commit":  s.cfg.Commit,
+	})
+}
+
+// handleVersion handles GET /api/version.
+func (s *Server) handleVersion(w http.ResponseWriter, _ *http.Request) {
+	writeJSON(w, 0, map[string]string{
+		"version": s.cfg.Version,
+		"commit":  s.cfg.Commit,
+	})
+}

backend/internal/bookstore/bookstore.go

@@ -0,0 +1,137 @@
+// Package bookstore defines the segregated read/write interfaces for book,
+// chapter, ranking, progress, audio, and presign data.
+//
+// Interface segregation:
+//   - BookWriter   — used by the runner to persist scraped data.
+//   - BookReader   — used by the backend to serve book/chapter data.
+//   - RankingStore — used by both runner (write) and backend (read).
+//   - PresignStore — used only by the backend for URL signing.
+//   - AudioStore   — used by the runner to store audio; backend for presign.
+//   - ProgressStore— used only by the backend for reading progress.
+//
+// Concrete implementations live in internal/storage.
+package bookstore
+
+import (
+	"context"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// BookWriter is the write side used by the runner after scraping a book.
+type BookWriter interface {
+	// WriteMetadata upserts all bibliographic fields for a book.
+	WriteMetadata(ctx context.Context, meta domain.BookMeta) error
+
+	// WriteChapter stores a fully-scraped chapter's text in MinIO and
+	// updates the chapters_idx record in PocketBase.
+	WriteChapter(ctx context.Context, slug string, chapter domain.Chapter) error
+
+	// WriteChapterRefs persists chapter metadata (number + title) into
+	// chapters_idx without fetching or storing chapter text.
+	WriteChapterRefs(ctx context.Context, slug string, refs []domain.ChapterRef) error
+
+	// ChapterExists returns true if the markdown object for ref already exists.
+	ChapterExists(ctx context.Context, slug string, ref domain.ChapterRef) bool
+}
+
+// BookReader is the read side used by the backend to serve content.
+type BookReader interface {
+	// ReadMetadata returns the metadata for slug.
+	// Returns (zero, false, nil) when not found.
+	ReadMetadata(ctx context.Context, slug string) (domain.BookMeta, bool, error)
+
+	// ListBooks returns all books sorted alphabetically by title.
+	ListBooks(ctx context.Context) ([]domain.BookMeta, error)
+
+	// LocalSlugs returns the set of slugs that have metadata stored.
+	LocalSlugs(ctx context.Context) (map[string]bool, error)
+
+	// MetadataMtime returns the Unix-second mtime of the metadata record, or 0.
+	MetadataMtime(ctx context.Context, slug string) int64
+
+	// ReadChapter returns the raw markdown for chapter number n.
+	ReadChapter(ctx context.Context, slug string, n int) (string, error)
+
+	// ListChapters returns all stored chapters for slug, sorted by number.
+	ListChapters(ctx context.Context, slug string) ([]domain.ChapterInfo, error)
+
+	// CountChapters returns the count of stored chapters.
+	CountChapters(ctx context.Context, slug string) int
+
+	// ReindexChapters rebuilds chapters_idx from MinIO objects for slug.
+	ReindexChapters(ctx context.Context, slug string) (int, error)
+}
+
+// RankingStore covers ranking reads and writes.
+type RankingStore interface {
+	// WriteRankingItem upserts a single ranking entry (keyed on Slug).
+	WriteRankingItem(ctx context.Context, item domain.RankingItem) error
+
+	// ReadRankingItems returns all ranking items sorted by rank ascending.
+	ReadRankingItems(ctx context.Context) ([]domain.RankingItem, error)
+
+	// RankingFreshEnough returns true when ranking rows exist and the most
+	// recent Updated timestamp is within maxAge.
+	RankingFreshEnough(ctx context.Context, maxAge time.Duration) (bool, error)
+}
+
+// AudioStore covers audio object storage (runner writes; backend reads).
+type AudioStore interface {
+	// AudioObjectKey returns the MinIO object key for a cached audio file.
+	AudioObjectKey(slug string, n int, voice string) string
+
+	// AudioExists returns true when the audio object is present in MinIO.
+	AudioExists(ctx context.Context, key string) bool
+
+	// PutAudio stores raw audio bytes under the given MinIO object key.
+	PutAudio(ctx context.Context, key string, data []byte) error
+}
+
+// PresignStore generates short-lived URLs — used exclusively by the backend.
+type PresignStore interface {
+	// PresignChapter returns a presigned GET URL for a chapter markdown object.
+	PresignChapter(ctx context.Context, slug string, n int, expires time.Duration) (string, error)
+
+	// PresignAudio returns a presigned GET URL for an audio object.
+	PresignAudio(ctx context.Context, key string, expires time.Duration) (string, error)
+
+	// PresignAvatarUpload returns a short-lived presigned PUT URL for uploading
+	// an avatar image. ext should be "jpg", "png", or "webp".
+	PresignAvatarUpload(ctx context.Context, userID, ext string) (uploadURL, key string, err error)
+
+	// PresignAvatarURL returns a presigned GET URL for a user's avatar.
+	// Returns ("", false, nil) when no avatar exists.
+	PresignAvatarURL(ctx context.Context, userID string) (string, bool, error)
+
+	// DeleteAvatar removes all avatar objects for a user.
+	DeleteAvatar(ctx context.Context, userID string) error
+}
+
+// ProgressStore covers per-session reading progress — backend only.
+type ProgressStore interface {
+	// GetProgress returns the reading progress for the given session + slug.
+	GetProgress(ctx context.Context, sessionID, slug string) (domain.ReadingProgress, bool)
+
+	// SetProgress saves or updates reading progress.
+	SetProgress(ctx context.Context, sessionID string, p domain.ReadingProgress) error
+
+	// AllProgress returns all progress entries for a session.
+	AllProgress(ctx context.Context, sessionID string) ([]domain.ReadingProgress, error)
+
+	// DeleteProgress removes progress for a specific slug.
+	DeleteProgress(ctx context.Context, sessionID, slug string) error
+}
+
+// BrowseStore covers browse page snapshot storage.
+// The runner writes snapshots; the backend reads them.
+type BrowseStore interface {
+	// PutBrowsePage stores a raw JSON snapshot for a browse page.
+	// genre, sort, status, novelType and page identify the page.
+	PutBrowsePage(ctx context.Context, genre, sort, status, novelType string, page int, data []byte) error
+
+	// GetBrowsePage retrieves a raw JSON snapshot. Returns (nil, false, nil)
+	// when no snapshot exists for the given parameters.
+	GetBrowsePage(ctx context.Context, genre, sort, status, novelType string, page int) ([]byte, bool, error)
+}

backend/internal/bookstore/bookstore_test.go

@@ -0,0 +1,138 @@
+package bookstore_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/bookstore"
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// ── Mock that satisfies all bookstore interfaces ──────────────────────────────
+
+type mockStore struct{}
+
+// BookWriter
+func (m *mockStore) WriteMetadata(_ context.Context, _ domain.BookMeta) error         { return nil }
+func (m *mockStore) WriteChapter(_ context.Context, _ string, _ domain.Chapter) error { return nil }
+func (m *mockStore) WriteChapterRefs(_ context.Context, _ string, _ []domain.ChapterRef) error {
+	return nil
+}
+func (m *mockStore) ChapterExists(_ context.Context, _ string, _ domain.ChapterRef) bool {
+	return false
+}
+
+// BookReader
+func (m *mockStore) ReadMetadata(_ context.Context, _ string) (domain.BookMeta, bool, error) {
+	return domain.BookMeta{}, false, nil
+}
+func (m *mockStore) ListBooks(_ context.Context) ([]domain.BookMeta, error) { return nil, nil }
+func (m *mockStore) LocalSlugs(_ context.Context) (map[string]bool, error) {
+	return map[string]bool{}, nil
+}
+func (m *mockStore) MetadataMtime(_ context.Context, _ string) int64 { return 0 }
+func (m *mockStore) ReadChapter(_ context.Context, _ string, _ int) (string, error) {
+	return "", nil
+}
+func (m *mockStore) ListChapters(_ context.Context, _ string) ([]domain.ChapterInfo, error) {
+	return nil, nil
+}
+func (m *mockStore) CountChapters(_ context.Context, _ string) int            { return 0 }
+func (m *mockStore) ReindexChapters(_ context.Context, _ string) (int, error) { return 0, nil }
+
+// RankingStore
+func (m *mockStore) WriteRankingItem(_ context.Context, _ domain.RankingItem) error { return nil }
+func (m *mockStore) ReadRankingItems(_ context.Context) ([]domain.RankingItem, error) {
+	return nil, nil
+}
+func (m *mockStore) RankingFreshEnough(_ context.Context, _ time.Duration) (bool, error) {
+	return false, nil
+}
+
+// AudioStore
+func (m *mockStore) AudioObjectKey(_ string, _ int, _ string) string      { return "" }
+func (m *mockStore) AudioExists(_ context.Context, _ string) bool         { return false }
+func (m *mockStore) PutAudio(_ context.Context, _ string, _ []byte) error { return nil }
+
+// PresignStore
+func (m *mockStore) PresignChapter(_ context.Context, _ string, _ int, _ time.Duration) (string, error) {
+	return "", nil
+}
+func (m *mockStore) PresignAudio(_ context.Context, _ string, _ time.Duration) (string, error) {
+	return "", nil
+}
+func (m *mockStore) PresignAvatarUpload(_ context.Context, _, _ string) (string, string, error) {
+	return "", "", nil
+}
+func (m *mockStore) PresignAvatarURL(_ context.Context, _ string) (string, bool, error) {
+	return "", false, nil
+}
+func (m *mockStore) DeleteAvatar(_ context.Context, _ string) error { return nil }
+
+// ProgressStore
+func (m *mockStore) GetProgress(_ context.Context, _, _ string) (domain.ReadingProgress, bool) {
+	return domain.ReadingProgress{}, false
+}
+func (m *mockStore) SetProgress(_ context.Context, _ string, _ domain.ReadingProgress) error {
+	return nil
+}
+func (m *mockStore) AllProgress(_ context.Context, _ string) ([]domain.ReadingProgress, error) {
+	return nil, nil
+}
+func (m *mockStore) DeleteProgress(_ context.Context, _, _ string) error { return nil }
+
+// ── Compile-time interface satisfaction ───────────────────────────────────────
+
+var _ bookstore.BookWriter = (*mockStore)(nil)
+var _ bookstore.BookReader = (*mockStore)(nil)
+var _ bookstore.RankingStore = (*mockStore)(nil)
+var _ bookstore.AudioStore = (*mockStore)(nil)
+var _ bookstore.PresignStore = (*mockStore)(nil)
+var _ bookstore.ProgressStore = (*mockStore)(nil)
+
+// ── Behavioural tests ─────────────────────────────────────────────────────────
+
+func TestBookWriter_WriteMetadata_ReturnsNilError(t *testing.T) {
+	var w bookstore.BookWriter = &mockStore{}
+	if err := w.WriteMetadata(context.Background(), domain.BookMeta{Slug: "test"}); err != nil {
+		t.Errorf("unexpected error: %v", err)
+	}
+}
+
+func TestBookReader_ReadMetadata_NotFound(t *testing.T) {
+	var r bookstore.BookReader = &mockStore{}
+	_, found, err := r.ReadMetadata(context.Background(), "unknown")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if found {
+		t.Error("expected not found")
+	}
+}
+
+func TestRankingStore_RankingFreshEnough_ReturnsFalse(t *testing.T) {
+	var s bookstore.RankingStore = &mockStore{}
+	fresh, err := s.RankingFreshEnough(context.Background(), time.Hour)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if fresh {
+		t.Error("expected false")
+	}
+}
+
+func TestAudioStore_AudioExists_ReturnsFalse(t *testing.T) {
+	var s bookstore.AudioStore = &mockStore{}
+	if s.AudioExists(context.Background(), "audio/slug/1/af_bella.mp3") {
+		t.Error("expected false")
+	}
+}
+
+func TestProgressStore_GetProgress_NotFound(t *testing.T) {
+	var s bookstore.ProgressStore = &mockStore{}
+	_, found := s.GetProgress(context.Background(), "session-1", "slug")
+	if found {
+		t.Error("expected not found")
+	}
+}

backend/internal/browser/browser.go

@@ -0,0 +1,206 @@
+// Package browser provides a rate-limited HTTP client for web scraping.
+// The Client interface is the only thing the rest of the codebase depends on;
+// the concrete DirectClient can be swapped for any other implementation
+// (e.g. a Browserless-backed client) without touching callers.
+package browser
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"sync"
+	"time"
+)
+
+// ErrRateLimit is returned by GetContent when the server responds with 429.
+// It carries the suggested retry delay (from Retry-After header, or a default).
+var ErrRateLimit = errors.New("rate limited (429)")
+
+// RateLimitError wraps ErrRateLimit and carries the suggested wait duration.
+type RateLimitError struct {
+	// RetryAfter is how long the caller should wait before retrying.
+	// Derived from the Retry-After response header when present; otherwise a default.
+	RetryAfter time.Duration
+}
+
+func (e *RateLimitError) Error() string {
+	return fmt.Sprintf("rate limited (429): retry after %s", e.RetryAfter)
+}
+
+func (e *RateLimitError) Is(target error) bool { return target == ErrRateLimit }
+
+// defaultRateLimitDelay is used when the server returns 429 with no Retry-After header.
+const defaultRateLimitDelay = 60 * time.Second
+
+// Client is the interface used by scrapers to fetch raw page HTML.
+// Implementations must be safe for concurrent use.
+type Client interface {
+	// GetContent fetches the URL and returns the full response body as a string.
+	// It should respect the provided context for cancellation and timeouts.
+	GetContent(ctx context.Context, pageURL string) (string, error)
+}
+
+// Config holds tunable parameters for the direct HTTP client.
+type Config struct {
+	// MaxConcurrent limits the number of simultaneous in-flight requests.
+	// Defaults to 5 when 0.
+	MaxConcurrent int
+	// Timeout is the per-request deadline. Defaults to 90s when 0.
+	Timeout time.Duration
+	// ProxyURL is an optional outbound proxy, e.g. "http://user:pass@host:3128".
+	// Falls back to HTTP_PROXY / HTTPS_PROXY environment variables when empty.
+	ProxyURL string
+}
+
+// DirectClient is a plain net/http-based Client with a concurrency semaphore.
+type DirectClient struct {
+	http      *http.Client
+	semaphore chan struct{}
+}
+
+// NewDirectClient returns a DirectClient configured by cfg.
+func NewDirectClient(cfg Config) *DirectClient {
+	if cfg.MaxConcurrent <= 0 {
+		cfg.MaxConcurrent = 5
+	}
+	if cfg.Timeout <= 0 {
+		cfg.Timeout = 90 * time.Second
+	}
+
+	transport := &http.Transport{
+		MaxIdleConnsPerHost: cfg.MaxConcurrent * 2,
+		DisableCompression:  false,
+	}
+	if cfg.ProxyURL != "" {
+		proxyParsed, err := url.Parse(cfg.ProxyURL)
+		if err == nil {
+			transport.Proxy = http.ProxyURL(proxyParsed)
+		}
+	} else {
+		transport.Proxy = http.ProxyFromEnvironment
+	}
+
+	return &DirectClient{
+		http: &http.Client{
+			Transport: transport,
+			Timeout:   cfg.Timeout,
+		},
+		semaphore: make(chan struct{}, cfg.MaxConcurrent),
+	}
+}
+
+// GetContent fetches pageURL respecting the concurrency limit.
+func (c *DirectClient) GetContent(ctx context.Context, pageURL string) (string, error) {
+	// Acquire semaphore slot.
+	select {
+	case c.semaphore <- struct{}{}:
+	case <-ctx.Done():
+		return "", ctx.Err()
+	}
+	defer func() { <-c.semaphore }()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, pageURL, nil)
+	if err != nil {
+		return "", fmt.Errorf("browser: build request %s: %w", pageURL, err)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (compatible; libnovel-runner/2)")
+	req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
+	req.Header.Set("Accept-Language", "en-US,en;q=0.5")
+
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("browser: GET %s: %w", pageURL, err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusTooManyRequests {
+		delay := defaultRateLimitDelay
+		if ra := resp.Header.Get("Retry-After"); ra != "" {
+			if secs, err := strconv.Atoi(ra); err == nil && secs > 0 {
+				delay = time.Duration(secs) * time.Second
+			}
+		}
+		return "", &RateLimitError{RetryAfter: delay}
+	}
+
+	if resp.StatusCode >= 400 {
+		return "", fmt.Errorf("browser: GET %s returned %d", pageURL, resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("browser: read body %s: %w", pageURL, err)
+	}
+	return string(body), nil
+}
+
+// Do implements httputil.Client so DirectClient can be passed to RetryGet.
+func (c *DirectClient) Do(req *http.Request) (*http.Response, error) {
+	select {
+	case c.semaphore <- struct{}{}:
+	case <-req.Context().Done():
+		return nil, req.Context().Err()
+	}
+	defer func() { <-c.semaphore }()
+	return c.http.Do(req)
+}
+
+// ── Stub for testing ──────────────────────────────────────────────────────────
+
+// StubClient is a test double for Client. It returns pre-configured responses
+// keyed on URL. Calls to unknown URLs return an error.
+type StubClient struct {
+	mu      sync.Mutex
+	pages   map[string]string
+	errors  map[string]error
+	callLog []string
+}
+
+// NewStub creates a StubClient with no pages pre-loaded.
+func NewStub() *StubClient {
+	return &StubClient{
+		pages:  make(map[string]string),
+		errors: make(map[string]error),
+	}
+}
+
+// SetPage registers a URL → HTML body mapping.
+func (s *StubClient) SetPage(u, html string) {
+	s.mu.Lock()
+	s.pages[u] = html
+	s.mu.Unlock()
+}
+
+// SetError registers a URL → error mapping (returned instead of a body).
+func (s *StubClient) SetError(u string, err error) {
+	s.mu.Lock()
+	s.errors[u] = err
+	s.mu.Unlock()
+}
+
+// CallLog returns the ordered list of URLs that were requested.
+func (s *StubClient) CallLog() []string {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	out := make([]string, len(s.callLog))
+	copy(out, s.callLog)
+	return out
+}
+
+// GetContent returns the registered page or an error for the URL.
+func (s *StubClient) GetContent(_ context.Context, pageURL string) (string, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.callLog = append(s.callLog, pageURL)
+	if err, ok := s.errors[pageURL]; ok {
+		return "", err
+	}
+	if html, ok := s.pages[pageURL]; ok {
+		return html, nil
+	}
+	return "", fmt.Errorf("stub: no page registered for %q", pageURL)
+}

backend/internal/browser/browser_test.go

@@ -0,0 +1,141 @@
+package browser_test
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/browser"
+)
+
+func TestDirectClient_GetContent_Success(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("<html>hello</html>"))
+	}))
+	defer srv.Close()
+
+	c := browser.NewDirectClient(browser.Config{MaxConcurrent: 2, Timeout: 5 * time.Second})
+	body, err := c.GetContent(context.Background(), srv.URL)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if body != "<html>hello</html>" {
+		t.Errorf("want <html>hello</html>, got %q", body)
+	}
+}
+
+func TestDirectClient_GetContent_4xxReturnsError(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+	}))
+	defer srv.Close()
+
+	c := browser.NewDirectClient(browser.Config{})
+	_, err := c.GetContent(context.Background(), srv.URL)
+	if err == nil {
+		t.Fatal("expected error for 404")
+	}
+}
+
+func TestDirectClient_SemaphoreBlocksConcurrency(t *testing.T) {
+	const maxConcurrent = 2
+	var inflight atomic.Int32
+	var peak atomic.Int32
+
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		n := inflight.Add(1)
+		if int(n) > int(peak.Load()) {
+			peak.Store(n)
+		}
+		time.Sleep(20 * time.Millisecond)
+		inflight.Add(-1)
+		w.Write([]byte("ok"))
+	}))
+	defer srv.Close()
+
+	c := browser.NewDirectClient(browser.Config{MaxConcurrent: maxConcurrent, Timeout: 5 * time.Second})
+
+	var wg sync.WaitGroup
+	for i := 0; i < 8; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			c.GetContent(context.Background(), srv.URL)
+		}()
+	}
+	wg.Wait()
+
+	if int(peak.Load()) > maxConcurrent {
+		t.Errorf("concurrent requests exceeded limit: peak=%d, limit=%d", peak.Load(), maxConcurrent)
+	}
+}
+
+func TestDirectClient_ContextCancel(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		time.Sleep(200 * time.Millisecond)
+		w.Write([]byte("ok"))
+	}))
+	defer srv.Close()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // cancel before making the request
+
+	c := browser.NewDirectClient(browser.Config{})
+	_, err := c.GetContent(ctx, srv.URL)
+	if err == nil {
+		t.Fatal("expected context cancellation error")
+	}
+}
+
+// ── StubClient ────────────────────────────────────────────────────────────────
+
+func TestStubClient_ReturnsRegisteredPage(t *testing.T) {
+	stub := browser.NewStub()
+	stub.SetPage("http://example.com/page1", "<html>page1</html>")
+
+	body, err := stub.GetContent(context.Background(), "http://example.com/page1")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if body != "<html>page1</html>" {
+		t.Errorf("want page1 html, got %q", body)
+	}
+}
+
+func TestStubClient_ReturnsRegisteredError(t *testing.T) {
+	stub := browser.NewStub()
+	want := errors.New("network failure")
+	stub.SetError("http://example.com/bad", want)
+
+	_, err := stub.GetContent(context.Background(), "http://example.com/bad")
+	if err == nil {
+		t.Fatal("expected error")
+	}
+}
+
+func TestStubClient_UnknownURLReturnsError(t *testing.T) {
+	stub := browser.NewStub()
+	_, err := stub.GetContent(context.Background(), "http://unknown.example.com/")
+	if err == nil {
+		t.Fatal("expected error for unknown URL")
+	}
+}
+
+func TestStubClient_CallLog(t *testing.T) {
+	stub := browser.NewStub()
+	stub.SetPage("http://example.com/a", "a")
+	stub.SetPage("http://example.com/b", "b")
+
+	stub.GetContent(context.Background(), "http://example.com/a")
+	stub.GetContent(context.Background(), "http://example.com/b")
+
+	log := stub.CallLog()
+	if len(log) != 2 || log[0] != "http://example.com/a" || log[1] != "http://example.com/b" {
+		t.Errorf("unexpected call log: %v", log)
+	}
+}

backend/internal/config/config.go

@@ -0,0 +1,186 @@
+// Package config loads all service configuration from environment variables.
+// Both the runner and backend binaries call config.Load() at startup; each
+// uses only the sub-struct relevant to it.
+//
+// Every field has a documented default so the service starts sensibly without
+// any environment configuration (useful for local development).
+package config
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// PocketBase holds connection settings for the remote PocketBase instance.
+type PocketBase struct {
+	// URL is the base URL of the PocketBase instance, e.g. https://pb.libnovel.cc
+	URL string
+	// AdminEmail is the admin account email used for API authentication.
+	AdminEmail string
+	// AdminPassword is the admin account password.
+	AdminPassword string
+}
+
+// MinIO holds connection settings for the remote MinIO / S3-compatible store.
+type MinIO struct {
+	// Endpoint is the host:port of the MinIO S3 API, e.g. storage.libnovel.cc:443
+	Endpoint string
+	// PublicEndpoint is the browser-visible endpoint used for presigned URLs.
+	// Falls back to Endpoint when empty.
+	PublicEndpoint string
+	// AccessKey is the MinIO access key.
+	AccessKey string
+	// SecretKey is the MinIO secret key.
+	SecretKey string
+	// UseSSL enables TLS for the internal MinIO connection.
+	UseSSL bool
+	// PublicUseSSL enables TLS for presigned URL generation.
+	PublicUseSSL bool
+	// BucketChapters is the bucket that holds chapter markdown objects.
+	BucketChapters string
+	// BucketAudio is the bucket that holds generated audio MP3 objects.
+	BucketAudio string
+	// BucketAvatars is the bucket that holds user avatar images.
+	BucketAvatars string
+	// BucketBrowse is the bucket that holds cached browse page snapshots (JSON).
+	BucketBrowse string
+}
+
+// Kokoro holds connection settings for the Kokoro-FastAPI TTS service.
+type Kokoro struct {
+	// URL is the base URL of the Kokoro service, e.g. https://kokoro.libnovel.cc
+	// An empty string disables TTS generation.
+	URL string
+	// DefaultVoice is the voice used when none is specified.
+	DefaultVoice string
+}
+
+// HTTP holds settings for the HTTP server (backend only).
+type HTTP struct {
+	// Addr is the listen address, e.g. ":8080"
+	Addr string
+}
+
+// Runner holds settings specific to the runner/worker binary.
+type Runner struct {
+	// PollInterval is how often the runner checks PocketBase for pending tasks.
+	PollInterval time.Duration
+	// MaxConcurrentScrape limits simultaneous book-scrape goroutines.
+	MaxConcurrentScrape int
+	// MaxConcurrentAudio limits simultaneous audio-generation goroutines.
+	MaxConcurrentAudio int
+	// WorkerID is a unique identifier for this runner instance.
+	// Defaults to the system hostname.
+	WorkerID string
+	// Workers is the number of chapter-scraping goroutines per book.
+	Workers int
+	// Timeout is the per-request HTTP timeout for scraping.
+	Timeout time.Duration
+	// ProxyURL is an optional outbound proxy for scraper HTTP requests.
+	ProxyURL string
+}
+
+// Config is the top-level configuration struct consumed by both binaries.
+type Config struct {
+	PocketBase PocketBase
+	MinIO      MinIO
+	Kokoro     Kokoro
+	HTTP       HTTP
+	Runner     Runner
+	// LogLevel is one of "debug", "info", "warn", "error".
+	LogLevel string
+}
+
+// Load reads all configuration from environment variables and returns a
+// populated Config. Missing variables fall back to documented defaults.
+func Load() Config {
+	workerID, _ := os.Hostname()
+	if workerID == "" {
+		workerID = "runner-default"
+	}
+
+	return Config{
+		LogLevel: envOr("LOG_LEVEL", "info"),
+
+		PocketBase: PocketBase{
+			URL:           envOr("POCKETBASE_URL", "http://localhost:8090"),
+			AdminEmail:    envOr("POCKETBASE_ADMIN_EMAIL", "admin@libnovel.local"),
+			AdminPassword: envOr("POCKETBASE_ADMIN_PASSWORD", "changeme123"),
+		},
+
+		MinIO: MinIO{
+			Endpoint:       envOr("MINIO_ENDPOINT", "localhost:9000"),
+			PublicEndpoint: envOr("MINIO_PUBLIC_ENDPOINT", ""),
+			AccessKey:      envOr("MINIO_ACCESS_KEY", "admin"),
+			SecretKey:      envOr("MINIO_SECRET_KEY", "changeme123"),
+			UseSSL:         envBool("MINIO_USE_SSL", false),
+			PublicUseSSL:   envBool("MINIO_PUBLIC_USE_SSL", true),
+			BucketChapters: envOr("MINIO_BUCKET_CHAPTERS", "libnovel-chapters"),
+			BucketAudio:    envOr("MINIO_BUCKET_AUDIO", "libnovel-audio"),
+			BucketAvatars:  envOr("MINIO_BUCKET_AVATARS", "libnovel-avatars"),
+			BucketBrowse:   envOr("MINIO_BUCKET_BROWSE", "libnovel-browse"),
+		},
+
+		Kokoro: Kokoro{
+			URL:          envOr("KOKORO_URL", ""),
+			DefaultVoice: envOr("KOKORO_VOICE", "af_bella"),
+		},
+
+		HTTP: HTTP{
+			Addr: envOr("BACKEND_HTTP_ADDR", ":8080"),
+		},
+
+		Runner: Runner{
+			PollInterval:        envDuration("RUNNER_POLL_INTERVAL", 30*time.Second),
+			MaxConcurrentScrape: envInt("RUNNER_MAX_CONCURRENT_SCRAPE", 1),
+			MaxConcurrentAudio:  envInt("RUNNER_MAX_CONCURRENT_AUDIO", 1),
+			WorkerID:            envOr("RUNNER_WORKER_ID", workerID),
+			Workers:             envInt("RUNNER_WORKERS", 0), // 0 → runtime.NumCPU()
+			Timeout:             envDuration("RUNNER_TIMEOUT", 90*time.Second),
+			ProxyURL:            envOr("SCRAPER_PROXY", ""),
+		},
+	}
+}
+
+// ── helpers ───────────────────────────────────────────────────────────────────
+
+func envOr(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}
+
+func envBool(key string, fallback bool) bool {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	return strings.ToLower(v) == "true"
+}
+
+func envInt(key string, fallback int) int {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	n, err := strconv.Atoi(v)
+	if err != nil || n < 0 {
+		return fallback
+	}
+	return n
+}
+
+func envDuration(key string, fallback time.Duration) time.Duration {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	d, err := time.ParseDuration(v)
+	if err != nil {
+		return fallback
+	}
+	return d
+}

backend/internal/config/config_test.go

@@ -0,0 +1,127 @@
+package config_test
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/config"
+)
+
+func TestLoad_Defaults(t *testing.T) {
+	// Unset all relevant vars so we test pure defaults.
+	unset := []string{
+		"LOG_LEVEL",
+		"POCKETBASE_URL", "POCKETBASE_ADMIN_EMAIL", "POCKETBASE_ADMIN_PASSWORD",
+		"MINIO_ENDPOINT", "MINIO_PUBLIC_ENDPOINT", "MINIO_ACCESS_KEY", "MINIO_SECRET_KEY",
+		"MINIO_USE_SSL", "MINIO_PUBLIC_USE_SSL",
+		"MINIO_BUCKET_CHAPTERS", "MINIO_BUCKET_AUDIO", "MINIO_BUCKET_AVATARS",
+		"KOKORO_URL", "KOKORO_VOICE",
+		"BACKEND_HTTP_ADDR",
+		"RUNNER_POLL_INTERVAL", "RUNNER_MAX_CONCURRENT_SCRAPE", "RUNNER_MAX_CONCURRENT_AUDIO",
+		"RUNNER_WORKER_ID", "RUNNER_WORKERS", "RUNNER_TIMEOUT", "SCRAPER_PROXY",
+	}
+	for _, k := range unset {
+		t.Setenv(k, "")
+	}
+
+	cfg := config.Load()
+
+	if cfg.LogLevel != "info" {
+		t.Errorf("LogLevel: want info, got %q", cfg.LogLevel)
+	}
+	if cfg.PocketBase.URL != "http://localhost:8090" {
+		t.Errorf("PocketBase.URL: want http://localhost:8090, got %q", cfg.PocketBase.URL)
+	}
+	if cfg.MinIO.BucketChapters != "libnovel-chapters" {
+		t.Errorf("MinIO.BucketChapters: want libnovel-chapters, got %q", cfg.MinIO.BucketChapters)
+	}
+	if cfg.MinIO.UseSSL != false {
+		t.Errorf("MinIO.UseSSL: want false, got %v", cfg.MinIO.UseSSL)
+	}
+	if cfg.MinIO.PublicUseSSL != true {
+		t.Errorf("MinIO.PublicUseSSL: want true, got %v", cfg.MinIO.PublicUseSSL)
+	}
+	if cfg.Kokoro.DefaultVoice != "af_bella" {
+		t.Errorf("Kokoro.DefaultVoice: want af_bella, got %q", cfg.Kokoro.DefaultVoice)
+	}
+	if cfg.HTTP.Addr != ":8080" {
+		t.Errorf("HTTP.Addr: want :8080, got %q", cfg.HTTP.Addr)
+	}
+	if cfg.Runner.PollInterval != 30*time.Second {
+		t.Errorf("Runner.PollInterval: want 30s, got %v", cfg.Runner.PollInterval)
+	}
+	if cfg.Runner.MaxConcurrentScrape != 1 {
+		t.Errorf("Runner.MaxConcurrentScrape: want 1, got %d", cfg.Runner.MaxConcurrentScrape)
+	}
+	if cfg.Runner.MaxConcurrentAudio != 1 {
+		t.Errorf("Runner.MaxConcurrentAudio: want 1, got %d", cfg.Runner.MaxConcurrentAudio)
+	}
+}
+
+func TestLoad_EnvOverride(t *testing.T) {
+	t.Setenv("LOG_LEVEL", "debug")
+	t.Setenv("POCKETBASE_URL", "https://pb.libnovel.cc")
+	t.Setenv("MINIO_USE_SSL", "true")
+	t.Setenv("MINIO_PUBLIC_USE_SSL", "false")
+	t.Setenv("RUNNER_POLL_INTERVAL", "1m")
+	t.Setenv("RUNNER_MAX_CONCURRENT_SCRAPE", "5")
+	t.Setenv("RUNNER_WORKER_ID", "homelab-01")
+	t.Setenv("BACKEND_HTTP_ADDR", ":9090")
+	t.Setenv("KOKORO_URL", "https://kokoro.libnovel.cc")
+
+	cfg := config.Load()
+
+	if cfg.LogLevel != "debug" {
+		t.Errorf("LogLevel: want debug, got %q", cfg.LogLevel)
+	}
+	if cfg.PocketBase.URL != "https://pb.libnovel.cc" {
+		t.Errorf("PocketBase.URL: want https://pb.libnovel.cc, got %q", cfg.PocketBase.URL)
+	}
+	if !cfg.MinIO.UseSSL {
+		t.Error("MinIO.UseSSL: want true")
+	}
+	if cfg.MinIO.PublicUseSSL {
+		t.Error("MinIO.PublicUseSSL: want false")
+	}
+	if cfg.Runner.PollInterval != time.Minute {
+		t.Errorf("Runner.PollInterval: want 1m, got %v", cfg.Runner.PollInterval)
+	}
+	if cfg.Runner.MaxConcurrentScrape != 5 {
+		t.Errorf("Runner.MaxConcurrentScrape: want 5, got %d", cfg.Runner.MaxConcurrentScrape)
+	}
+	if cfg.Runner.WorkerID != "homelab-01" {
+		t.Errorf("Runner.WorkerID: want homelab-01, got %q", cfg.Runner.WorkerID)
+	}
+	if cfg.HTTP.Addr != ":9090" {
+		t.Errorf("HTTP.Addr: want :9090, got %q", cfg.HTTP.Addr)
+	}
+	if cfg.Kokoro.URL != "https://kokoro.libnovel.cc" {
+		t.Errorf("Kokoro.URL: want https://kokoro.libnovel.cc, got %q", cfg.Kokoro.URL)
+	}
+}
+
+func TestLoad_InvalidInt_FallsToDefault(t *testing.T) {
+	t.Setenv("RUNNER_MAX_CONCURRENT_SCRAPE", "notanumber")
+	cfg := config.Load()
+	if cfg.Runner.MaxConcurrentScrape != 1 {
+		t.Errorf("want default 1, got %d", cfg.Runner.MaxConcurrentScrape)
+	}
+}
+
+func TestLoad_InvalidDuration_FallsToDefault(t *testing.T) {
+	t.Setenv("RUNNER_POLL_INTERVAL", "notaduration")
+	cfg := config.Load()
+	if cfg.Runner.PollInterval != 30*time.Second {
+		t.Errorf("want default 30s, got %v", cfg.Runner.PollInterval)
+	}
+}
+
+func TestLoad_WorkerID_FallsToHostname(t *testing.T) {
+	t.Setenv("RUNNER_WORKER_ID", "")
+	cfg := config.Load()
+	host, _ := os.Hostname()
+	if host != "" && cfg.Runner.WorkerID != host {
+		t.Errorf("want hostname %q, got %q", host, cfg.Runner.WorkerID)
+	}
+}

backend/internal/domain/domain.go

@@ -0,0 +1,131 @@
+// Package domain contains the core value types shared across all packages
+// in this module. It has zero internal imports — only the standard library.
+// Every other package imports domain; domain imports nothing from this module.
+package domain
+
+import "time"
+
+// ── Book types ────────────────────────────────────────────────────────────────
+
+// BookMeta carries all bibliographic information about a novel.
+type BookMeta struct {
+	Slug          string   `json:"slug"`
+	Title         string   `json:"title"`
+	Author        string   `json:"author"`
+	Cover         string   `json:"cover,omitempty"`
+	Status        string   `json:"status,omitempty"`
+	Genres        []string `json:"genres,omitempty"`
+	Summary       string   `json:"summary,omitempty"`
+	TotalChapters int      `json:"total_chapters,omitempty"`
+	SourceURL     string   `json:"source_url"`
+	Ranking       int      `json:"ranking,omitempty"`
+}
+
+// CatalogueEntry is a lightweight book reference returned by catalogue pages.
+type CatalogueEntry struct {
+	Title string `json:"title"`
+	URL   string `json:"url"`
+}
+
+// ChapterRef is a reference to a single chapter returned by chapter-list pages.
+type ChapterRef struct {
+	Number int    `json:"number"`
+	Title  string `json:"title"`
+	URL    string `json:"url"`
+	Volume int    `json:"volume,omitempty"`
+}
+
+// Chapter contains the fully-extracted text of a single chapter.
+type Chapter struct {
+	Ref  ChapterRef `json:"ref"`
+	Text string     `json:"text"`
+}
+
+// RankingItem represents a single entry in the novel ranking list.
+type RankingItem struct {
+	Rank      int       `json:"rank"`
+	Slug      string    `json:"slug"`
+	Title     string    `json:"title"`
+	Author    string    `json:"author,omitempty"`
+	Cover     string    `json:"cover,omitempty"`
+	Status    string    `json:"status,omitempty"`
+	Genres    []string  `json:"genres,omitempty"`
+	SourceURL string    `json:"source_url,omitempty"`
+	Updated   time.Time `json:"updated,omitempty"`
+}
+
+// ── Storage record types ──────────────────────────────────────────────────────
+
+// ChapterInfo is a lightweight chapter descriptor stored in the index.
+type ChapterInfo struct {
+	Number int    `json:"number"`
+	Title  string `json:"title"`
+	Date   string `json:"date,omitempty"`
+}
+
+// ReadingProgress holds a single user's reading position for one book.
+type ReadingProgress struct {
+	Slug      string    `json:"slug"`
+	Chapter   int       `json:"chapter"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+// ── Task record types ─────────────────────────────────────────────────────────
+
+// TaskStatus enumerates the lifecycle states of any task.
+type TaskStatus string
+
+const (
+	TaskStatusPending   TaskStatus = "pending"
+	TaskStatusRunning   TaskStatus = "running"
+	TaskStatusDone      TaskStatus = "done"
+	TaskStatusFailed    TaskStatus = "failed"
+	TaskStatusCancelled TaskStatus = "cancelled"
+)
+
+// ScrapeTask represents a book-scraping job stored in PocketBase.
+type ScrapeTask struct {
+	ID              string     `json:"id"`
+	Kind            string     `json:"kind"`       // "catalogue" | "book" | "book_range"
+	TargetURL       string     `json:"target_url"` // non-empty for single-book tasks
+	FromChapter     int        `json:"from_chapter,omitempty"`
+	ToChapter       int        `json:"to_chapter,omitempty"`
+	WorkerID        string     `json:"worker_id,omitempty"`
+	Status          TaskStatus `json:"status"`
+	BooksFound      int        `json:"books_found"`
+	ChaptersScraped int        `json:"chapters_scraped"`
+	ChaptersSkipped int        `json:"chapters_skipped"`
+	Errors          int        `json:"errors"`
+	Started         time.Time  `json:"started"`
+	Finished        time.Time  `json:"finished,omitempty"`
+	ErrorMessage    string     `json:"error_message,omitempty"`
+}
+
+// ScrapeResult is the outcome reported by the runner after finishing a ScrapeTask.
+type ScrapeResult struct {
+	BooksFound      int    `json:"books_found"`
+	ChaptersScraped int    `json:"chapters_scraped"`
+	ChaptersSkipped int    `json:"chapters_skipped"`
+	Errors          int    `json:"errors"`
+	ErrorMessage    string `json:"error_message,omitempty"`
+}
+
+// AudioTask represents an audio-generation job stored in PocketBase.
+type AudioTask struct {
+	ID           string     `json:"id"`
+	CacheKey     string     `json:"cache_key"` // "slug/chapter/voice"
+	Slug         string     `json:"slug"`
+	Chapter      int        `json:"chapter"`
+	Voice        string     `json:"voice"`
+	WorkerID     string     `json:"worker_id,omitempty"`
+	Status       TaskStatus `json:"status"`
+	ErrorMessage string     `json:"error_message,omitempty"`
+	Started      time.Time  `json:"started"`
+	Finished     time.Time  `json:"finished,omitempty"`
+}
+
+// AudioResult is the outcome reported by the runner after finishing an AudioTask.
+type AudioResult struct {
+	ObjectKey    string `json:"object_key,omitempty"`
+	ErrorMessage string `json:"error_message,omitempty"`
+}

backend/internal/domain/domain_test.go

@@ -0,0 +1,104 @@
+package domain_test
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+)
+
+func TestBookMeta_JSONRoundtrip(t *testing.T) {
+	orig := domain.BookMeta{
+		Slug:          "a-great-novel",
+		Title:         "A Great Novel",
+		Author:        "Jane Doe",
+		Cover:         "https://example.com/cover.jpg",
+		Status:        "Ongoing",
+		Genres:        []string{"Fantasy", "Action"},
+		Summary:       "A thrilling tale.",
+		TotalChapters: 120,
+		SourceURL:     "https://novelfire.net/book/a-great-novel",
+		Ranking:       3,
+	}
+
+	b, err := json.Marshal(orig)
+	if err != nil {
+		t.Fatalf("marshal: %v", err)
+	}
+	var got domain.BookMeta
+	if err := json.Unmarshal(b, &got); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if got.Slug != orig.Slug {
+		t.Errorf("Slug: want %q, got %q", orig.Slug, got.Slug)
+	}
+	if got.TotalChapters != orig.TotalChapters {
+		t.Errorf("TotalChapters: want %d, got %d", orig.TotalChapters, got.TotalChapters)
+	}
+	if len(got.Genres) != len(orig.Genres) {
+		t.Errorf("Genres len: want %d, got %d", len(orig.Genres), len(got.Genres))
+	}
+}
+
+func TestChapterRef_JSONRoundtrip(t *testing.T) {
+	orig := domain.ChapterRef{Number: 42, Title: "The Battle", URL: "https://example.com/ch-42", Volume: 2}
+	b, _ := json.Marshal(orig)
+	var got domain.ChapterRef
+	json.Unmarshal(b, &got)
+	if got != orig {
+		t.Errorf("want %+v, got %+v", orig, got)
+	}
+}
+
+func TestRankingItem_JSONRoundtrip(t *testing.T) {
+	now := time.Now().Truncate(time.Second)
+	orig := domain.RankingItem{
+		Rank:      1,
+		Slug:      "top-novel",
+		Title:     "Top Novel",
+		SourceURL: "https://novelfire.net/book/top-novel",
+		Updated:   now,
+	}
+	b, _ := json.Marshal(orig)
+	var got domain.RankingItem
+	json.Unmarshal(b, &got)
+	if got.Rank != orig.Rank || got.Slug != orig.Slug {
+		t.Errorf("want %+v, got %+v", orig, got)
+	}
+}
+
+func TestScrapeResult_JSONRoundtrip(t *testing.T) {
+	orig := domain.ScrapeResult{BooksFound: 10, ChaptersScraped: 200, ChaptersSkipped: 5, Errors: 1, ErrorMessage: "one error"}
+	b, _ := json.Marshal(orig)
+	var got domain.ScrapeResult
+	json.Unmarshal(b, &got)
+	if got != orig {
+		t.Errorf("want %+v, got %+v", orig, got)
+	}
+}
+
+func TestAudioResult_JSONRoundtrip(t *testing.T) {
+	orig := domain.AudioResult{ObjectKey: "audio/slug/1/af_bella.mp3"}
+	b, _ := json.Marshal(orig)
+	var got domain.AudioResult
+	json.Unmarshal(b, &got)
+	if got != orig {
+		t.Errorf("want %+v, got %+v", orig, got)
+	}
+}
+
+func TestTaskStatus_Values(t *testing.T) {
+	cases := []domain.TaskStatus{
+		domain.TaskStatusPending,
+		domain.TaskStatusRunning,
+		domain.TaskStatusDone,
+		domain.TaskStatusFailed,
+		domain.TaskStatusCancelled,
+	}
+	for _, s := range cases {
+		if s == "" {
+			t.Errorf("TaskStatus constant must not be empty")
+		}
+	}
+}

backend/internal/httputil/httputil.go

@@ -0,0 +1,124 @@
+// Package httputil provides shared HTTP helpers used by both the runner and
+// backend binaries. It has no imports from this module — only the standard
+// library — so it is safe to import from anywhere in the dependency graph.
+package httputil
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+// Client is the minimal interface for making HTTP GET requests.
+// *http.Client satisfies this interface.
+type Client interface {
+	Do(req *http.Request) (*http.Response, error)
+}
+
+// ErrMaxRetries is returned when RetryGet exhausts all attempts.
+var ErrMaxRetries = errors.New("httputil: max retries exceeded")
+
+// errClientError is returned by doGet for 4xx responses; it signals that the
+// request should NOT be retried (the client is at fault).
+var errClientError = errors.New("httputil: client error")
+
+// RetryGet fetches url using client, retrying on network errors or 5xx
+// responses with exponential backoff. It returns the full response body as a
+// string on success.
+//
+//   - maxAttempts: total number of attempts (must be >= 1)
+//   - baseDelay:   initial wait before the second attempt; doubles each retry
+func RetryGet(ctx context.Context, client Client, url string, maxAttempts int, baseDelay time.Duration) (string, error) {
+	if maxAttempts < 1 {
+		maxAttempts = 1
+	}
+	delay := baseDelay
+
+	var lastErr error
+	for attempt := 0; attempt < maxAttempts; attempt++ {
+		if attempt > 0 {
+			select {
+			case <-ctx.Done():
+				return "", ctx.Err()
+			case <-time.After(delay):
+			}
+			delay *= 2
+		}
+
+		body, err := doGet(ctx, client, url)
+		if err == nil {
+			return body, nil
+		}
+		lastErr = err
+
+		// Do not retry on context cancellation.
+		if ctx.Err() != nil {
+			return "", ctx.Err()
+		}
+		// Do not retry on 4xx — the client is at fault.
+		if errors.Is(err, errClientError) {
+			return "", err
+		}
+	}
+
+	return "", fmt.Errorf("%w after %d attempts: %w", ErrMaxRetries, maxAttempts, lastErr)
+}
+
+func doGet(ctx context.Context, client Client, url string) (string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return "", fmt.Errorf("build request: %w", err)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (compatible; libnovel-runner/2)")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("GET %s: %w", url, err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 500 {
+		return "", fmt.Errorf("GET %s: server error %d", url, resp.StatusCode)
+	}
+	if resp.StatusCode >= 400 {
+		return "", fmt.Errorf("%w: GET %s: client error %d", errClientError, url, resp.StatusCode)
+	}
+
+	raw, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("read body %s: %w", url, err)
+	}
+	return string(raw), nil
+}
+
+// WriteJSON writes v as JSON to w with the given HTTP status code and sets the
+// Content-Type header to application/json.
+func WriteJSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+// WriteError writes a JSON error object {"error": msg} with the given status.
+func WriteError(w http.ResponseWriter, status int, msg string) {
+	WriteJSON(w, status, map[string]string{"error": msg})
+}
+
+// maxBodyBytes is the limit applied by DecodeJSON to prevent unbounded reads.
+const maxBodyBytes = 1 << 20 // 1 MiB
+
+// DecodeJSON decodes a JSON request body into v. It enforces a 1 MiB size
+// limit and returns a descriptive error on any failure.
+func DecodeJSON(r *http.Request, v any) error {
+	r.Body = http.MaxBytesReader(nil, r.Body, maxBodyBytes)
+	dec := json.NewDecoder(r.Body)
+	dec.DisallowUnknownFields()
+	if err := dec.Decode(v); err != nil {
+		return fmt.Errorf("decode JSON body: %w", err)
+	}
+	return nil
+}

backend/internal/httputil/httputil_test.go

@@ -0,0 +1,181 @@
+package httputil_test
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/httputil"
+)
+
+// ── RetryGet ──────────────────────────────────────────────────────────────────
+
+func TestRetryGet_ImmediateSuccess(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("hello"))
+	}))
+	defer srv.Close()
+
+	body, err := httputil.RetryGet(context.Background(), srv.Client(), srv.URL, 3, time.Millisecond)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if body != "hello" {
+		t.Errorf("want hello, got %q", body)
+	}
+}
+
+func TestRetryGet_RetriesOn5xx(t *testing.T) {
+	calls := 0
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calls++
+		if calls < 3 {
+			w.WriteHeader(http.StatusServiceUnavailable)
+			return
+		}
+		w.Write([]byte("ok"))
+	}))
+	defer srv.Close()
+
+	body, err := httputil.RetryGet(context.Background(), srv.Client(), srv.URL, 5, time.Millisecond)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if body != "ok" {
+		t.Errorf("want ok, got %q", body)
+	}
+	if calls != 3 {
+		t.Errorf("want 3 calls, got %d", calls)
+	}
+}
+
+func TestRetryGet_MaxAttemptsExceeded(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+	defer srv.Close()
+
+	_, err := httputil.RetryGet(context.Background(), srv.Client(), srv.URL, 3, time.Millisecond)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+}
+
+func TestRetryGet_ContextCancelDuringBackoff(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+	defer srv.Close()
+
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// Cancel after first failed attempt hits the backoff wait.
+	go func() { time.Sleep(5 * time.Millisecond); cancel() }()
+
+	_, err := httputil.RetryGet(ctx, srv.Client(), srv.URL, 10, 500*time.Millisecond)
+	if err == nil {
+		t.Fatal("expected context cancellation error")
+	}
+}
+
+func TestRetryGet_NoRetryOn4xx(t *testing.T) {
+	calls := 0
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calls++
+		w.WriteHeader(http.StatusNotFound)
+	}))
+	defer srv.Close()
+
+	_, err := httputil.RetryGet(context.Background(), srv.Client(), srv.URL, 5, time.Millisecond)
+	if err == nil {
+		t.Fatal("expected error for 404")
+	}
+	// 4xx is NOT retried — should be exactly 1 call.
+	if calls != 1 {
+		t.Errorf("want 1 call for 4xx, got %d", calls)
+	}
+}
+
+// ── WriteJSON ─────────────────────────────────────────────────────────────────
+
+func TestWriteJSON_SetsHeadersAndStatus(t *testing.T) {
+	rr := httptest.NewRecorder()
+	httputil.WriteJSON(rr, http.StatusCreated, map[string]string{"key": "val"})
+
+	if rr.Code != http.StatusCreated {
+		t.Errorf("status: want 201, got %d", rr.Code)
+	}
+	if ct := rr.Header().Get("Content-Type"); ct != "application/json" {
+		t.Errorf("Content-Type: want application/json, got %q", ct)
+	}
+	var got map[string]string
+	if err := json.NewDecoder(rr.Body).Decode(&got); err != nil {
+		t.Fatalf("decode body: %v", err)
+	}
+	if got["key"] != "val" {
+		t.Errorf("body key: want val, got %q", got["key"])
+	}
+}
+
+// ── WriteError ────────────────────────────────────────────────────────────────
+
+func TestWriteError_Format(t *testing.T) {
+	rr := httptest.NewRecorder()
+	httputil.WriteError(rr, http.StatusBadRequest, "bad input")
+
+	if rr.Code != http.StatusBadRequest {
+		t.Errorf("status: want 400, got %d", rr.Code)
+	}
+	var got map[string]string
+	json.NewDecoder(rr.Body).Decode(&got)
+	if got["error"] != "bad input" {
+		t.Errorf("error field: want bad input, got %q", got["error"])
+	}
+}
+
+// ── DecodeJSON ────────────────────────────────────────────────────────────────
+
+func TestDecodeJSON_HappyPath(t *testing.T) {
+	body := `{"name":"test","value":42}`
+	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+
+	var payload struct {
+		Name  string `json:"name"`
+		Value int    `json:"value"`
+	}
+	if err := httputil.DecodeJSON(req, &payload); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if payload.Name != "test" || payload.Value != 42 {
+		t.Errorf("unexpected payload: %+v", payload)
+	}
+}
+
+func TestDecodeJSON_UnknownFieldReturnsError(t *testing.T) {
+	body := `{"name":"test","unknown_field":"boom"}`
+	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(body))
+
+	var payload struct {
+		Name string `json:"name"`
+	}
+	if err := httputil.DecodeJSON(req, &payload); err == nil {
+		t.Fatal("expected error for unknown field, got nil")
+	}
+}
+
+func TestDecodeJSON_BodyTooLarge(t *testing.T) {
+	// Build a body > 1 MiB.
+	big := bytes.Repeat([]byte("a"), 2<<20)
+	req := httptest.NewRequest(http.MethodPost, "/", bytes.NewReader(big))
+
+	var payload map[string]any
+	if err := httputil.DecodeJSON(req, &payload); err == nil {
+		t.Fatal("expected error for oversized body, got nil")
+	}
+}

backend/internal/kokoro/client.go

@@ -0,0 +1,160 @@
+// Package kokoro provides a client for the Kokoro-FastAPI TTS service.
+//
+// The Kokoro API is an OpenAI-compatible audio speech API that returns a
+// download link (X-Download-Path header) instead of streaming audio directly.
+// GenerateAudio handles the two-step flow: POST /v1/audio/speech → GET /v1/download/{file}.
+package kokoro
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+)
+
+// Client is the interface for interacting with the Kokoro TTS service.
+type Client interface {
+	// GenerateAudio synthesises text using voice and returns raw MP3 bytes.
+	GenerateAudio(ctx context.Context, text, voice string) ([]byte, error)
+
+	// ListVoices returns the available voice IDs. Falls back to an empty slice
+	// on error — callers should treat an empty list as "service unavailable".
+	ListVoices(ctx context.Context) ([]string, error)
+}
+
+// httpClient is the concrete Kokoro HTTP client.
+type httpClient struct {
+	baseURL string
+	http    *http.Client
+}
+
+// New returns a Kokoro Client targeting baseURL (e.g. "https://kokoro.example.com").
+func New(baseURL string) Client {
+	return &httpClient{
+		baseURL: strings.TrimRight(baseURL, "/"),
+		http:    &http.Client{Timeout: 10 * time.Minute},
+	}
+}
+
+// GenerateAudio calls POST /v1/audio/speech (return_download_link=true) and then
+// downloads the resulting MP3 from GET /v1/download/{filename}.
+func (c *httpClient) GenerateAudio(ctx context.Context, text, voice string) ([]byte, error) {
+	if text == "" {
+		return nil, fmt.Errorf("kokoro: empty text")
+	}
+	if voice == "" {
+		voice = "af_bella"
+	}
+
+	// ── Step 1: request generation ────────────────────────────────────────────
+	reqBody, err := json.Marshal(map[string]any{
+		"model":                "kokoro",
+		"input":                text,
+		"voice":                voice,
+		"response_format":      "mp3",
+		"speed":                1.0,
+		"stream":               false,
+		"return_download_link": true,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: marshal request: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost,
+		c.baseURL+"/v1/audio/speech", bytes.NewReader(reqBody))
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: build speech request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: speech request: %w", err)
+	}
+	defer resp.Body.Close()
+	_, _ = io.Copy(io.Discard, resp.Body)
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("kokoro: speech returned %d", resp.StatusCode)
+	}
+
+	dlPath := resp.Header.Get("X-Download-Path")
+	if dlPath == "" {
+		return nil, fmt.Errorf("kokoro: no X-Download-Path header in response")
+	}
+	filename := dlPath
+	if idx := strings.LastIndex(dlPath, "/"); idx >= 0 {
+		filename = dlPath[idx+1:]
+	}
+	if filename == "" {
+		return nil, fmt.Errorf("kokoro: empty filename in X-Download-Path: %q", dlPath)
+	}
+
+	// ── Step 2: download the generated file ───────────────────────────────────
+	dlURL := c.baseURL + "/v1/download/" + filename
+	dlReq, err := http.NewRequestWithContext(ctx, http.MethodGet, dlURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: build download request: %w", err)
+	}
+
+	dlResp, err := c.http.Do(dlReq)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: download request: %w", err)
+	}
+	defer dlResp.Body.Close()
+
+	if dlResp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("kokoro: download returned %d", dlResp.StatusCode)
+	}
+
+	data, err := io.ReadAll(dlResp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: read download body: %w", err)
+	}
+	return data, nil
+}
+
+// ListVoices calls GET /v1/audio/voices and returns the list of voice IDs.
+func (c *httpClient) ListVoices(ctx context.Context) ([]string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet,
+		c.baseURL+"/v1/audio/voices", nil)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: build voices request: %w", err)
+	}
+
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("kokoro: voices request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		_, _ = io.Copy(io.Discard, resp.Body)
+		return nil, fmt.Errorf("kokoro: voices returned %d", resp.StatusCode)
+	}
+
+	var result struct {
+		Voices []string `json:"voices"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return nil, fmt.Errorf("kokoro: decode voices response: %w", err)
+	}
+	return result.Voices, nil
+}
+
+// VoiceSampleKey returns the MinIO object key for a voice sample MP3.
+// Key: _voice-samples/{voice}.mp3 (sanitised).
+func VoiceSampleKey(voice string) string {
+	safe := strings.Map(func(r rune) rune {
+		if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') ||
+			(r >= '0' && r <= '9') || r == '_' || r == '-' {
+			return r
+		}
+		return '_'
+	}, voice)
+	return fmt.Sprintf("_voice-samples/%s.mp3", safe)
+}

backend/internal/kokoro/client_test.go

@@ -0,0 +1,291 @@
+package kokoro_test
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/libnovel/backend/internal/kokoro"
+)
+
+// ── VoiceSampleKey ────────────────────────────────────────────────────────────
+
+func TestVoiceSampleKey(t *testing.T) {
+	tests := []struct {
+		voice string
+		want  string
+	}{
+		{"af_bella", "_voice-samples/af_bella.mp3"},
+		{"am_echo", "_voice-samples/am_echo.mp3"},
+		{"voice with spaces", "_voice-samples/voice_with_spaces.mp3"},
+		{"special!@#chars", "_voice-samples/special___chars.mp3"},
+		{"", "_voice-samples/.mp3"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.voice, func(t *testing.T) {
+			got := kokoro.VoiceSampleKey(tt.voice)
+			if got != tt.want {
+				t.Errorf("VoiceSampleKey(%q) = %q, want %q", tt.voice, got, tt.want)
+			}
+		})
+	}
+}
+
+// ── GenerateAudio ─────────────────────────────────────────────────────────────
+
+func TestGenerateAudio_EmptyText(t *testing.T) {
+	srv := httptest.NewServer(http.NotFoundHandler())
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.GenerateAudio(context.Background(), "", "af_bella")
+	if err == nil {
+		t.Fatal("expected error for empty text, got nil")
+	}
+	if !strings.Contains(err.Error(), "empty text") {
+		t.Errorf("expected 'empty text' in error, got: %v", err)
+	}
+}
+
+func TestGenerateAudio_DefaultVoice(t *testing.T) {
+	// Tracks that the voice defaults to af_bella when empty.
+	var capturedBody string
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/speech" {
+			buf := make([]byte, 512)
+			n, _ := r.Body.Read(buf)
+			capturedBody = string(buf[:n])
+			w.Header().Set("X-Download-Path", "/download/test_file.mp3")
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+		if strings.HasPrefix(r.URL.Path, "/v1/download/") {
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write([]byte("fake-mp3-data"))
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	data, err := c.GenerateAudio(context.Background(), "hello world", "")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if string(data) != "fake-mp3-data" {
+		t.Errorf("unexpected data: %q", string(data))
+	}
+	if !strings.Contains(capturedBody, `"af_bella"`) {
+		t.Errorf("expected default voice af_bella in request body, got: %s", capturedBody)
+	}
+}
+
+func TestGenerateAudio_SpeechNon200(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/speech" {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.GenerateAudio(context.Background(), "text", "af_bella")
+	if err == nil {
+		t.Fatal("expected error for non-200 speech response")
+	}
+	if !strings.Contains(err.Error(), "500") {
+		t.Errorf("expected 500 in error, got: %v", err)
+	}
+}
+
+func TestGenerateAudio_NoDownloadPathHeader(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/speech" {
+			// No X-Download-Path header
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.GenerateAudio(context.Background(), "text", "af_bella")
+	if err == nil {
+		t.Fatal("expected error for missing X-Download-Path")
+	}
+	if !strings.Contains(err.Error(), "X-Download-Path") {
+		t.Errorf("expected X-Download-Path in error, got: %v", err)
+	}
+}
+
+func TestGenerateAudio_DownloadFails(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/speech" {
+			w.Header().Set("X-Download-Path", "/v1/download/speech.mp3")
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+		if strings.HasPrefix(r.URL.Path, "/v1/download/") {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.GenerateAudio(context.Background(), "text", "af_bella")
+	if err == nil {
+		t.Fatal("expected error for failed download")
+	}
+	if !strings.Contains(err.Error(), "404") {
+		t.Errorf("expected 404 in error, got: %v", err)
+	}
+}
+
+func TestGenerateAudio_FullPath(t *testing.T) {
+	// X-Download-Path with a full path: extract just filename.
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/speech" {
+			w.Header().Set("X-Download-Path", "/some/nested/path/audio_abc123.mp3")
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+		if r.URL.Path == "/v1/download/audio_abc123.mp3" {
+			_, _ = w.Write([]byte("audio-bytes"))
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	data, err := c.GenerateAudio(context.Background(), "text", "af_bella")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if string(data) != "audio-bytes" {
+		t.Errorf("unexpected data: %q", string(data))
+	}
+}
+
+func TestGenerateAudio_ContextCancelled(t *testing.T) {
+	// Server that hangs — context should cancel before we get a response.
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Never respond.
+		select {}
+	}))
+	defer srv.Close()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // cancel immediately
+
+	c := kokoro.New(srv.URL)
+	_, err := c.GenerateAudio(ctx, "text", "af_bella")
+	if err == nil {
+		t.Fatal("expected error for cancelled context")
+	}
+}
+
+// ── ListVoices ────────────────────────────────────────────────────────────────
+
+func TestListVoices_Success(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/voices" {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"voices":["af_bella","am_adam","bf_emma"]}`))
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	voices, err := c.ListVoices(context.Background())
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if len(voices) != 3 {
+		t.Errorf("expected 3 voices, got %d: %v", len(voices), voices)
+	}
+	if voices[0] != "af_bella" {
+		t.Errorf("expected first voice to be af_bella, got %q", voices[0])
+	}
+}
+
+func TestListVoices_Non200(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.ListVoices(context.Background())
+	if err == nil {
+		t.Fatal("expected error for non-200 response")
+	}
+	if !strings.Contains(err.Error(), "503") {
+		t.Errorf("expected 503 in error, got: %v", err)
+	}
+}
+
+func TestListVoices_MalformedJSON(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(`not-json`))
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	_, err := c.ListVoices(context.Background())
+	if err == nil {
+		t.Fatal("expected error for malformed JSON")
+	}
+}
+
+func TestListVoices_EmptyVoices(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"voices":[]}`))
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL)
+	voices, err := c.ListVoices(context.Background())
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if len(voices) != 0 {
+		t.Errorf("expected 0 voices, got %d", len(voices))
+	}
+}
+
+// ── New ───────────────────────────────────────────────────────────────────────
+
+func TestNew_TrailingSlashStripped(t *testing.T) {
+	// Verify that a trailing slash on baseURL doesn't produce double-slash paths.
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/v1/audio/voices" {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = w.Write([]byte(`{"voices":["af_bella"]}`))
+			return
+		}
+		http.NotFound(w, r)
+	}))
+	defer srv.Close()
+
+	c := kokoro.New(srv.URL + "/") // trailing slash
+	voices, err := c.ListVoices(context.Background())
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if len(voices) == 0 {
+		t.Error("expected at least one voice")
+	}
+}

backend/internal/novelfire/htmlutil/htmlutil.go

@@ -0,0 +1,228 @@
+// Package htmlutil provides helper functions for parsing HTML with
+// golang.org/x/net/html and extracting values by Selector descriptors.
+package htmlutil
+
+import (
+	"net/url"
+	"regexp"
+	"strings"
+
+	"github.com/libnovel/backend/internal/scraper"
+	"golang.org/x/net/html"
+)
+
+// ResolveURL returns an absolute URL. If href is already absolute it is
+// returned unchanged. Otherwise it is resolved against base.
+func ResolveURL(base, href string) string {
+	if strings.HasPrefix(href, "http://") || strings.HasPrefix(href, "https://") {
+		return href
+	}
+	b, err := url.Parse(base)
+	if err != nil {
+		return base + href
+	}
+	ref, err := url.Parse(href)
+	if err != nil {
+		return base + href
+	}
+	return b.ResolveReference(ref).String()
+}
+
+// ParseHTML parses raw HTML and returns the root node.
+func ParseHTML(raw string) (*html.Node, error) {
+	return html.Parse(strings.NewReader(raw))
+}
+
+// selectorMatches reports whether node n matches sel.
+func selectorMatches(n *html.Node, sel scraper.Selector) bool {
+	if n.Type != html.ElementNode {
+		return false
+	}
+	if sel.Tag != "" && n.Data != sel.Tag {
+		return false
+	}
+	if sel.ID != "" {
+		for _, a := range n.Attr {
+			if a.Key == "id" && a.Val == sel.ID {
+				goto checkClass
+			}
+		}
+		return false
+	}
+checkClass:
+	if sel.Class != "" {
+		for _, a := range n.Attr {
+			if a.Key == "class" {
+				for _, cls := range strings.Fields(a.Val) {
+					if cls == sel.Class {
+						goto matched
+					}
+				}
+			}
+		}
+		return false
+	}
+matched:
+	return true
+}
+
+// AttrVal returns the value of attribute key from node n.
+func AttrVal(n *html.Node, key string) string {
+	for _, a := range n.Attr {
+		if a.Key == key {
+			return a.Val
+		}
+	}
+	return ""
+}
+
+// TextContent returns the concatenated text content of all descendant text nodes.
+func TextContent(n *html.Node) string {
+	var sb strings.Builder
+	var walk func(*html.Node)
+	walk = func(cur *html.Node) {
+		if cur.Type == html.TextNode {
+			sb.WriteString(cur.Data)
+		}
+		for c := cur.FirstChild; c != nil; c = c.NextSibling {
+			walk(c)
+		}
+	}
+	walk(n)
+	return strings.TrimSpace(sb.String())
+}
+
+// FindFirst returns the first node matching sel within root.
+func FindFirst(root *html.Node, sel scraper.Selector) *html.Node {
+	var found *html.Node
+	var walk func(*html.Node) bool
+	walk = func(n *html.Node) bool {
+		if selectorMatches(n, sel) {
+			found = n
+			return true
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			if walk(c) {
+				return true
+			}
+		}
+		return false
+	}
+	walk(root)
+	return found
+}
+
+// FindAll returns all nodes matching sel within root.
+func FindAll(root *html.Node, sel scraper.Selector) []*html.Node {
+	var results []*html.Node
+	var walk func(*html.Node)
+	walk = func(n *html.Node) {
+		if selectorMatches(n, sel) {
+			results = append(results, n)
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			walk(c)
+		}
+	}
+	walk(root)
+	return results
+}
+
+// ExtractText extracts a string value from node n using sel.
+// If sel.Attr is set the attribute value is returned; otherwise the inner text.
+func ExtractText(n *html.Node, sel scraper.Selector) string {
+	if sel.Attr != "" {
+		return AttrVal(n, sel.Attr)
+	}
+	return TextContent(n)
+}
+
+// ExtractFirst locates the first match in root and returns its text/attr value.
+func ExtractFirst(root *html.Node, sel scraper.Selector) string {
+	n := FindFirst(root, sel)
+	if n == nil {
+		return ""
+	}
+	return ExtractText(n, sel)
+}
+
+// ExtractAll locates all matches in root and returns their text/attr values.
+func ExtractAll(root *html.Node, sel scraper.Selector) []string {
+	nodes := FindAll(root, sel)
+	out := make([]string, 0, len(nodes))
+	for _, n := range nodes {
+		if v := ExtractText(n, sel); v != "" {
+			out = append(out, v)
+		}
+	}
+	return out
+}
+
+// NodeToMarkdown converts the children of an HTML node to a plain-text/Markdown
+// representation suitable for chapter storage.
+func NodeToMarkdown(n *html.Node) string {
+	var sb strings.Builder
+	nodeToMD(n, &sb)
+	out := multiBlankLine.ReplaceAllString(sb.String(), "\n\n")
+	return strings.TrimSpace(out)
+}
+
+var multiBlankLine = regexp.MustCompile(`\n(\s*\n){2,}`)
+
+var blockElements = map[string]bool{
+	"p": true, "div": true, "br": true, "h1": true, "h2": true,
+	"h3": true, "h4": true, "h5": true, "h6": true, "li": true,
+	"blockquote": true, "pre": true, "hr": true,
+}
+
+func nodeToMD(n *html.Node, sb *strings.Builder) {
+	switch n.Type {
+	case html.TextNode:
+		sb.WriteString(n.Data)
+	case html.ElementNode:
+		tag := n.Data
+		switch tag {
+		case "br":
+			sb.WriteString("\n")
+		case "hr":
+			sb.WriteString("\n---\n")
+		case "h1", "h2", "h3", "h4", "h5", "h6":
+			level := int(tag[1] - '0')
+			sb.WriteString("\n" + strings.Repeat("#", level) + " ")
+			for c := n.FirstChild; c != nil; c = c.NextSibling {
+				nodeToMD(c, sb)
+			}
+			sb.WriteString("\n\n")
+			return
+		case "p", "div", "blockquote":
+			sb.WriteString("\n")
+			for c := n.FirstChild; c != nil; c = c.NextSibling {
+				nodeToMD(c, sb)
+			}
+			sb.WriteString("\n")
+			return
+		case "em", "i":
+			sb.WriteString("*")
+			for c := n.FirstChild; c != nil; c = c.NextSibling {
+				nodeToMD(c, sb)
+			}
+			sb.WriteString("*")
+			return
+		case "strong", "b":
+			sb.WriteString("**")
+			for c := n.FirstChild; c != nil; c = c.NextSibling {
+				nodeToMD(c, sb)
+			}
+			sb.WriteString("**")
+			return
+		case "script", "style", "noscript":
+			return // drop
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			nodeToMD(c, sb)
+		}
+		if blockElements[tag] {
+			sb.WriteString("\n")
+		}
+	}
+}

backend/internal/novelfire/scraper.go

@@ -0,0 +1,498 @@
+// Package novelfire provides a NovelScraper implementation for novelfire.net.
+//
+// Site structure (as of 2025):
+//
+//	Catalogue : https://novelfire.net/genre-all/sort-new/status-all/all-novel?page=N
+//	Book page : https://novelfire.net/book/{slug}
+//	Chapters  : https://novelfire.net/book/{slug}/chapters?page=N
+//	Chapter   : https://novelfire.net/book/{slug}/{chapter-slug}
+package novelfire
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"net/url"
+	"path"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/libnovel/backend/internal/browser"
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/novelfire/htmlutil"
+	"github.com/libnovel/backend/internal/scraper"
+	"golang.org/x/net/html"
+)
+
+const (
+	baseURL       = "https://novelfire.net"
+	cataloguePath = "/genre-all/sort-new/status-all/all-novel"
+	rankingPath   = "/genre-all/sort-popular/status-all/all-novel"
+)
+
+// Scraper is the novelfire.net implementation of scraper.NovelScraper.
+type Scraper struct {
+	client browser.Client
+	log    *slog.Logger
+}
+
+// Compile-time interface check.
+var _ scraper.NovelScraper = (*Scraper)(nil)
+
+// New returns a new novelfire Scraper backed by client.
+func New(client browser.Client, log *slog.Logger) *Scraper {
+	if log == nil {
+		log = slog.Default()
+	}
+	return &Scraper{client: client, log: log}
+}
+
+// SourceName implements NovelScraper.
+func (s *Scraper) SourceName() string { return "novelfire.net" }
+
+// ── CatalogueProvider ─────────────────────────────────────────────────────────
+
+// ScrapeCatalogue streams all CatalogueEntry values across all catalogue pages.
+func (s *Scraper) ScrapeCatalogue(ctx context.Context) (<-chan domain.CatalogueEntry, <-chan error) {
+	entries := make(chan domain.CatalogueEntry, 64)
+	errs := make(chan error, 16)
+
+	go func() {
+		defer close(entries)
+		defer close(errs)
+
+		pageURL := baseURL + cataloguePath
+		page := 1
+
+		for pageURL != "" {
+			select {
+			case <-ctx.Done():
+				return
+			default:
+			}
+
+			s.log.Info("scraping catalogue page", "page", page, "url", pageURL)
+			raw, err := s.client.GetContent(ctx, pageURL)
+			if err != nil {
+				errs <- fmt.Errorf("catalogue page %d: %w", page, err)
+				return
+			}
+
+			root, err := htmlutil.ParseHTML(raw)
+			if err != nil {
+				errs <- fmt.Errorf("catalogue page %d parse: %w", page, err)
+				return
+			}
+
+			cards := htmlutil.FindAll(root, scraper.Selector{Tag: "li", Class: "novel-item", Multiple: true})
+			if len(cards) == 0 {
+				s.log.Warn("no novel cards found, stopping pagination", "page", page)
+				return
+			}
+
+			for _, card := range cards {
+				linkNode := htmlutil.FindFirst(card, scraper.Selector{Tag: "a", Attr: "href"})
+				titleNode := htmlutil.FindFirst(card, scraper.Selector{Tag: "h4", Class: "novel-title"})
+
+				var title, href string
+				if linkNode != nil {
+					href = htmlutil.ExtractText(linkNode, scraper.Selector{Tag: "a", Attr: "href"})
+				}
+				if titleNode != nil {
+					title = strings.TrimSpace(htmlutil.ExtractText(titleNode, scraper.Selector{}))
+				}
+				if href == "" || title == "" {
+					continue
+				}
+
+				bookURL := resolveURL(baseURL, href)
+				select {
+				case <-ctx.Done():
+					return
+				case entries <- domain.CatalogueEntry{Title: title, URL: bookURL}:
+				}
+			}
+
+			if !hasNextPageLink(root) {
+				break
+			}
+			nextHref := ""
+			for _, a := range htmlutil.FindAll(root, scraper.Selector{Tag: "a", Multiple: true}) {
+				if htmlutil.AttrVal(a, "rel") == "next" {
+					nextHref = htmlutil.AttrVal(a, "href")
+					break
+				}
+			}
+			if nextHref == "" {
+				break
+			}
+			pageURL = resolveURL(baseURL, nextHref)
+			page++
+		}
+	}()
+
+	return entries, errs
+}
+
+// ── MetadataProvider ──────────────────────────────────────────────────────────
+
+// ScrapeMetadata fetches and parses book metadata from the book's landing page.
+func (s *Scraper) ScrapeMetadata(ctx context.Context, bookURL string) (domain.BookMeta, error) {
+	s.log.Debug("metadata fetch starting", "url", bookURL)
+
+	raw, err := s.client.GetContent(ctx, bookURL)
+	if err != nil {
+		return domain.BookMeta{}, fmt.Errorf("metadata fetch %s: %w", bookURL, err)
+	}
+
+	root, err := htmlutil.ParseHTML(raw)
+	if err != nil {
+		return domain.BookMeta{}, fmt.Errorf("metadata parse %s: %w", bookURL, err)
+	}
+
+	title := htmlutil.ExtractFirst(root, scraper.Selector{Tag: "h1", Class: "novel-title"})
+	author := htmlutil.ExtractFirst(root, scraper.Selector{Tag: "span", Class: "author"})
+
+	var cover string
+	if fig := htmlutil.FindFirst(root, scraper.Selector{Tag: "figure", Class: "cover"}); fig != nil {
+		cover = htmlutil.ExtractFirst(fig, scraper.Selector{Tag: "img", Attr: "src"})
+		if cover != "" && !strings.HasPrefix(cover, "http") {
+			cover = baseURL + cover
+		}
+	}
+
+	status := htmlutil.ExtractFirst(root, scraper.Selector{Tag: "span", Class: "status"})
+
+	genresNode := htmlutil.FindFirst(root, scraper.Selector{Tag: "div", Class: "genres"})
+	var genres []string
+	if genresNode != nil {
+		genres = htmlutil.ExtractAll(genresNode, scraper.Selector{Tag: "a", Multiple: true})
+	}
+
+	summary := htmlutil.ExtractFirst(root, scraper.Selector{Tag: "div", Class: "summary"})
+	totalStr := htmlutil.ExtractFirst(root, scraper.Selector{Tag: "span", Class: "chapter-count"})
+	totalChapters := parseChapterCount(totalStr)
+
+	slug := slugFromURL(bookURL)
+
+	meta := domain.BookMeta{
+		Slug:          slug,
+		Title:         title,
+		Author:        author,
+		Cover:         cover,
+		Status:        status,
+		Genres:        genres,
+		Summary:       summary,
+		TotalChapters: totalChapters,
+		SourceURL:     bookURL,
+	}
+	s.log.Debug("metadata parsed", "slug", meta.Slug, "title", meta.Title)
+	return meta, nil
+}
+
+// ── ChapterListProvider ───────────────────────────────────────────────────────
+
+// ScrapeChapterList returns all chapter references for a book, ordered ascending.
+func (s *Scraper) ScrapeChapterList(ctx context.Context, bookURL string) ([]domain.ChapterRef, error) {
+	var refs []domain.ChapterRef
+	baseChapterURL := strings.TrimRight(bookURL, "/") + "/chapters"
+	page := 1
+
+	for {
+		select {
+		case <-ctx.Done():
+			return refs, ctx.Err()
+		default:
+		}
+
+		pageURL := fmt.Sprintf("%s?page=%d", baseChapterURL, page)
+		s.log.Info("scraping chapter list", "page", page, "url", pageURL)
+
+		raw, err := s.client.GetContent(ctx, pageURL)
+		if err != nil {
+			return refs, fmt.Errorf("chapter list page %d: %w", page, err)
+		}
+
+		root, err := htmlutil.ParseHTML(raw)
+		if err != nil {
+			return refs, fmt.Errorf("chapter list page %d parse: %w", page, err)
+		}
+
+		chapterList := htmlutil.FindFirst(root, scraper.Selector{Class: "chapter-list"})
+		if chapterList == nil {
+			s.log.Debug("chapter list container not found, stopping pagination", "page", page)
+			break
+		}
+
+		items := htmlutil.FindAll(chapterList, scraper.Selector{Tag: "li"})
+		if len(items) == 0 {
+			break
+		}
+
+		for _, item := range items {
+			linkNode := htmlutil.FindFirst(item, scraper.Selector{Tag: "a"})
+			if linkNode == nil {
+				continue
+			}
+			href := htmlutil.ExtractText(linkNode, scraper.Selector{Attr: "href"})
+			chTitle := htmlutil.ExtractText(linkNode, scraper.Selector{})
+			if href == "" {
+				continue
+			}
+			chURL := resolveURL(baseURL, href)
+			num := chapterNumberFromURL(chURL)
+			if num <= 0 {
+				num = len(refs) + 1
+				s.log.Warn("chapter number not parseable from URL, falling back to position",
+					"url", chURL, "position", num)
+			}
+			refs = append(refs, domain.ChapterRef{
+				Number: num,
+				Title:  strings.TrimSpace(chTitle),
+				URL:    chURL,
+			})
+		}
+
+		page++
+	}
+
+	return refs, nil
+}
+
+// ── ChapterTextProvider ───────────────────────────────────────────────────────
+
+// ScrapeChapterText fetches and parses a single chapter page.
+func (s *Scraper) ScrapeChapterText(ctx context.Context, ref domain.ChapterRef) (domain.Chapter, error) {
+	s.log.Debug("chapter text fetch starting", "chapter", ref.Number, "url", ref.URL)
+
+	raw, err := retryGet(ctx, s.log, s.client, ref.URL, 9, 6*time.Second)
+	if err != nil {
+		return domain.Chapter{}, fmt.Errorf("chapter %d fetch: %w", ref.Number, err)
+	}
+
+	root, err := htmlutil.ParseHTML(raw)
+	if err != nil {
+		return domain.Chapter{}, fmt.Errorf("chapter %d parse: %w", ref.Number, err)
+	}
+
+	container := htmlutil.FindFirst(root, scraper.Selector{ID: "content"})
+	if container == nil {
+		return domain.Chapter{}, fmt.Errorf("chapter %d: #content container not found in %s", ref.Number, ref.URL)
+	}
+
+	text := htmlutil.NodeToMarkdown(container)
+
+	s.log.Debug("chapter text parsed", "chapter", ref.Number, "text_bytes", len(text))
+
+	return domain.Chapter{Ref: ref, Text: text}, nil
+}
+
+// ── RankingProvider ───────────────────────────────────────────────────────────
+
+// ScrapeRanking pages through up to maxPages pages of the popular-novels listing.
+// maxPages <= 0 means all pages. The caller decides whether to persist items.
+func (s *Scraper) ScrapeRanking(ctx context.Context, maxPages int) (<-chan domain.BookMeta, <-chan error) {
+	entries := make(chan domain.BookMeta, 32)
+	errs := make(chan error, 16)
+
+	go func() {
+		defer close(entries)
+		defer close(errs)
+
+		rank := 1
+
+		for page := 1; maxPages <= 0 || page <= maxPages; page++ {
+			select {
+			case <-ctx.Done():
+				return
+			default:
+			}
+
+			pageURL := fmt.Sprintf("%s%s?page=%d", baseURL, rankingPath, page)
+			s.log.Info("scraping popular ranking page", "page", page, "url", pageURL)
+
+			raw, err := s.client.GetContent(ctx, pageURL)
+			if err != nil {
+				errs <- fmt.Errorf("ranking page %d: %w", page, err)
+				return
+			}
+
+			root, err := htmlutil.ParseHTML(raw)
+			if err != nil {
+				errs <- fmt.Errorf("ranking page %d parse: %w", page, err)
+				return
+			}
+
+			cards := htmlutil.FindAll(root, scraper.Selector{Tag: "li", Class: "novel-item", Multiple: true})
+			if len(cards) == 0 {
+				break
+			}
+
+			for _, card := range cards {
+				linkNode := htmlutil.FindFirst(card, scraper.Selector{Tag: "a"})
+				if linkNode == nil {
+					continue
+				}
+				href := htmlutil.ExtractText(linkNode, scraper.Selector{Tag: "a", Attr: "href"})
+				bookURL := resolveURL(baseURL, href)
+				if bookURL == "" {
+					continue
+				}
+
+				title := strings.TrimSpace(htmlutil.ExtractFirst(card, scraper.Selector{Tag: "h4", Class: "novel-title"}))
+				if title == "" {
+					title = strings.TrimSpace(htmlutil.ExtractText(linkNode, scraper.Selector{Tag: "a", Attr: "title"}))
+				}
+				if title == "" {
+					continue
+				}
+
+				var cover string
+				if fig := htmlutil.FindFirst(card, scraper.Selector{Tag: "figure", Class: "novel-cover"}); fig != nil {
+					cover = htmlutil.ExtractFirst(fig, scraper.Selector{Tag: "img", Attr: "data-src"})
+					if cover == "" {
+						cover = htmlutil.ExtractFirst(fig, scraper.Selector{Tag: "img", Attr: "src"})
+					}
+					if strings.HasPrefix(cover, "data:") {
+						cover = ""
+					}
+					if cover != "" && !strings.HasPrefix(cover, "http") {
+						cover = baseURL + cover
+					}
+				}
+
+				meta := domain.BookMeta{
+					Slug:      slugFromURL(bookURL),
+					Title:     title,
+					Cover:     cover,
+					SourceURL: bookURL,
+					Ranking:   rank,
+				}
+				rank++
+
+				select {
+				case <-ctx.Done():
+					return
+				case entries <- meta:
+				}
+			}
+
+			if !hasNextPageLink(root) {
+				break
+			}
+		}
+	}()
+
+	return entries, errs
+}
+
+// ── helpers ───────────────────────────────────────────────────────────────────
+
+func resolveURL(base, href string) string { return htmlutil.ResolveURL(base, href) }
+
+func hasNextPageLink(root *html.Node) bool {
+	links := htmlutil.FindAll(root, scraper.Selector{Tag: "a", Multiple: true})
+	for _, a := range links {
+		for _, attr := range a.Attr {
+			if attr.Key == "rel" && attr.Val == "next" {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func slugFromURL(bookURL string) string {
+	u, err := url.Parse(bookURL)
+	if err != nil {
+		return bookURL
+	}
+	parts := strings.Split(strings.Trim(u.Path, "/"), "/")
+	if len(parts) >= 2 && parts[0] == "book" {
+		return parts[1]
+	}
+	if len(parts) > 0 {
+		return parts[len(parts)-1]
+	}
+	return ""
+}
+
+func parseChapterCount(s string) int {
+	s = strings.ReplaceAll(s, ",", "")
+	fields := strings.Fields(s)
+	if len(fields) == 0 {
+		return 0
+	}
+	n, _ := strconv.Atoi(fields[0])
+	return n
+}
+
+func chapterNumberFromURL(chapterURL string) int {
+	u, err := url.Parse(chapterURL)
+	if err != nil {
+		return 0
+	}
+	seg := path.Base(u.Path)
+	seg = strings.TrimPrefix(seg, "chapter-")
+	seg = strings.TrimPrefix(seg, "chap-")
+	seg = strings.TrimPrefix(seg, "ch-")
+	digits := strings.FieldsFunc(seg, func(r rune) bool {
+		return r < '0' || r > '9'
+	})
+	if len(digits) == 0 {
+		return 0
+	}
+	n, _ := strconv.Atoi(digits[0])
+	return n
+}
+
+// retryGet calls client.GetContent up to maxAttempts times with exponential backoff.
+// If the server returns 429 (ErrRateLimit), the suggested Retry-After delay is used
+// instead of the geometric backoff delay.
+func retryGet(
+	ctx context.Context,
+	log *slog.Logger,
+	client browser.Client,
+	pageURL string,
+	maxAttempts int,
+	baseDelay time.Duration,
+) (string, error) {
+	var lastErr error
+	delay := baseDelay
+	for attempt := 1; attempt <= maxAttempts; attempt++ {
+		raw, err := client.GetContent(ctx, pageURL)
+		if err == nil {
+			return raw, nil
+		}
+		lastErr = err
+		if ctx.Err() != nil {
+			return "", err
+		}
+		if attempt < maxAttempts {
+			// If the server is rate-limiting us, honour its Retry-After delay.
+			waitFor := delay
+			var rlErr *browser.RateLimitError
+			if errors.As(err, &rlErr) {
+				waitFor = rlErr.RetryAfter
+				if log != nil {
+					log.Warn("rate limited, backing off",
+						"url", pageURL, "attempt", attempt, "retry_in", waitFor)
+				}
+			} else {
+				if log != nil {
+					log.Warn("fetch failed, retrying",
+						"url", pageURL, "attempt", attempt, "retry_in", delay, "err", err)
+				}
+				delay *= 2
+			}
+			select {
+			case <-ctx.Done():
+				return "", ctx.Err()
+			case <-time.After(waitFor):
+			}
+		}
+	}
+	return "", lastErr
+}

backend/internal/novelfire/scraper_test.go

@@ -0,0 +1,129 @@
+package novelfire
+
+import (
+	"context"
+	"testing"
+)
+
+func TestSlugFromURL(t *testing.T) {
+	cases := []struct {
+		url  string
+		want string
+	}{
+		{"https://novelfire.net/book/shadow-slave", "shadow-slave"},
+		{"https://novelfire.net/book/a-dragon-against-the-whole-world", "a-dragon-against-the-whole-world"},
+		{"https://novelfire.net/book/foo/chapter-1", "foo"},
+		{"https://novelfire.net/", ""},
+		{"not-a-url", "not-a-url"},
+	}
+	for _, c := range cases {
+		got := slugFromURL(c.url)
+		if got != c.want {
+			t.Errorf("slugFromURL(%q) = %q, want %q", c.url, got, c.want)
+		}
+	}
+}
+
+func TestChapterNumberFromURL(t *testing.T) {
+	cases := []struct {
+		url  string
+		want int
+	}{
+		{"https://novelfire.net/book/shadow-slave/chapter-42", 42},
+		{"https://novelfire.net/book/shadow-slave/chapter-1000", 1000},
+		{"https://novelfire.net/book/shadow-slave/chap-7", 7},
+		{"https://novelfire.net/book/shadow-slave/ch-3", 3},
+		{"https://novelfire.net/book/shadow-slave/42", 42},
+		{"https://novelfire.net/book/shadow-slave/no-number-here", 0},
+		{"not-a-url", 0},
+	}
+	for _, c := range cases {
+		got := chapterNumberFromURL(c.url)
+		if got != c.want {
+			t.Errorf("chapterNumberFromURL(%q) = %d, want %d", c.url, got, c.want)
+		}
+	}
+}
+
+func TestParseChapterCount(t *testing.T) {
+	cases := []struct {
+		in   string
+		want int
+	}{
+		{"123 Chapters", 123},
+		{"1,234 Chapters", 1234},
+		{"0", 0},
+		{"", 0},
+		{"500", 500},
+	}
+	for _, c := range cases {
+		got := parseChapterCount(c.in)
+		if got != c.want {
+			t.Errorf("parseChapterCount(%q) = %d, want %d", c.in, got, c.want)
+		}
+	}
+}
+
+func TestRetryGet_ContextCancellation(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // cancel immediately
+
+	stub := newStubClient()
+	stub.setError("https://example.com/page", context.Canceled)
+
+	_, err := retryGet(ctx, nil, stub, "https://example.com/page", 3, 0)
+	if err == nil {
+		t.Fatal("expected error on cancelled context")
+	}
+}
+
+func TestRetryGet_EventualSuccess(t *testing.T) {
+	stub := newStubClient()
+	calls := 0
+	stub.setFn("https://example.com/page", func() (string, error) {
+		calls++
+		if calls < 3 {
+			return "", context.DeadlineExceeded
+		}
+		return "<html>ok</html>", nil
+	})
+
+	got, err := retryGet(context.Background(), nil, stub, "https://example.com/page", 5, 0)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got != "<html>ok</html>" {
+		t.Errorf("got %q, want html", got)
+	}
+	if calls != 3 {
+		t.Errorf("expected 3 calls, got %d", calls)
+	}
+}
+
+// ── minimal stub client for tests ─────────────────────────────────────────────
+
+type stubClient struct {
+	errors map[string]error
+	fns    map[string]func() (string, error)
+}
+
+func newStubClient() *stubClient {
+	return &stubClient{
+		errors: make(map[string]error),
+		fns:    make(map[string]func() (string, error)),
+	}
+}
+
+func (s *stubClient) setError(u string, err error) { s.errors[u] = err }
+
+func (s *stubClient) setFn(u string, fn func() (string, error)) { s.fns[u] = fn }
+
+func (s *stubClient) GetContent(_ context.Context, pageURL string) (string, error) {
+	if fn, ok := s.fns[pageURL]; ok {
+		return fn()
+	}
+	if err, ok := s.errors[pageURL]; ok {
+		return "", err
+	}
+	return "", context.DeadlineExceeded
+}

backend/internal/orchestrator/orchestrator.go

@@ -0,0 +1,205 @@
+// Package orchestrator coordinates metadata extraction, chapter-list fetching,
+// and parallel chapter scraping for a single book.
+//
+// Design:
+//   - RunBook scrapes one book (metadata + chapter list + chapter texts) end-to-end.
+//   - N worker goroutines pull chapter refs from a shared queue and call ScrapeChapterText.
+//   - The caller (runner poll loop) owns the outer task-claim / finish cycle.
+package orchestrator
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"runtime"
+	"sync"
+	"sync/atomic"
+
+	"github.com/libnovel/backend/internal/bookstore"
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/scraper"
+)
+
+// Config holds tunable parameters for the orchestrator.
+type Config struct {
+	// Workers is the number of goroutines used to scrape chapters in parallel.
+	// Defaults to runtime.NumCPU() when 0.
+	Workers int
+}
+
+// Orchestrator runs a single-book scrape pipeline.
+type Orchestrator struct {
+	novel   scraper.NovelScraper
+	store   bookstore.BookWriter
+	log     *slog.Logger
+	workers int
+}
+
+// New returns a new Orchestrator.
+func New(cfg Config, novel scraper.NovelScraper, store bookstore.BookWriter, log *slog.Logger) *Orchestrator {
+	if log == nil {
+		log = slog.Default()
+	}
+	workers := cfg.Workers
+	if workers <= 0 {
+		workers = runtime.NumCPU()
+	}
+	return &Orchestrator{novel: novel, store: store, log: log, workers: workers}
+}
+
+// RunBook scrapes a single book described by task. It handles:
+//  1. Metadata scrape + write
+//  2. Chapter list scrape + write
+//  3. Parallel chapter text scrape + write (worker pool)
+//
+// Returns a ScrapeResult with counters. The result's ErrorMessage is non-empty
+// if the run failed at the metadata or chapter-list level.
+func (o *Orchestrator) RunBook(ctx context.Context, task domain.ScrapeTask) domain.ScrapeResult {
+	o.log.Info("orchestrator: RunBook starting",
+		"task_id", task.ID,
+		"kind", task.Kind,
+		"url", task.TargetURL,
+		"workers", o.workers,
+	)
+
+	var result domain.ScrapeResult
+
+	if task.TargetURL == "" {
+		result.ErrorMessage = "task has no target URL"
+		return result
+	}
+
+	// ── Step 1: Metadata ──────────────────────────────────────────────────────
+	meta, err := o.novel.ScrapeMetadata(ctx, task.TargetURL)
+	if err != nil {
+		o.log.Error("metadata scrape failed", "url", task.TargetURL, "err", err)
+		result.ErrorMessage = fmt.Sprintf("metadata: %v", err)
+		result.Errors++
+		return result
+	}
+
+	if err := o.store.WriteMetadata(ctx, meta); err != nil {
+		o.log.Error("metadata write failed", "slug", meta.Slug, "err", err)
+		// non-fatal: continue to chapters
+		result.Errors++
+	} else {
+		result.BooksFound = 1
+	}
+
+	o.log.Info("metadata saved", "slug", meta.Slug, "title", meta.Title)
+
+	// ── Step 2: Chapter list ──────────────────────────────────────────────────
+	refs, err := o.novel.ScrapeChapterList(ctx, task.TargetURL)
+	if err != nil {
+		o.log.Error("chapter list scrape failed", "slug", meta.Slug, "err", err)
+		result.ErrorMessage = fmt.Sprintf("chapter list: %v", err)
+		result.Errors++
+		return result
+	}
+
+	o.log.Info("chapter list fetched", "slug", meta.Slug, "chapters", len(refs))
+
+	// Persist chapter refs (without text) so the index exists early.
+	if wErr := o.store.WriteChapterRefs(ctx, meta.Slug, refs); wErr != nil {
+		o.log.Warn("chapter refs write failed", "slug", meta.Slug, "err", wErr)
+	}
+
+	// ── Step 3: Chapter texts (worker pool) ───────────────────────────────────
+	type chapterJob struct {
+		slug  string
+		ref   domain.ChapterRef
+		total int // total chapters to scrape (for progress logging)
+	}
+	work := make(chan chapterJob, o.workers*4)
+
+	var scraped, skipped, errors atomic.Int64
+	var wg sync.WaitGroup
+
+	for i := 0; i < o.workers; i++ {
+		wg.Add(1)
+		go func(workerID int) {
+			defer wg.Done()
+			for job := range work {
+				select {
+				case <-ctx.Done():
+					return
+				default:
+				}
+
+				if o.store.ChapterExists(ctx, job.slug, job.ref) {
+					o.log.Debug("chapter already exists, skipping",
+						"slug", job.slug, "chapter", job.ref.Number)
+					skipped.Add(1)
+					continue
+				}
+
+				ch, err := o.novel.ScrapeChapterText(ctx, job.ref)
+				if err != nil {
+					o.log.Error("chapter scrape failed",
+						"slug", job.slug, "chapter", job.ref.Number, "err", err)
+					errors.Add(1)
+					continue
+				}
+
+				if err := o.store.WriteChapter(ctx, job.slug, ch); err != nil {
+					o.log.Error("chapter write failed",
+						"slug", job.slug, "chapter", job.ref.Number, "err", err)
+					errors.Add(1)
+					continue
+				}
+
+				n := scraped.Add(1)
+				// Log a progress summary every 25 chapters scraped.
+				if n%25 == 0 {
+					o.log.Info("scraping chapters",
+						"slug", job.slug, "scraped", n, "total", job.total)
+				}
+			}
+		}(i)
+	}
+
+	// Count how many chapters will actually be enqueued (for progress logging).
+	toScrape := 0
+	for _, ref := range refs {
+		if task.FromChapter > 0 && ref.Number < task.FromChapter {
+			continue
+		}
+		if task.ToChapter > 0 && ref.Number > task.ToChapter {
+			continue
+		}
+		toScrape++
+	}
+
+	// Enqueue chapter jobs respecting the optional range filter from the task.
+	for _, ref := range refs {
+		if task.FromChapter > 0 && ref.Number < task.FromChapter {
+			skipped.Add(1)
+			continue
+		}
+		if task.ToChapter > 0 && ref.Number > task.ToChapter {
+			skipped.Add(1)
+			continue
+		}
+		select {
+		case <-ctx.Done():
+			goto drain
+		case work <- chapterJob{slug: meta.Slug, ref: ref, total: toScrape}:
+		}
+	}
+
+drain:
+	close(work)
+	wg.Wait()
+
+	result.ChaptersScraped = int(scraped.Load())
+	result.ChaptersSkipped = int(skipped.Load())
+	result.Errors += int(errors.Load())
+
+	o.log.Info("book scrape finished",
+		"slug", meta.Slug,
+		"scraped", result.ChaptersScraped,
+		"skipped", result.ChaptersSkipped,
+		"errors", result.Errors,
+	)
+	return result
+}

backend/internal/orchestrator/orchestrator_test.go

@@ -0,0 +1,210 @@
+package orchestrator
+
+import (
+	"context"
+	"errors"
+	"sync"
+	"testing"
+
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// ── stubs ─────────────────────────────────────────────────────────────────────
+
+type stubScraper struct {
+	meta     domain.BookMeta
+	metaErr  error
+	refs     []domain.ChapterRef
+	refsErr  error
+	chapters map[int]domain.Chapter
+	chapErr  map[int]error
+}
+
+func (s *stubScraper) SourceName() string { return "stub" }
+
+func (s *stubScraper) ScrapeCatalogue(ctx context.Context) (<-chan domain.CatalogueEntry, <-chan error) {
+	ch := make(chan domain.CatalogueEntry)
+	errs := make(chan error)
+	close(ch)
+	close(errs)
+	return ch, errs
+}
+
+func (s *stubScraper) ScrapeMetadata(_ context.Context, _ string) (domain.BookMeta, error) {
+	return s.meta, s.metaErr
+}
+
+func (s *stubScraper) ScrapeChapterList(_ context.Context, _ string) ([]domain.ChapterRef, error) {
+	return s.refs, s.refsErr
+}
+
+func (s *stubScraper) ScrapeChapterText(_ context.Context, ref domain.ChapterRef) (domain.Chapter, error) {
+	if s.chapErr != nil {
+		if err, ok := s.chapErr[ref.Number]; ok {
+			return domain.Chapter{}, err
+		}
+	}
+	if s.chapters != nil {
+		if ch, ok := s.chapters[ref.Number]; ok {
+			return ch, nil
+		}
+	}
+	return domain.Chapter{Ref: ref, Text: "text"}, nil
+}
+
+func (s *stubScraper) ScrapeRanking(ctx context.Context, maxPages int) (<-chan domain.BookMeta, <-chan error) {
+	ch := make(chan domain.BookMeta)
+	errs := make(chan error)
+	close(ch)
+	close(errs)
+	return ch, errs
+}
+
+type stubStore struct {
+	mu              sync.Mutex
+	metaWritten     []domain.BookMeta
+	chaptersWritten []domain.Chapter
+	existing        map[string]bool // "slug:N" → exists
+	writeMetaErr    error
+}
+
+func (s *stubStore) WriteMetadata(_ context.Context, meta domain.BookMeta) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.writeMetaErr != nil {
+		return s.writeMetaErr
+	}
+	s.metaWritten = append(s.metaWritten, meta)
+	return nil
+}
+
+func (s *stubStore) WriteChapter(_ context.Context, slug string, ch domain.Chapter) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.chaptersWritten = append(s.chaptersWritten, ch)
+	return nil
+}
+
+func (s *stubStore) WriteChapterRefs(_ context.Context, _ string, _ []domain.ChapterRef) error {
+	return nil
+}
+
+func (s *stubStore) ChapterExists(_ context.Context, slug string, ref domain.ChapterRef) bool {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	key := slug + ":" + string(rune('0'+ref.Number))
+	return s.existing[key]
+}
+
+// ── tests ──────────────────────────────────────────────────────────────────────
+
+func TestRunBook_HappyPath(t *testing.T) {
+	sc := &stubScraper{
+		meta: domain.BookMeta{Slug: "test-book", Title: "Test Book", SourceURL: "https://example.com/book/test-book"},
+		refs: []domain.ChapterRef{
+			{Number: 1, Title: "Ch 1", URL: "https://example.com/book/test-book/chapter-1"},
+			{Number: 2, Title: "Ch 2", URL: "https://example.com/book/test-book/chapter-2"},
+			{Number: 3, Title: "Ch 3", URL: "https://example.com/book/test-book/chapter-3"},
+		},
+	}
+	st := &stubStore{}
+	o := New(Config{Workers: 2}, sc, st, nil)
+
+	task := domain.ScrapeTask{
+		ID:        "t1",
+		Kind:      "book",
+		TargetURL: "https://example.com/book/test-book",
+	}
+
+	result := o.RunBook(context.Background(), task)
+
+	if result.ErrorMessage != "" {
+		t.Fatalf("unexpected error: %s", result.ErrorMessage)
+	}
+	if result.BooksFound != 1 {
+		t.Errorf("BooksFound = %d, want 1", result.BooksFound)
+	}
+	if result.ChaptersScraped != 3 {
+		t.Errorf("ChaptersScraped = %d, want 3", result.ChaptersScraped)
+	}
+}
+
+func TestRunBook_MetadataError(t *testing.T) {
+	sc := &stubScraper{metaErr: errors.New("404 not found")}
+	st := &stubStore{}
+	o := New(Config{Workers: 1}, sc, st, nil)
+
+	result := o.RunBook(context.Background(), domain.ScrapeTask{
+		ID:        "t2",
+		TargetURL: "https://example.com/book/missing",
+	})
+
+	if result.ErrorMessage == "" {
+		t.Fatal("expected ErrorMessage to be set")
+	}
+	if result.Errors != 1 {
+		t.Errorf("Errors = %d, want 1", result.Errors)
+	}
+}
+
+func TestRunBook_ChapterRange(t *testing.T) {
+	sc := &stubScraper{
+		meta: domain.BookMeta{Slug: "range-book", SourceURL: "https://example.com/book/range-book"},
+		refs: func() []domain.ChapterRef {
+			var refs []domain.ChapterRef
+			for i := 1; i <= 10; i++ {
+				refs = append(refs, domain.ChapterRef{Number: i, URL: "https://example.com/book/range-book/chapter-" + string(rune('0'+i))})
+			}
+			return refs
+		}(),
+	}
+	st := &stubStore{}
+	o := New(Config{Workers: 2}, sc, st, nil)
+
+	result := o.RunBook(context.Background(), domain.ScrapeTask{
+		ID:          "t3",
+		TargetURL:   "https://example.com/book/range-book",
+		FromChapter: 3,
+		ToChapter:   7,
+	})
+
+	if result.ErrorMessage != "" {
+		t.Fatalf("unexpected error: %s", result.ErrorMessage)
+	}
+	// chapters 3–7 = 5 scraped, chapters 1-2 and 8-10 = 5 skipped
+	if result.ChaptersScraped != 5 {
+		t.Errorf("ChaptersScraped = %d, want 5", result.ChaptersScraped)
+	}
+	if result.ChaptersSkipped != 5 {
+		t.Errorf("ChaptersSkipped = %d, want 5", result.ChaptersSkipped)
+	}
+}
+
+func TestRunBook_ContextCancellation(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	sc := &stubScraper{
+		meta: domain.BookMeta{Slug: "ctx-book", SourceURL: "https://example.com/book/ctx-book"},
+		refs: []domain.ChapterRef{
+			{Number: 1, URL: "https://example.com/book/ctx-book/chapter-1"},
+		},
+	}
+	st := &stubStore{}
+	o := New(Config{Workers: 1}, sc, st, nil)
+
+	// Should not panic; result may have errors or zero chapters.
+	result := o.RunBook(ctx, domain.ScrapeTask{
+		ID:        "t4",
+		TargetURL: "https://example.com/book/ctx-book",
+	})
+	_ = result
+}
+
+func TestRunBook_EmptyTargetURL(t *testing.T) {
+	o := New(Config{Workers: 1}, &stubScraper{}, &stubStore{}, nil)
+	result := o.RunBook(context.Background(), domain.ScrapeTask{ID: "t5"})
+	if result.ErrorMessage == "" {
+		t.Fatal("expected ErrorMessage for empty target URL")
+	}
+}

backend/internal/runner/browse_refresh.go

@@ -0,0 +1,176 @@
+package runner
+
+// browse_refresh.go — independent 6-hour loop that fetches novelfire.net
+// browse page snapshots and stores them in MinIO.
+//
+// Design:
+//   - Runs on its own ticker (BrowseRefreshInterval, default 6h) inside Run().
+//   - Fetches page 1 for each combination of the standard genre/sort/status
+//     filter values and stores the parsed JSON blob in MinIO via BrowseStore.
+//   - The backend's handleBrowse then serves from MinIO instead of calling
+//     novelfire.net live, which avoids IP-based rate-limiting on the server.
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// browseNovelListing mirrors backend.NovelListing for JSON serialisation.
+type browseNovelListing struct {
+	Slug  string `json:"slug"`
+	Title string `json:"title"`
+	Cover string `json:"cover"`
+	URL   string `json:"url"`
+}
+
+// browseSnapshot is the JSON structure stored in MinIO.
+type browseSnapshot struct {
+	Novels  []browseNovelListing `json:"novels"`
+	Page    int                  `json:"page"`
+	HasNext bool                 `json:"hasNext"`
+	// CachedAt is the UTC time the snapshot was written (ISO 8601).
+	CachedAt string `json:"cachedAt"`
+}
+
+// browseCombos lists the filter combinations to pre-fetch.
+// Each entry is (genre, sort, status, novelType).
+var browseCombos = []struct{ genre, sort, status, novelType string }{
+	{"all", "popular", "all", "all-novel"},
+	{"all", "popular", "ongoing", "all-novel"},
+	{"all", "popular", "completed", "all-novel"},
+	{"all", "new", "all", "all-novel"},
+	{"all", "new", "ongoing", "all-novel"},
+	{"all", "new", "completed", "all-novel"},
+	{"all", "top-rated", "all", "all-novel"},
+	{"all", "top-rated", "ongoing", "all-novel"},
+	{"all", "top-rated", "completed", "all-novel"},
+}
+
+const novelFireBrowseBase = "https://novelfire.net"
+
+// runBrowseRefresh fetches all browse combos from novelfire.net and stores
+// the results in MinIO. Errors per-combo are logged but do not abort the
+// whole refresh cycle.
+func (r *Runner) runBrowseRefresh(ctx context.Context) {
+	if r.deps.BrowseStore == nil {
+		r.deps.Log.Warn("runner: browse refresh skipped — BrowseStore not configured")
+		return
+	}
+
+	log := r.deps.Log.With("op", "browse_refresh")
+	log.Info("runner: browse refresh starting", "combos", len(browseCombos))
+
+	ok, fail := 0, 0
+	for _, c := range browseCombos {
+		if ctx.Err() != nil {
+			break
+		}
+		novels, hasNext, err := fetchBrowsePage(ctx, c.genre, c.sort, c.status, c.novelType)
+		if err != nil {
+			log.Warn("runner: browse fetch failed",
+				"genre", c.genre, "sort", c.sort, "status", c.status, "err", err)
+			fail++
+			continue
+		}
+
+		snap := browseSnapshot{
+			Novels:   novels,
+			Page:     1,
+			HasNext:  hasNext,
+			CachedAt: time.Now().UTC().Format(time.RFC3339),
+		}
+		data, _ := json.Marshal(snap)
+		if err := r.deps.BrowseStore.PutBrowsePage(ctx, c.genre, c.sort, c.status, c.novelType, 1, data); err != nil {
+			log.Warn("runner: browse put failed",
+				"genre", c.genre, "sort", c.sort, "status", c.status, "err", err)
+			fail++
+			continue
+		}
+		ok++
+	}
+
+	log.Info("runner: browse refresh finished", "ok", ok, "failed", fail)
+}
+
+// fetchBrowsePage calls novelfire.net and returns a list of novel listings
+// plus a hasNext flag. Mirrors the logic in backend/handlers.go.
+func fetchBrowsePage(ctx context.Context, genre, sort, status, novelType string) ([]browseNovelListing, bool, error) {
+	pageURL := fmt.Sprintf("%s/genre-%s/sort-%s/status-%s/%s?page=1",
+		novelFireBrowseBase, genre, sort, status, novelType)
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, pageURL, nil)
+	if err != nil {
+		return nil, false, fmt.Errorf("build request: %w", err)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (compatible; libnovel-runner/2)")
+	req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
+	req.Header.Set("Accept-Language", "en-US,en;q=0.9")
+
+	httpClient := &http.Client{Timeout: 45 * time.Second}
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, false, fmt.Errorf("fetch %s: %w", pageURL, err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		_, _ = io.Copy(io.Discard, resp.Body)
+		return nil, false, fmt.Errorf("upstream returned %d for %s", resp.StatusCode, pageURL)
+	}
+
+	return parseBrowseHTML(resp.Body)
+}
+
+// parseBrowseHTML parses a novelfire HTML response body. Mirrors parseBrowsePage
+// in backend/handlers.go — kept separate to avoid coupling packages.
+func parseBrowseHTML(r io.Reader) ([]browseNovelListing, bool, error) {
+	data, err := io.ReadAll(r)
+	if err != nil {
+		return nil, false, err
+	}
+	body := string(data)
+
+	hasNext := strings.Contains(body, `rel="next"`) ||
+		strings.Contains(body, `aria-label="Next"`) ||
+		strings.Contains(body, `class="next"`)
+
+	slugRe := regexp.MustCompile(`href="/book/([^/"]+)"`)
+	titleRe := regexp.MustCompile(`class="novel-title[^"]*"[^>]*>([^<]+)<`)
+	coverRe := regexp.MustCompile(`data-src="(https?://[^"]+)"`)
+
+	slugMatches := slugRe.FindAllStringSubmatch(body, -1)
+	titleMatches := titleRe.FindAllStringSubmatch(body, -1)
+	coverMatches := coverRe.FindAllStringSubmatch(body, -1)
+
+	var novels []browseNovelListing
+	seen := make(map[string]bool)
+	for i, sm := range slugMatches {
+		slug := sm[1]
+		if seen[slug] {
+			continue
+		}
+		seen[slug] = true
+
+		item := browseNovelListing{
+			Slug: slug,
+			URL:  novelFireBrowseBase + "/book/" + slug,
+		}
+		if i < len(titleMatches) {
+			item.Title = strings.TrimSpace(titleMatches[i][1])
+		}
+		if i < len(coverMatches) {
+			item.Cover = coverMatches[i][1]
+		}
+		if item.Title != "" {
+			novels = append(novels, item)
+		}
+	}
+
+	return novels, hasNext, nil
+}

backend/internal/runner/helpers.go

@@ -0,0 +1,21 @@
+package runner
+
+import (
+	"regexp"
+	"strings"
+)
+
+// stripMarkdown removes common markdown syntax from src, returning plain text
+// suitable for TTS. Mirrors the helper in the scraper's server package.
+func stripMarkdown(src string) string {
+	src = regexp.MustCompile(`(?m)^#{1,6}\s+`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\*{1,3}|_{1,3}`).ReplaceAllString(src, "")
+	src = regexp.MustCompile("(?s)```.*?```").ReplaceAllString(src, "")
+	src = regexp.MustCompile("`[^`]*`").ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\[([^\]]+)\]\([^)]+\)`).ReplaceAllString(src, "$1")
+	src = regexp.MustCompile(`!\[[^\]]*\]\([^)]+\)`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`(?m)^>\s?`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`(?m)^[-*_]{3,}\s*$`).ReplaceAllString(src, "")
+	src = regexp.MustCompile(`\n{3,}`).ReplaceAllString(src, "\n\n")
+	return strings.TrimSpace(src)
+}

backend/internal/runner/runner.go

@@ -0,0 +1,403 @@
+// Package runner implements the worker loop that polls PocketBase for pending
+// scrape and audio tasks, executes them, and reports results back.
+//
+// Design:
+//   - Run(ctx) loops on a ticker; each tick claims and dispatches pending tasks.
+//   - Scrape tasks are dispatched to the Orchestrator (one goroutine per task,
+//     up to MaxConcurrentScrape).
+//   - Audio tasks fetch chapter text, call Kokoro, upload to MinIO, and report
+//     the result back (up to MaxConcurrentAudio goroutines).
+//   - The runner is stateless between ticks; all state lives in PocketBase.
+package runner
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"sync"
+	"time"
+
+	"github.com/libnovel/backend/internal/bookstore"
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/kokoro"
+	"github.com/libnovel/backend/internal/orchestrator"
+	"github.com/libnovel/backend/internal/scraper"
+	"github.com/libnovel/backend/internal/taskqueue"
+)
+
+// Config tunes the runner behaviour.
+type Config struct {
+	// WorkerID uniquely identifies this runner instance in PocketBase records.
+	WorkerID string
+	// PollInterval is how often the runner checks for new tasks.
+	PollInterval time.Duration
+	// MaxConcurrentScrape limits simultaneous book-scrape goroutines.
+	MaxConcurrentScrape int
+	// MaxConcurrentAudio limits simultaneous audio-generation goroutines.
+	MaxConcurrentAudio int
+	// OrchestratorWorkers is the chapter-scraping parallelism inside each book run.
+	OrchestratorWorkers int
+	// HeartbeatInterval is how often active tasks PATCH their heartbeat_at
+	// timestamp to signal they are still alive. Defaults to 30s when 0.
+	HeartbeatInterval time.Duration
+	// StaleTaskThreshold is how old a heartbeat must be (or absent) before the
+	// task is considered orphaned and reset to pending. Defaults to 2m when 0.
+	StaleTaskThreshold time.Duration
+	// BrowseRefreshInterval is how often the runner pre-fetches browse page
+	// snapshots from novelfire.net and stores them in MinIO. Defaults to 6h.
+	BrowseRefreshInterval time.Duration
+}
+
+// Dependencies are the external services the runner depends on.
+type Dependencies struct {
+	// Consumer claims tasks from PocketBase.
+	Consumer taskqueue.Consumer
+	// BookWriter persists scraped data (used by orchestrator).
+	BookWriter bookstore.BookWriter
+	// BookReader reads chapter text for audio generation.
+	BookReader bookstore.BookReader
+	// AudioStore persists generated audio and checks key existence.
+	AudioStore bookstore.AudioStore
+	// BrowseStore stores browse page snapshots in MinIO.
+	BrowseStore bookstore.BrowseStore
+	// Novel is the scraper implementation.
+	Novel scraper.NovelScraper
+	// Kokoro is the TTS client.
+	Kokoro kokoro.Client
+	// Log is the structured logger.
+	Log *slog.Logger
+}
+
+// Runner is the main worker process.
+type Runner struct {
+	cfg  Config
+	deps Dependencies
+}
+
+// New creates a Runner from cfg and deps.
+// Any zero/nil field in deps will cause a panic at construction time to fail fast.
+func New(cfg Config, deps Dependencies) *Runner {
+	if cfg.PollInterval <= 0 {
+		cfg.PollInterval = 30 * time.Second
+	}
+	if cfg.MaxConcurrentScrape <= 0 {
+		cfg.MaxConcurrentScrape = 2
+	}
+	if cfg.MaxConcurrentAudio <= 0 {
+		cfg.MaxConcurrentAudio = 1
+	}
+	if cfg.WorkerID == "" {
+		cfg.WorkerID = "runner"
+	}
+	if cfg.HeartbeatInterval <= 0 {
+		cfg.HeartbeatInterval = 30 * time.Second
+	}
+	if cfg.StaleTaskThreshold <= 0 {
+		cfg.StaleTaskThreshold = 2 * time.Minute
+	}
+	if cfg.BrowseRefreshInterval <= 0 {
+		cfg.BrowseRefreshInterval = 6 * time.Hour
+	}
+	if deps.Log == nil {
+		deps.Log = slog.Default()
+	}
+	return &Runner{cfg: cfg, deps: deps}
+}
+
+// livenessFile is the path written on every successful poll so that the Docker
+// healthcheck (CMD /healthcheck file /tmp/runner.alive <max_age>) can verify
+// the runner is still making progress.
+const livenessFile = "/tmp/runner.alive"
+
+// touchAlive writes the current UTC time to livenessFile. Errors are logged but
+// never fatal — liveness is best-effort and should not crash the runner.
+func (r *Runner) touchAlive() {
+	data := []byte(time.Now().UTC().Format(time.RFC3339))
+	if err := os.WriteFile(livenessFile, data, 0o644); err != nil {
+		r.deps.Log.Warn("runner: failed to write liveness file", "err", err)
+	}
+}
+
+// Run starts the poll loop, blocking until ctx is cancelled.
+// On each tick it claims and executes all available pending tasks.
+// Scrape and audio tasks run in separate goroutine pools bounded by
+// MaxConcurrentScrape and MaxConcurrentAudio respectively.
+func (r *Runner) Run(ctx context.Context) error {
+	r.deps.Log.Info("runner: starting",
+		"worker_id", r.cfg.WorkerID,
+		"poll_interval", r.cfg.PollInterval,
+		"max_scrape", r.cfg.MaxConcurrentScrape,
+		"max_audio", r.cfg.MaxConcurrentAudio,
+		"browse_refresh_interval", r.cfg.BrowseRefreshInterval,
+	)
+
+	scrapeSem := make(chan struct{}, r.cfg.MaxConcurrentScrape)
+	audioSem := make(chan struct{}, r.cfg.MaxConcurrentAudio)
+	var wg sync.WaitGroup
+
+	// Write liveness file immediately so the first healthcheck passes before
+	// the first poll completes.
+	r.touchAlive()
+
+	tick := time.NewTicker(r.cfg.PollInterval)
+	defer tick.Stop()
+
+	browseTick := time.NewTicker(r.cfg.BrowseRefreshInterval)
+	defer browseTick.Stop()
+
+	// Run one browse refresh and one poll immediately on startup.
+	go r.runBrowseRefresh(ctx)
+
+	// Run one poll immediately on startup, then on each tick.
+	for {
+		r.poll(ctx, scrapeSem, audioSem, &wg)
+		r.touchAlive()
+
+		select {
+		case <-ctx.Done():
+			r.deps.Log.Info("runner: context cancelled, draining active tasks")
+			done := make(chan struct{})
+			go func() {
+				wg.Wait()
+				close(done)
+			}()
+			select {
+			case <-done:
+				r.deps.Log.Info("runner: all tasks drained, exiting")
+			case <-time.After(2 * time.Minute):
+				r.deps.Log.Warn("runner: drain timeout exceeded, forcing exit")
+			}
+			return nil
+		case <-browseTick.C:
+			go r.runBrowseRefresh(ctx)
+		case <-tick.C:
+		}
+	}
+}
+
+// poll claims all available pending tasks and dispatches them to goroutines.
+// It claims tasks in a tight loop until no more are available.
+func (r *Runner) poll(ctx context.Context, scrapeSem, audioSem chan struct{}, wg *sync.WaitGroup) {
+	// ── Reap orphaned tasks ───────────────────────────────────────────────
+	if n, err := r.deps.Consumer.ReapStaleTasks(ctx, r.cfg.StaleTaskThreshold); err != nil {
+		r.deps.Log.Warn("runner: reap stale tasks failed", "err", err)
+	} else if n > 0 {
+		r.deps.Log.Info("runner: reaped stale tasks", "count", n)
+	}
+
+	// ── Scrape tasks ──────────────────────────────────────────────────────
+	for {
+		if ctx.Err() != nil {
+			return
+		}
+		task, ok, err := r.deps.Consumer.ClaimNextScrapeTask(ctx, r.cfg.WorkerID)
+		if err != nil {
+			r.deps.Log.Error("runner: ClaimNextScrapeTask failed", "err", err)
+			break
+		}
+		if !ok {
+			break // queue empty
+		}
+		// Acquire semaphore (non-blocking when full — leave task running).
+		select {
+		case scrapeSem <- struct{}{}:
+		default:
+			// Too many concurrent scrapes — the task stays claimed but we can't
+			// run it right now. Log and break; the next poll will pick it up if
+			// still running (it won't be re-claimed while status=running).
+			r.deps.Log.Warn("runner: scrape semaphore full, will retry next tick",
+				"task_id", task.ID)
+			break
+		}
+		wg.Add(1)
+		go func(t domain.ScrapeTask) {
+			defer wg.Done()
+			defer func() { <-scrapeSem }()
+			r.runScrapeTask(ctx, t)
+		}(task)
+	}
+
+	// ── Audio tasks ───────────────────────────────────────────────────────
+	for {
+		if ctx.Err() != nil {
+			return
+		}
+		task, ok, err := r.deps.Consumer.ClaimNextAudioTask(ctx, r.cfg.WorkerID)
+		if err != nil {
+			r.deps.Log.Error("runner: ClaimNextAudioTask failed", "err", err)
+			break
+		}
+		if !ok {
+			break // queue empty
+		}
+		select {
+		case audioSem <- struct{}{}:
+		default:
+			r.deps.Log.Warn("runner: audio semaphore full, will retry next tick",
+				"task_id", task.ID)
+			break
+		}
+		wg.Add(1)
+		go func(t domain.AudioTask) {
+			defer wg.Done()
+			defer func() { <-audioSem }()
+			r.runAudioTask(ctx, t)
+		}(task)
+	}
+}
+
+// runScrapeTask executes one scrape task end-to-end and reports the result.
+func (r *Runner) runScrapeTask(ctx context.Context, task domain.ScrapeTask) {
+	log := r.deps.Log.With("task_id", task.ID, "kind", task.Kind, "url", task.TargetURL)
+	log.Info("runner: scrape task starting")
+
+	// Heartbeat goroutine: periodically PATCH heartbeat_at so the reaper knows
+	// this task is still alive. Cancelled when the task finishes.
+	hbCtx, hbCancel := context.WithCancel(ctx)
+	defer hbCancel()
+	go func() {
+		tick := time.NewTicker(r.cfg.HeartbeatInterval)
+		defer tick.Stop()
+		for {
+			select {
+			case <-hbCtx.Done():
+				return
+			case <-tick.C:
+				if err := r.deps.Consumer.HeartbeatTask(ctx, task.ID); err != nil {
+					log.Warn("runner: heartbeat failed", "err", err)
+				}
+			}
+		}
+	}()
+
+	oCfg := orchestrator.Config{Workers: r.cfg.OrchestratorWorkers}
+	o := orchestrator.New(oCfg, r.deps.Novel, r.deps.BookWriter, r.deps.Log)
+
+	var result domain.ScrapeResult
+
+	switch task.Kind {
+	case "catalogue":
+		result = r.runCatalogueTask(ctx, task, o, log)
+	case "book", "book_range":
+		result = o.RunBook(ctx, task)
+	default:
+		result.ErrorMessage = fmt.Sprintf("unknown task kind: %q", task.Kind)
+		log.Warn("runner: unknown task kind")
+	}
+
+	if err := r.deps.Consumer.FinishScrapeTask(ctx, task.ID, result); err != nil {
+		log.Error("runner: FinishScrapeTask failed", "err", err)
+	}
+	log.Info("runner: scrape task finished",
+		"scraped", result.ChaptersScraped,
+		"skipped", result.ChaptersSkipped,
+		"errors", result.Errors,
+	)
+}
+
+// runCatalogueTask runs a full catalogue scrape by iterating catalogue entries
+// and running a book task for each one.
+func (r *Runner) runCatalogueTask(ctx context.Context, task domain.ScrapeTask, o *orchestrator.Orchestrator, log *slog.Logger) domain.ScrapeResult {
+	entries, errCh := r.deps.Novel.ScrapeCatalogue(ctx)
+	var result domain.ScrapeResult
+
+	for entry := range entries {
+		if ctx.Err() != nil {
+			break
+		}
+		bookTask := domain.ScrapeTask{
+			ID:        task.ID,
+			Kind:      "book",
+			TargetURL: entry.URL,
+		}
+		bookResult := o.RunBook(ctx, bookTask)
+		result.BooksFound += bookResult.BooksFound + 1
+		result.ChaptersScraped += bookResult.ChaptersScraped
+		result.ChaptersSkipped += bookResult.ChaptersSkipped
+		result.Errors += bookResult.Errors
+	}
+
+	if err := <-errCh; err != nil {
+		log.Warn("runner: catalogue scrape finished with error", "err", err)
+		result.Errors++
+		if result.ErrorMessage == "" {
+			result.ErrorMessage = err.Error()
+		}
+	}
+	return result
+}
+
+// runAudioTask executes one audio-generation task:
+//  1. Read chapter text from MinIO.
+//  2. Call Kokoro to generate audio.
+//  3. Upload MP3 to MinIO under the standard audio object key.
+//  4. Report result back to PocketBase.
+func (r *Runner) runAudioTask(ctx context.Context, task domain.AudioTask) {
+	log := r.deps.Log.With("task_id", task.ID, "slug", task.Slug, "chapter", task.Chapter, "voice", task.Voice)
+	log.Info("runner: audio task starting")
+
+	// Heartbeat goroutine: periodically PATCH heartbeat_at so the reaper knows
+	// this task is still alive. Cancelled when the task finishes.
+	hbCtx, hbCancel := context.WithCancel(ctx)
+	defer hbCancel()
+	go func() {
+		tick := time.NewTicker(r.cfg.HeartbeatInterval)
+		defer tick.Stop()
+		for {
+			select {
+			case <-hbCtx.Done():
+				return
+			case <-tick.C:
+				if err := r.deps.Consumer.HeartbeatTask(ctx, task.ID); err != nil {
+					log.Warn("runner: heartbeat failed", "err", err)
+				}
+			}
+		}
+	}()
+
+	fail := func(msg string) {
+		log.Error("runner: audio task failed", "reason", msg)
+		result := domain.AudioResult{ErrorMessage: msg}
+		if err := r.deps.Consumer.FinishAudioTask(ctx, task.ID, result); err != nil {
+			log.Error("runner: FinishAudioTask failed", "err", err)
+		}
+	}
+
+	// Step 1: read chapter text.
+	raw, err := r.deps.BookReader.ReadChapter(ctx, task.Slug, task.Chapter)
+	if err != nil {
+		fail(fmt.Sprintf("read chapter: %v", err))
+		return
+	}
+	text := stripMarkdown(raw)
+	if text == "" {
+		fail("chapter text is empty after stripping markdown")
+		return
+	}
+
+	// Step 2: generate audio.
+	if r.deps.Kokoro == nil {
+		fail("kokoro client not configured")
+		return
+	}
+	audioData, err := r.deps.Kokoro.GenerateAudio(ctx, text, task.Voice)
+	if err != nil {
+		fail(fmt.Sprintf("kokoro generate: %v", err))
+		return
+	}
+
+	// Step 3: upload to MinIO.
+	key := r.deps.AudioStore.AudioObjectKey(task.Slug, task.Chapter, task.Voice)
+	if err := r.deps.AudioStore.PutAudio(ctx, key, audioData); err != nil {
+		fail(fmt.Sprintf("put audio: %v", err))
+		return
+	}
+
+	// Step 4: report success.
+	result := domain.AudioResult{ObjectKey: key}
+	if err := r.deps.Consumer.FinishAudioTask(ctx, task.ID, result); err != nil {
+		log.Error("runner: FinishAudioTask failed", "err", err)
+	}
+	log.Info("runner: audio task finished", "key", key)
+}

backend/internal/runner/runner_test.go

@@ -0,0 +1,365 @@
+package runner_test
+
+import (
+	"context"
+	"errors"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/runner"
+)
+
+// ── Stub types ────────────────────────────────────────────────────────────────
+
+// stubConsumer is a test double for taskqueue.Consumer.
+type stubConsumer struct {
+	scrapeQueue []domain.ScrapeTask
+	audioQueue  []domain.AudioTask
+	scrapeIdx   int
+	audioIdx    int
+	finished    []string
+	failCalled  []string
+	claimErr    error
+}
+
+func (s *stubConsumer) ClaimNextScrapeTask(_ context.Context, _ string) (domain.ScrapeTask, bool, error) {
+	if s.claimErr != nil {
+		return domain.ScrapeTask{}, false, s.claimErr
+	}
+	if s.scrapeIdx >= len(s.scrapeQueue) {
+		return domain.ScrapeTask{}, false, nil
+	}
+	t := s.scrapeQueue[s.scrapeIdx]
+	s.scrapeIdx++
+	return t, true, nil
+}
+
+func (s *stubConsumer) ClaimNextAudioTask(_ context.Context, _ string) (domain.AudioTask, bool, error) {
+	if s.claimErr != nil {
+		return domain.AudioTask{}, false, s.claimErr
+	}
+	if s.audioIdx >= len(s.audioQueue) {
+		return domain.AudioTask{}, false, nil
+	}
+	t := s.audioQueue[s.audioIdx]
+	s.audioIdx++
+	return t, true, nil
+}
+
+func (s *stubConsumer) FinishScrapeTask(_ context.Context, id string, _ domain.ScrapeResult) error {
+	s.finished = append(s.finished, id)
+	return nil
+}
+
+func (s *stubConsumer) FinishAudioTask(_ context.Context, id string, _ domain.AudioResult) error {
+	s.finished = append(s.finished, id)
+	return nil
+}
+
+func (s *stubConsumer) FailTask(_ context.Context, id, _ string) error {
+	s.failCalled = append(s.failCalled, id)
+	return nil
+}
+
+func (s *stubConsumer) HeartbeatTask(_ context.Context, _ string) error { return nil }
+
+func (s *stubConsumer) ReapStaleTasks(_ context.Context, _ time.Duration) (int, error) {
+	return 0, nil
+}
+
+// stubBookWriter satisfies bookstore.BookWriter (no-op).
+type stubBookWriter struct{}
+
+func (s *stubBookWriter) WriteMetadata(_ context.Context, _ domain.BookMeta) error { return nil }
+func (s *stubBookWriter) WriteChapter(_ context.Context, _ string, _ domain.Chapter) error {
+	return nil
+}
+func (s *stubBookWriter) WriteChapterRefs(_ context.Context, _ string, _ []domain.ChapterRef) error {
+	return nil
+}
+func (s *stubBookWriter) ChapterExists(_ context.Context, _ string, _ domain.ChapterRef) bool {
+	return false
+}
+
+// stubBookReader satisfies bookstore.BookReader — returns a single chapter.
+type stubBookReader struct {
+	text    string
+	readErr error
+}
+
+func (s *stubBookReader) ReadChapter(_ context.Context, _ string, _ int) (string, error) {
+	return s.text, s.readErr
+}
+func (s *stubBookReader) ReadMetadata(_ context.Context, _ string) (domain.BookMeta, bool, error) {
+	return domain.BookMeta{}, false, nil
+}
+func (s *stubBookReader) ListBooks(_ context.Context) ([]domain.BookMeta, error) { return nil, nil }
+func (s *stubBookReader) LocalSlugs(_ context.Context) (map[string]bool, error)  { return nil, nil }
+func (s *stubBookReader) MetadataMtime(_ context.Context, _ string) int64        { return 0 }
+func (s *stubBookReader) ListChapters(_ context.Context, _ string) ([]domain.ChapterInfo, error) {
+	return nil, nil
+}
+func (s *stubBookReader) CountChapters(_ context.Context, _ string) int { return 0 }
+func (s *stubBookReader) ReindexChapters(_ context.Context, _ string) (int, error) {
+	return 0, nil
+}
+
+// stubAudioStore satisfies bookstore.AudioStore.
+type stubAudioStore struct {
+	putCalled atomic.Int32
+	putErr    error
+}
+
+func (s *stubAudioStore) AudioObjectKey(slug string, n int, voice string) string {
+	return slug + "/" + string(rune('0'+n)) + "/" + voice + ".mp3"
+}
+func (s *stubAudioStore) AudioExists(_ context.Context, _ string) bool { return false }
+func (s *stubAudioStore) PutAudio(_ context.Context, _ string, _ []byte) error {
+	s.putCalled.Add(1)
+	return s.putErr
+}
+
+// stubNovelScraper satisfies scraper.NovelScraper minimally.
+type stubNovelScraper struct {
+	entries  []domain.CatalogueEntry
+	metaErr  error
+	chapters []domain.ChapterRef
+}
+
+func (s *stubNovelScraper) ScrapeCatalogue(_ context.Context) (<-chan domain.CatalogueEntry, <-chan error) {
+	ch := make(chan domain.CatalogueEntry, len(s.entries))
+	errCh := make(chan error, 1)
+	for _, e := range s.entries {
+		ch <- e
+	}
+	close(ch)
+	close(errCh)
+	return ch, errCh
+}
+
+func (s *stubNovelScraper) ScrapeMetadata(_ context.Context, _ string) (domain.BookMeta, error) {
+	if s.metaErr != nil {
+		return domain.BookMeta{}, s.metaErr
+	}
+	return domain.BookMeta{Slug: "test-book", Title: "Test Book", SourceURL: "https://example.com/book/test-book"}, nil
+}
+
+func (s *stubNovelScraper) ScrapeChapterList(_ context.Context, _ string) ([]domain.ChapterRef, error) {
+	return s.chapters, nil
+}
+
+func (s *stubNovelScraper) ScrapeChapterText(_ context.Context, ref domain.ChapterRef) (domain.Chapter, error) {
+	return domain.Chapter{Ref: ref, Text: "# Chapter\n\nSome text."}, nil
+}
+
+func (s *stubNovelScraper) ScrapeRanking(_ context.Context, _ int) (<-chan domain.BookMeta, <-chan error) {
+	ch := make(chan domain.BookMeta)
+	errCh := make(chan error, 1)
+	close(ch)
+	close(errCh)
+	return ch, errCh
+}
+
+func (s *stubNovelScraper) SourceName() string { return "stub" }
+
+// stubKokoro satisfies kokoro.Client.
+type stubKokoro struct {
+	data   []byte
+	genErr error
+	called atomic.Int32
+}
+
+func (s *stubKokoro) GenerateAudio(_ context.Context, _, _ string) ([]byte, error) {
+	s.called.Add(1)
+	return s.data, s.genErr
+}
+
+func (s *stubKokoro) ListVoices(_ context.Context) ([]string, error) {
+	return []string{"af_bella"}, nil
+}
+
+// ── stripMarkdown helper ──────────────────────────────────────────────────────
+
+func TestStripMarkdownViaAudioTask(t *testing.T) {
+	// Verify markdown is stripped before sending to Kokoro.
+	// We inject chapter text with markdown; the kokoro stub verifies data flows.
+	consumer := &stubConsumer{
+		audioQueue: []domain.AudioTask{
+			{ID: "a1", Slug: "book", Chapter: 1, Voice: "af_bella", Status: domain.TaskStatusRunning},
+		},
+	}
+	bookReader := &stubBookReader{text: "## Chapter 1\n\nPlain **text** here."}
+	audioStore := &stubAudioStore{}
+	kokoroStub := &stubKokoro{data: []byte("mp3")}
+
+	cfg := runner.Config{
+		WorkerID:     "test",
+		PollInterval: time.Hour, // long poll — we'll cancel manually
+	}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: bookReader,
+		AudioStore: audioStore,
+		Novel:      &stubNovelScraper{},
+		Kokoro:     kokoroStub,
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_ = r.Run(ctx)
+
+	if kokoroStub.called.Load() != 1 {
+		t.Errorf("expected Kokoro.GenerateAudio called once, got %d", kokoroStub.called.Load())
+	}
+	if audioStore.putCalled.Load() != 1 {
+		t.Errorf("expected PutAudio called once, got %d", audioStore.putCalled.Load())
+	}
+}
+
+func TestAudioTask_ReadChapterError(t *testing.T) {
+	consumer := &stubConsumer{
+		audioQueue: []domain.AudioTask{
+			{ID: "a2", Slug: "book", Chapter: 2, Voice: "af_bella", Status: domain.TaskStatusRunning},
+		},
+	}
+	bookReader := &stubBookReader{readErr: errors.New("chapter not found")}
+	audioStore := &stubAudioStore{}
+	kokoroStub := &stubKokoro{data: []byte("mp3")}
+
+	cfg := runner.Config{WorkerID: "test", PollInterval: time.Hour}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: bookReader,
+		AudioStore: audioStore,
+		Novel:      &stubNovelScraper{},
+		Kokoro:     kokoroStub,
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_ = r.Run(ctx)
+
+	// Kokoro should not be called; FinishAudioTask should be called with error.
+	if kokoroStub.called.Load() != 0 {
+		t.Errorf("expected Kokoro not called, got %d", kokoroStub.called.Load())
+	}
+	if len(consumer.finished) != 1 {
+		t.Errorf("expected FinishAudioTask called once, got %d", len(consumer.finished))
+	}
+}
+
+func TestAudioTask_KokoroError(t *testing.T) {
+	consumer := &stubConsumer{
+		audioQueue: []domain.AudioTask{
+			{ID: "a3", Slug: "book", Chapter: 3, Voice: "af_bella", Status: domain.TaskStatusRunning},
+		},
+	}
+	bookReader := &stubBookReader{text: "Chapter text."}
+	audioStore := &stubAudioStore{}
+	kokoroStub := &stubKokoro{genErr: errors.New("tts failed")}
+
+	cfg := runner.Config{WorkerID: "test", PollInterval: time.Hour}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: bookReader,
+		AudioStore: audioStore,
+		Novel:      &stubNovelScraper{},
+		Kokoro:     kokoroStub,
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_ = r.Run(ctx)
+
+	if audioStore.putCalled.Load() != 0 {
+		t.Errorf("expected PutAudio not called, got %d", audioStore.putCalled.Load())
+	}
+	if len(consumer.finished) != 1 {
+		t.Errorf("expected FinishAudioTask called once, got %d", len(consumer.finished))
+	}
+}
+
+func TestScrapeTask_BookKind(t *testing.T) {
+	consumer := &stubConsumer{
+		scrapeQueue: []domain.ScrapeTask{
+			{ID: "s1", Kind: "book", TargetURL: "https://example.com/book/test-book", Status: domain.TaskStatusRunning},
+		},
+	}
+
+	cfg := runner.Config{WorkerID: "test", PollInterval: time.Hour}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: &stubBookReader{},
+		AudioStore: &stubAudioStore{},
+		Novel:      &stubNovelScraper{},
+		Kokoro:     &stubKokoro{},
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_ = r.Run(ctx)
+
+	if len(consumer.finished) != 1 || consumer.finished[0] != "s1" {
+		t.Errorf("expected task s1 finished, got %v", consumer.finished)
+	}
+}
+
+func TestScrapeTask_UnknownKind(t *testing.T) {
+	consumer := &stubConsumer{
+		scrapeQueue: []domain.ScrapeTask{
+			{ID: "s2", Kind: "unknown_kind", Status: domain.TaskStatusRunning},
+		},
+	}
+
+	cfg := runner.Config{WorkerID: "test", PollInterval: time.Hour}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: &stubBookReader{},
+		AudioStore: &stubAudioStore{},
+		Novel:      &stubNovelScraper{},
+		Kokoro:     &stubKokoro{},
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_ = r.Run(ctx)
+
+	// Unknown kind still finishes the task (with error message in result).
+	if len(consumer.finished) != 1 || consumer.finished[0] != "s2" {
+		t.Errorf("expected task s2 finished, got %v", consumer.finished)
+	}
+}
+
+func TestRun_CancelImmediately(t *testing.T) {
+	consumer := &stubConsumer{}
+	cfg := runner.Config{WorkerID: "test", PollInterval: 10 * time.Millisecond}
+	deps := runner.Dependencies{
+		Consumer:   consumer,
+		BookWriter: &stubBookWriter{},
+		BookReader: &stubBookReader{},
+		AudioStore: &stubAudioStore{},
+		Novel:      &stubNovelScraper{},
+		Kokoro:     &stubKokoro{},
+	}
+
+	r := runner.New(cfg, deps)
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // cancel before Run
+
+	err := r.Run(ctx)
+	if err != nil {
+		t.Errorf("expected nil on graceful shutdown, got %v", err)
+	}
+}

backend/internal/scraper/scraper.go

@@ -0,0 +1,58 @@
+// Package scraper defines the NovelScraper interface and its sub-interfaces.
+// Domain types live in internal/domain — this package only defines the scraping
+// contract so that novelfire and any future scrapers can be swapped freely.
+package scraper
+
+import (
+	"context"
+
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// CatalogueProvider can enumerate every novel available on a source site.
+type CatalogueProvider interface {
+	ScrapeCatalogue(ctx context.Context) (<-chan domain.CatalogueEntry, <-chan error)
+}
+
+// MetadataProvider can extract structured book metadata from a novel's landing page.
+type MetadataProvider interface {
+	ScrapeMetadata(ctx context.Context, bookURL string) (domain.BookMeta, error)
+}
+
+// ChapterListProvider can enumerate all chapters of a book.
+type ChapterListProvider interface {
+	ScrapeChapterList(ctx context.Context, bookURL string) ([]domain.ChapterRef, error)
+}
+
+// ChapterTextProvider can extract the readable text from a single chapter page.
+type ChapterTextProvider interface {
+	ScrapeChapterText(ctx context.Context, ref domain.ChapterRef) (domain.Chapter, error)
+}
+
+// RankingProvider can enumerate novels from a ranking page.
+type RankingProvider interface {
+	// ScrapeRanking pages through up to maxPages ranking pages.
+	// maxPages <= 0 means all pages.
+	ScrapeRanking(ctx context.Context, maxPages int) (<-chan domain.BookMeta, <-chan error)
+}
+
+// NovelScraper is the full interface a concrete novel source must implement.
+type NovelScraper interface {
+	CatalogueProvider
+	MetadataProvider
+	ChapterListProvider
+	ChapterTextProvider
+	RankingProvider
+
+	// SourceName returns the human-readable name of this scraper, e.g. "novelfire.net".
+	SourceName() string
+}
+
+// Selector describes how to locate an element in an HTML document.
+type Selector struct {
+	Tag      string
+	Class    string
+	ID       string
+	Attr     string
+	Multiple bool
+}

backend/internal/storage/minio.go

@@ -0,0 +1,222 @@
+package storage
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/url"
+	"path"
+	"strings"
+	"time"
+
+	minio "github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+
+	"github.com/libnovel/backend/internal/config"
+)
+
+// minioClient wraps the official minio-go client with bucket names.
+type minioClient struct {
+	client         *minio.Client // internal — all read/write operations
+	pubClient      *minio.Client // presign-only — initialised against the public endpoint
+	bucketChapters string
+	bucketAudio    string
+	bucketAvatars  string
+	bucketBrowse   string
+}
+
+func newMinioClient(cfg config.MinIO) (*minioClient, error) {
+	creds := credentials.NewStaticV4(cfg.AccessKey, cfg.SecretKey, "")
+
+	internal, err := minio.New(cfg.Endpoint, &minio.Options{
+		Creds:  creds,
+		Secure: cfg.UseSSL,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("minio: init internal client: %w", err)
+	}
+
+	// Presigned URLs must be signed with the hostname the browser will use
+	// (PUBLIC_MINIO_PUBLIC_URL), because AWS Signature V4 includes the Host
+	// header in the canonical request — a URL signed against "minio:9000" will
+	// return SignatureDoesNotMatch when the browser fetches it from
+	// "localhost:9000".
+	//
+	// However, minio-go normally makes a live BucketLocation HTTP call before
+	// signing, which would fail from inside the container when the public
+	// endpoint is externally-facing (e.g. "localhost:9000" is unreachable from
+	// within Docker).  We prevent this by:
+	//   1. Setting Region: "us-east-1" — minio-go skips getBucketLocation when
+	//      the region is already known (bucket-cache.go:49).
+	//   2. Setting BucketLookup: BucketLookupPath — forces path-style URLs
+	//      (e.g. host/bucket/key), matching MinIO's default behaviour and
+	//      avoiding any virtual-host DNS probing.
+	//
+	// When no public endpoint is configured (or it equals the internal one),
+	// fall back to the internal client so presigning still works.
+	publicEndpoint := cfg.PublicEndpoint
+	if u, err2 := url.Parse(publicEndpoint); err2 == nil && u.Host != "" {
+		publicEndpoint = u.Host // strip scheme so minio.New is happy
+	}
+	pubUseSSL := cfg.PublicUseSSL
+	if publicEndpoint == "" || publicEndpoint == cfg.Endpoint {
+		publicEndpoint = cfg.Endpoint
+		pubUseSSL = cfg.UseSSL
+	}
+	pub, err := minio.New(publicEndpoint, &minio.Options{
+		Creds:        creds,
+		Secure:       pubUseSSL,
+		Region:       "us-east-1", // skip live BucketLocation preflight
+		BucketLookup: minio.BucketLookupPath,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("minio: init public client: %w", err)
+	}
+
+	return &minioClient{
+		client:         internal,
+		pubClient:      pub,
+		bucketChapters: cfg.BucketChapters,
+		bucketAudio:    cfg.BucketAudio,
+		bucketAvatars:  cfg.BucketAvatars,
+		bucketBrowse:   cfg.BucketBrowse,
+	}, nil
+}
+
+// ensureBuckets creates all required buckets if they don't already exist.
+func (m *minioClient) ensureBuckets(ctx context.Context) error {
+	for _, bucket := range []string{m.bucketChapters, m.bucketAudio, m.bucketAvatars, m.bucketBrowse} {
+		exists, err := m.client.BucketExists(ctx, bucket)
+		if err != nil {
+			return fmt.Errorf("minio: check bucket %q: %w", bucket, err)
+		}
+		if !exists {
+			if err := m.client.MakeBucket(ctx, bucket, minio.MakeBucketOptions{}); err != nil {
+				return fmt.Errorf("minio: create bucket %q: %w", bucket, err)
+			}
+		}
+	}
+	return nil
+}
+
+// ── Key helpers ───────────────────────────────────────────────────────────────
+
+// ChapterObjectKey returns the MinIO object key for a chapter markdown file.
+// Format: {slug}/chapter-{n:06d}.md
+func ChapterObjectKey(slug string, n int) string {
+	return fmt.Sprintf("%s/chapter-%06d.md", slug, n)
+}
+
+// AudioObjectKey returns the MinIO object key for a cached audio file.
+// Format: {slug}/{n}/{voice}.mp3
+func AudioObjectKey(slug string, n int, voice string) string {
+	return fmt.Sprintf("%s/%d/%s.mp3", slug, n, voice)
+}
+
+// AvatarObjectKey returns the MinIO object key for a user avatar image.
+// Format: {userID}/{ext}.{ext}
+func AvatarObjectKey(userID, ext string) string {
+	return fmt.Sprintf("%s/%s.%s", userID, ext, ext)
+}
+
+// BrowseObjectKey returns the MinIO object key for a cached browse page snapshot.
+// Format: browse/{genre}/{sort}/{status}/{type}/page-{n}.json
+func BrowseObjectKey(genre, sort, status, novelType string, page int) string {
+	return fmt.Sprintf("browse/%s/%s/%s/%s/page-%d.json", genre, sort, status, novelType, page)
+}
+
+// chapterNumberFromKey extracts the chapter number from a MinIO object key.
+// e.g. "my-book/chapter-000042.md" → 42
+func chapterNumberFromKey(key string) int {
+	base := path.Base(key)
+	base = strings.TrimPrefix(base, "chapter-")
+	base = strings.TrimSuffix(base, ".md")
+	var n int
+	fmt.Sscanf(base, "%d", &n)
+	return n
+}
+
+// ── Object operations ─────────────────────────────────────────────────────────
+
+func (m *minioClient) putObject(ctx context.Context, bucket, key, contentType string, data []byte) error {
+	_, err := m.client.PutObject(ctx, bucket, key,
+		strings.NewReader(string(data)),
+		int64(len(data)),
+		minio.PutObjectOptions{ContentType: contentType},
+	)
+	return err
+}
+
+func (m *minioClient) getObject(ctx context.Context, bucket, key string) ([]byte, error) {
+	obj, err := m.client.GetObject(ctx, bucket, key, minio.GetObjectOptions{})
+	if err != nil {
+		return nil, err
+	}
+	defer obj.Close()
+	return io.ReadAll(obj)
+}
+
+func (m *minioClient) objectExists(ctx context.Context, bucket, key string) bool {
+	_, err := m.client.StatObject(ctx, bucket, key, minio.StatObjectOptions{})
+	return err == nil
+}
+
+func (m *minioClient) presignGet(ctx context.Context, bucket, key string, expires time.Duration) (string, error) {
+	u, err := m.pubClient.PresignedGetObject(ctx, bucket, key, expires, nil)
+	if err != nil {
+		return "", fmt.Errorf("minio presign %s/%s: %w", bucket, key, err)
+	}
+	return u.String(), nil
+}
+
+func (m *minioClient) presignPut(ctx context.Context, bucket, key string, expires time.Duration) (string, error) {
+	u, err := m.pubClient.PresignedPutObject(ctx, bucket, key, expires)
+	if err != nil {
+		return "", fmt.Errorf("minio presign PUT %s/%s: %w", bucket, key, err)
+	}
+	return u.String(), nil
+}
+
+func (m *minioClient) deleteObjects(ctx context.Context, bucket, prefix string) error {
+	objCh := m.client.ListObjects(ctx, bucket, minio.ListObjectsOptions{Prefix: prefix})
+	for obj := range objCh {
+		if obj.Err != nil {
+			return obj.Err
+		}
+		if err := m.client.RemoveObject(ctx, bucket, obj.Key, minio.RemoveObjectOptions{}); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (m *minioClient) listObjectKeys(ctx context.Context, bucket, prefix string) ([]string, error) {
+	var keys []string
+	for obj := range m.client.ListObjects(ctx, bucket, minio.ListObjectsOptions{Prefix: prefix}) {
+		if obj.Err != nil {
+			return nil, obj.Err
+		}
+		keys = append(keys, obj.Key)
+	}
+	return keys, nil
+}
+
+// ── Browse operations ─────────────────────────────────────────────────────────
+
+// putBrowse stores raw JSON bytes for a browse page snapshot.
+func (m *minioClient) putBrowse(ctx context.Context, key string, data []byte) error {
+	return m.putObject(ctx, m.bucketBrowse, key, "application/json", data)
+}
+
+// getBrowse retrieves a browse page snapshot. Returns (nil, false, nil) when
+// the object does not exist.
+func (m *minioClient) getBrowse(ctx context.Context, key string) ([]byte, bool, error) {
+	if !m.objectExists(ctx, m.bucketBrowse, key) {
+		return nil, false, nil
+	}
+	data, err := m.getObject(ctx, m.bucketBrowse, key)
+	if err != nil {
+		return nil, false, err
+	}
+	return data, true, nil
+}

backend/internal/storage/pocketbase.go

@@ -0,0 +1,268 @@
+// Package storage provides the concrete implementations of all bookstore and
+// taskqueue interfaces backed by PocketBase (structured data) and MinIO (blobs).
+//
+// Entry point: NewStore(ctx, cfg, log) returns a *Store that satisfies every
+// interface defined in bookstore and taskqueue.
+package storage
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/libnovel/backend/internal/config"
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// ErrNotFound is returned by single-record lookups when no record exists.
+var ErrNotFound = errors.New("storage: record not found")
+
+// pbClient is the internal PocketBase REST admin client.
+type pbClient struct {
+	baseURL  string
+	email    string
+	password string
+	log      *slog.Logger
+
+	mu    sync.Mutex
+	token string
+	exp   time.Time
+}
+
+func newPBClient(cfg config.PocketBase, log *slog.Logger) *pbClient {
+	return &pbClient{
+		baseURL:  strings.TrimRight(cfg.URL, "/"),
+		email:    cfg.AdminEmail,
+		password: cfg.AdminPassword,
+		log:      log,
+	}
+}
+
+// authToken returns a valid admin auth token, refreshing it when expired.
+func (c *pbClient) authToken(ctx context.Context) (string, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.token != "" && time.Now().Before(c.exp) {
+		return c.token, nil
+	}
+
+	body, _ := json.Marshal(map[string]string{
+		"identity": c.email,
+		"password": c.password,
+	})
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost,
+		c.baseURL+"/api/collections/_superusers/auth-with-password", bytes.NewReader(body))
+	if err != nil {
+		return "", fmt.Errorf("pb auth: build request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("pb auth: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		raw, _ := io.ReadAll(resp.Body)
+		return "", fmt.Errorf("pb auth: status %d: %s", resp.StatusCode, string(raw))
+	}
+
+	var payload struct {
+		Token string `json:"token"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&payload); err != nil {
+		return "", fmt.Errorf("pb auth: decode: %w", err)
+	}
+	c.token = payload.Token
+	c.exp = time.Now().Add(30 * time.Minute)
+	return c.token, nil
+}
+
+// do executes an authenticated PocketBase REST request.
+func (c *pbClient) do(ctx context.Context, method, path string, body io.Reader) (*http.Response, error) {
+	tok, err := c.authToken(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequestWithContext(ctx, method, c.baseURL+path, body)
+	if err != nil {
+		return nil, fmt.Errorf("pb: build request %s %s: %w", method, path, err)
+	}
+	req.Header.Set("Authorization", tok)
+	if body != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("pb: %s %s: %w", method, path, err)
+	}
+	return resp, nil
+}
+
+// get is a convenience wrapper that decodes a JSON response into v.
+func (c *pbClient) get(ctx context.Context, path string, v any) error {
+	resp, err := c.do(ctx, http.MethodGet, path, nil)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusNotFound {
+		return ErrNotFound
+	}
+	if resp.StatusCode >= 400 {
+		raw, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("pb GET %s: status %d: %s", path, resp.StatusCode, string(raw))
+	}
+	return json.NewDecoder(resp.Body).Decode(v)
+}
+
+// post creates a record and decodes the created record into v.
+func (c *pbClient) post(ctx context.Context, path string, payload, v any) error {
+	b, err := json.Marshal(payload)
+	if err != nil {
+		return fmt.Errorf("pb: marshal: %w", err)
+	}
+	resp, err := c.do(ctx, http.MethodPost, path, bytes.NewReader(b))
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		raw, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("pb POST %s: status %d: %s", path, resp.StatusCode, string(raw))
+	}
+	if v != nil {
+		return json.NewDecoder(resp.Body).Decode(v)
+	}
+	return nil
+}
+
+// patch updates a record.
+func (c *pbClient) patch(ctx context.Context, path string, payload any) error {
+	b, err := json.Marshal(payload)
+	if err != nil {
+		return fmt.Errorf("pb: marshal: %w", err)
+	}
+	resp, err := c.do(ctx, http.MethodPatch, path, bytes.NewReader(b))
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		raw, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("pb PATCH %s: status %d: %s", path, resp.StatusCode, string(raw))
+	}
+	return nil
+}
+
+// delete removes a record.
+func (c *pbClient) delete(ctx context.Context, path string) error {
+	resp, err := c.do(ctx, http.MethodDelete, path, nil)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusNotFound {
+		return ErrNotFound
+	}
+	if resp.StatusCode >= 400 {
+		raw, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("pb DELETE %s: status %d: %s", path, resp.StatusCode, string(raw))
+	}
+	return nil
+}
+
+// listAll fetches all pages of a collection. PocketBase returns at most 200
+// records per page; we paginate until empty.
+func (c *pbClient) listAll(ctx context.Context, collection string, filter, sort string) ([]json.RawMessage, error) {
+	var all []json.RawMessage
+	page := 1
+	for {
+		q := url.Values{
+			"page":    {fmt.Sprintf("%d", page)},
+			"perPage": {"200"},
+		}
+		if filter != "" {
+			q.Set("filter", filter)
+		}
+		if sort != "" {
+			q.Set("sort", sort)
+		}
+		path := fmt.Sprintf("/api/collections/%s/records?%s", collection, q.Encode())
+
+		var result struct {
+			Items []json.RawMessage `json:"items"`
+			Page  int               `json:"page"`
+			Pages int               `json:"totalPages"`
+		}
+		if err := c.get(ctx, path, &result); err != nil {
+			return nil, err
+		}
+		all = append(all, result.Items...)
+		if result.Page >= result.Pages {
+			break
+		}
+		page++
+	}
+	return all, nil
+}
+
+// claimRecord atomically claims the first pending record matching collection.
+// It fetches the oldest pending record (filter + sort), then PATCHes it with
+// the claim payload. Returns (nil, nil) when the queue is empty.
+func (c *pbClient) claimRecord(ctx context.Context, collection, workerID string, extraClaim map[string]any) (json.RawMessage, error) {
+	q := url.Values{}
+	q.Set("filter", `status="pending"`)
+	q.Set("sort", "+started")
+	q.Set("perPage", "1")
+	path := fmt.Sprintf("/api/collections/%s/records?%s", collection, q.Encode())
+
+	var result struct {
+		Items []json.RawMessage `json:"items"`
+	}
+	if err := c.get(ctx, path, &result); err != nil {
+		return nil, fmt.Errorf("claimRecord list: %w", err)
+	}
+	if len(result.Items) == 0 {
+		return nil, nil // queue empty
+	}
+
+	var rec struct {
+		ID string `json:"id"`
+	}
+	if err := json.Unmarshal(result.Items[0], &rec); err != nil {
+		return nil, fmt.Errorf("claimRecord parse id: %w", err)
+	}
+
+	claim := map[string]any{
+		"status":    string(domain.TaskStatusRunning),
+		"worker_id": workerID,
+	}
+	for k, v := range extraClaim {
+		claim[k] = v
+	}
+
+	claimPath := fmt.Sprintf("/api/collections/%s/records/%s", collection, rec.ID)
+	if err := c.patch(ctx, claimPath, claim); err != nil {
+		return nil, fmt.Errorf("claimRecord patch: %w", err)
+	}
+
+	// Re-fetch the updated record so caller has current state.
+	var updated json.RawMessage
+	if err := c.get(ctx, claimPath, &updated); err != nil {
+		return nil, fmt.Errorf("claimRecord re-fetch: %w", err)
+	}
+	return updated, nil
+}

backend/internal/storage/store.go

@@ -0,0 +1,790 @@
+package storage
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"strings"
+	"time"
+
+	"github.com/libnovel/backend/internal/bookstore"
+	"github.com/libnovel/backend/internal/config"
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/taskqueue"
+)
+
+// Store is the unified persistence implementation that satisfies all bookstore
+// and taskqueue interfaces. It routes structured data to PocketBase and binary
+// blobs to MinIO.
+type Store struct {
+	pb  *pbClient
+	mc  *minioClient
+	log *slog.Logger
+}
+
+// NewStore initialises PocketBase and MinIO connections and ensures all MinIO
+// buckets exist. Returns a ready-to-use Store.
+func NewStore(ctx context.Context, cfg config.Config, log *slog.Logger) (*Store, error) {
+	pb := newPBClient(cfg.PocketBase, log)
+	// Validate PocketBase connectivity by fetching an auth token.
+	if _, err := pb.authToken(ctx); err != nil {
+		return nil, fmt.Errorf("pocketbase: %w", err)
+	}
+
+	mc, err := newMinioClient(cfg.MinIO)
+	if err != nil {
+		return nil, fmt.Errorf("minio: %w", err)
+	}
+	if err := mc.ensureBuckets(ctx); err != nil {
+		return nil, fmt.Errorf("minio: ensure buckets: %w", err)
+	}
+
+	return &Store{pb: pb, mc: mc, log: log}, nil
+}
+
+// Compile-time interface satisfaction.
+var _ bookstore.BookWriter = (*Store)(nil)
+var _ bookstore.BookReader = (*Store)(nil)
+var _ bookstore.RankingStore = (*Store)(nil)
+var _ bookstore.AudioStore = (*Store)(nil)
+var _ bookstore.PresignStore = (*Store)(nil)
+var _ bookstore.ProgressStore = (*Store)(nil)
+var _ bookstore.BrowseStore = (*Store)(nil)
+var _ taskqueue.Producer = (*Store)(nil)
+var _ taskqueue.Consumer = (*Store)(nil)
+var _ taskqueue.Reader = (*Store)(nil)
+
+// ── BookWriter ────────────────────────────────────────────────────────────────
+
+func (s *Store) WriteMetadata(ctx context.Context, meta domain.BookMeta) error {
+	payload := map[string]any{
+		"slug":           meta.Slug,
+		"title":          meta.Title,
+		"author":         meta.Author,
+		"cover":          meta.Cover,
+		"status":         meta.Status,
+		"genres":         meta.Genres,
+		"summary":        meta.Summary,
+		"total_chapters": meta.TotalChapters,
+		"source_url":     meta.SourceURL,
+		"ranking":        meta.Ranking,
+	}
+	// Upsert via filter: if exists PATCH, otherwise POST.
+	existing, err := s.getBookBySlug(ctx, meta.Slug)
+	if err != nil && err != ErrNotFound {
+		return fmt.Errorf("WriteMetadata: %w", err)
+	}
+	if err == ErrNotFound {
+		return s.pb.post(ctx, "/api/collections/books/records", payload, nil)
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/books/records/%s", existing.ID), payload)
+}
+
+func (s *Store) WriteChapter(ctx context.Context, slug string, chapter domain.Chapter) error {
+	key := ChapterObjectKey(slug, chapter.Ref.Number)
+	if err := s.mc.putObject(ctx, s.mc.bucketChapters, key, "text/markdown", []byte(chapter.Text)); err != nil {
+		return fmt.Errorf("WriteChapter: minio: %w", err)
+	}
+	// Upsert the chapters_idx record in PocketBase.
+	return s.upsertChapterIdx(ctx, slug, chapter.Ref)
+}
+
+func (s *Store) WriteChapterRefs(ctx context.Context, slug string, refs []domain.ChapterRef) error {
+	for _, ref := range refs {
+		if err := s.upsertChapterIdx(ctx, slug, ref); err != nil {
+			s.log.Warn("WriteChapterRefs: upsert failed", "slug", slug, "chapter", ref.Number, "err", err)
+		}
+	}
+	return nil
+}
+
+func (s *Store) ChapterExists(ctx context.Context, slug string, ref domain.ChapterRef) bool {
+	return s.mc.objectExists(ctx, s.mc.bucketChapters, ChapterObjectKey(slug, ref.Number))
+}
+
+func (s *Store) upsertChapterIdx(ctx context.Context, slug string, ref domain.ChapterRef) error {
+	payload := map[string]any{
+		"slug":   slug,
+		"number": ref.Number,
+		"title":  ref.Title,
+	}
+	filter := fmt.Sprintf(`slug=%q&&number=%d`, slug, ref.Number)
+	items, err := s.pb.listAll(ctx, "chapters_idx", filter, "")
+	if err != nil && err != ErrNotFound {
+		return err
+	}
+	if len(items) == 0 {
+		return s.pb.post(ctx, "/api/collections/chapters_idx/records", payload, nil)
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	json.Unmarshal(items[0], &rec)
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/chapters_idx/records/%s", rec.ID), payload)
+}
+
+// ── BookReader ────────────────────────────────────────────────────────────────
+
+type pbBook struct {
+	ID            string   `json:"id"`
+	Slug          string   `json:"slug"`
+	Title         string   `json:"title"`
+	Author        string   `json:"author"`
+	Cover         string   `json:"cover"`
+	Status        string   `json:"status"`
+	Genres        []string `json:"genres"`
+	Summary       string   `json:"summary"`
+	TotalChapters int      `json:"total_chapters"`
+	SourceURL     string   `json:"source_url"`
+	Ranking       int      `json:"ranking"`
+	Updated       string   `json:"updated"`
+}
+
+func (b pbBook) toDomain() domain.BookMeta {
+	return domain.BookMeta{
+		Slug:          b.Slug,
+		Title:         b.Title,
+		Author:        b.Author,
+		Cover:         b.Cover,
+		Status:        b.Status,
+		Genres:        b.Genres,
+		Summary:       b.Summary,
+		TotalChapters: b.TotalChapters,
+		SourceURL:     b.SourceURL,
+		Ranking:       b.Ranking,
+	}
+}
+
+func (s *Store) getBookBySlug(ctx context.Context, slug string) (pbBook, error) {
+	filter := fmt.Sprintf(`slug=%q`, slug)
+	items, err := s.pb.listAll(ctx, "books", filter, "")
+	if err != nil {
+		return pbBook{}, err
+	}
+	if len(items) == 0 {
+		return pbBook{}, ErrNotFound
+	}
+	var b pbBook
+	json.Unmarshal(items[0], &b)
+	return b, nil
+}
+
+func (s *Store) ReadMetadata(ctx context.Context, slug string) (domain.BookMeta, bool, error) {
+	b, err := s.getBookBySlug(ctx, slug)
+	if err == ErrNotFound {
+		return domain.BookMeta{}, false, nil
+	}
+	if err != nil {
+		return domain.BookMeta{}, false, err
+	}
+	return b.toDomain(), true, nil
+}
+
+func (s *Store) ListBooks(ctx context.Context) ([]domain.BookMeta, error) {
+	items, err := s.pb.listAll(ctx, "books", "", "title")
+	if err != nil {
+		return nil, err
+	}
+	books := make([]domain.BookMeta, 0, len(items))
+	for _, raw := range items {
+		var b pbBook
+		json.Unmarshal(raw, &b)
+		books = append(books, b.toDomain())
+	}
+	return books, nil
+}
+
+func (s *Store) LocalSlugs(ctx context.Context) (map[string]bool, error) {
+	items, err := s.pb.listAll(ctx, "books", "", "")
+	if err != nil {
+		return nil, err
+	}
+	slugs := make(map[string]bool, len(items))
+	for _, raw := range items {
+		var b struct {
+			Slug string `json:"slug"`
+		}
+		json.Unmarshal(raw, &b)
+		if b.Slug != "" {
+			slugs[b.Slug] = true
+		}
+	}
+	return slugs, nil
+}
+
+func (s *Store) MetadataMtime(ctx context.Context, slug string) int64 {
+	b, err := s.getBookBySlug(ctx, slug)
+	if err != nil {
+		return 0
+	}
+	t, err := time.Parse(time.RFC3339, b.Updated)
+	if err != nil {
+		return 0
+	}
+	return t.Unix()
+}
+
+func (s *Store) ReadChapter(ctx context.Context, slug string, n int) (string, error) {
+	data, err := s.mc.getObject(ctx, s.mc.bucketChapters, ChapterObjectKey(slug, n))
+	if err != nil {
+		return "", fmt.Errorf("ReadChapter: %w", err)
+	}
+	return string(data), nil
+}
+
+func (s *Store) ListChapters(ctx context.Context, slug string) ([]domain.ChapterInfo, error) {
+	filter := fmt.Sprintf(`slug=%q`, slug)
+	items, err := s.pb.listAll(ctx, "chapters_idx", filter, "number")
+	if err != nil {
+		return nil, err
+	}
+	chapters := make([]domain.ChapterInfo, 0, len(items))
+	for _, raw := range items {
+		var rec struct {
+			Number int    `json:"number"`
+			Title  string `json:"title"`
+		}
+		json.Unmarshal(raw, &rec)
+		chapters = append(chapters, domain.ChapterInfo{Number: rec.Number, Title: rec.Title})
+	}
+	return chapters, nil
+}
+
+func (s *Store) CountChapters(ctx context.Context, slug string) int {
+	chapters, err := s.ListChapters(ctx, slug)
+	if err != nil {
+		return 0
+	}
+	return len(chapters)
+}
+
+func (s *Store) ReindexChapters(ctx context.Context, slug string) (int, error) {
+	keys, err := s.mc.listObjectKeys(ctx, s.mc.bucketChapters, slug+"/")
+	if err != nil {
+		return 0, fmt.Errorf("ReindexChapters: list objects: %w", err)
+	}
+	count := 0
+	for _, key := range keys {
+		if !strings.HasSuffix(key, ".md") {
+			continue
+		}
+		n := chapterNumberFromKey(key)
+		if n == 0 {
+			continue
+		}
+		ref := domain.ChapterRef{Number: n}
+		if err := s.upsertChapterIdx(ctx, slug, ref); err != nil {
+			s.log.Warn("ReindexChapters: upsert failed", "key", key, "err", err)
+			continue
+		}
+		count++
+	}
+	return count, nil
+}
+
+// ── RankingStore ──────────────────────────────────────────────────────────────
+
+func (s *Store) WriteRankingItem(ctx context.Context, item domain.RankingItem) error {
+	payload := map[string]any{
+		"rank":       item.Rank,
+		"slug":       item.Slug,
+		"title":      item.Title,
+		"author":     item.Author,
+		"cover":      item.Cover,
+		"status":     item.Status,
+		"genres":     item.Genres,
+		"source_url": item.SourceURL,
+	}
+	filter := fmt.Sprintf(`slug=%q`, item.Slug)
+	items, err := s.pb.listAll(ctx, "ranking", filter, "")
+	if err != nil && err != ErrNotFound {
+		return err
+	}
+	if len(items) == 0 {
+		return s.pb.post(ctx, "/api/collections/ranking/records", payload, nil)
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	json.Unmarshal(items[0], &rec)
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/ranking/records/%s", rec.ID), payload)
+}
+
+func (s *Store) ReadRankingItems(ctx context.Context) ([]domain.RankingItem, error) {
+	items, err := s.pb.listAll(ctx, "ranking", "", "rank")
+	if err != nil {
+		return nil, err
+	}
+	result := make([]domain.RankingItem, 0, len(items))
+	for _, raw := range items {
+		var rec struct {
+			Rank      int      `json:"rank"`
+			Slug      string   `json:"slug"`
+			Title     string   `json:"title"`
+			Author    string   `json:"author"`
+			Cover     string   `json:"cover"`
+			Status    string   `json:"status"`
+			Genres    []string `json:"genres"`
+			SourceURL string   `json:"source_url"`
+			Updated   string   `json:"updated"`
+		}
+		json.Unmarshal(raw, &rec)
+		t, _ := time.Parse(time.RFC3339, rec.Updated)
+		result = append(result, domain.RankingItem{
+			Rank:      rec.Rank,
+			Slug:      rec.Slug,
+			Title:     rec.Title,
+			Author:    rec.Author,
+			Cover:     rec.Cover,
+			Status:    rec.Status,
+			Genres:    rec.Genres,
+			SourceURL: rec.SourceURL,
+			Updated:   t,
+		})
+	}
+	return result, nil
+}
+
+func (s *Store) RankingFreshEnough(ctx context.Context, maxAge time.Duration) (bool, error) {
+	items, err := s.ReadRankingItems(ctx)
+	if err != nil || len(items) == 0 {
+		return false, err
+	}
+	var latest time.Time
+	for _, item := range items {
+		if item.Updated.After(latest) {
+			latest = item.Updated
+		}
+	}
+	return time.Since(latest) < maxAge, nil
+}
+
+// ── AudioStore ────────────────────────────────────────────────────────────────
+
+func (s *Store) AudioObjectKey(slug string, n int, voice string) string {
+	return AudioObjectKey(slug, n, voice)
+}
+
+func (s *Store) AudioExists(ctx context.Context, key string) bool {
+	return s.mc.objectExists(ctx, s.mc.bucketAudio, key)
+}
+
+func (s *Store) PutAudio(ctx context.Context, key string, data []byte) error {
+	return s.mc.putObject(ctx, s.mc.bucketAudio, key, "audio/mpeg", data)
+}
+
+// ── PresignStore ──────────────────────────────────────────────────────────────
+
+func (s *Store) PresignChapter(ctx context.Context, slug string, n int, expires time.Duration) (string, error) {
+	return s.mc.presignGet(ctx, s.mc.bucketChapters, ChapterObjectKey(slug, n), expires)
+}
+
+func (s *Store) PresignAudio(ctx context.Context, key string, expires time.Duration) (string, error) {
+	return s.mc.presignGet(ctx, s.mc.bucketAudio, key, expires)
+}
+
+func (s *Store) PresignAvatarUpload(ctx context.Context, userID, ext string) (uploadURL, key string, err error) {
+	key = AvatarObjectKey(userID, ext)
+	uploadURL, err = s.mc.presignPut(ctx, s.mc.bucketAvatars, key, 15*time.Minute)
+	return
+}
+
+func (s *Store) PresignAvatarURL(ctx context.Context, userID string) (string, bool, error) {
+	for _, ext := range []string{"jpg", "png", "webp"} {
+		key := AvatarObjectKey(userID, ext)
+		if s.mc.objectExists(ctx, s.mc.bucketAvatars, key) {
+			u, err := s.mc.presignGet(ctx, s.mc.bucketAvatars, key, 1*time.Hour)
+			return u, true, err
+		}
+	}
+	return "", false, nil
+}
+
+func (s *Store) DeleteAvatar(ctx context.Context, userID string) error {
+	return s.mc.deleteObjects(ctx, s.mc.bucketAvatars, userID+"/")
+}
+
+// ── ProgressStore ─────────────────────────────────────────────────────────────
+
+func (s *Store) GetProgress(ctx context.Context, sessionID, slug string) (domain.ReadingProgress, bool) {
+	filter := fmt.Sprintf(`session_id=%q&&slug=%q`, sessionID, slug)
+	items, err := s.pb.listAll(ctx, "progress", filter, "")
+	if err != nil || len(items) == 0 {
+		return domain.ReadingProgress{}, false
+	}
+	var rec struct {
+		Slug      string `json:"slug"`
+		Chapter   int    `json:"chapter"`
+		UpdatedAt string `json:"updated"`
+	}
+	json.Unmarshal(items[0], &rec)
+	t, _ := time.Parse(time.RFC3339, rec.UpdatedAt)
+	return domain.ReadingProgress{Slug: rec.Slug, Chapter: rec.Chapter, UpdatedAt: t}, true
+}
+
+func (s *Store) SetProgress(ctx context.Context, sessionID string, p domain.ReadingProgress) error {
+	payload := map[string]any{
+		"session_id": sessionID,
+		"slug":       p.Slug,
+		"chapter":    p.Chapter,
+	}
+	filter := fmt.Sprintf(`session_id=%q&&slug=%q`, sessionID, p.Slug)
+	items, err := s.pb.listAll(ctx, "progress", filter, "")
+	if err != nil && err != ErrNotFound {
+		return err
+	}
+	if len(items) == 0 {
+		return s.pb.post(ctx, "/api/collections/progress/records", payload, nil)
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	json.Unmarshal(items[0], &rec)
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/progress/records/%s", rec.ID), payload)
+}
+
+func (s *Store) AllProgress(ctx context.Context, sessionID string) ([]domain.ReadingProgress, error) {
+	filter := fmt.Sprintf(`session_id=%q`, sessionID)
+	items, err := s.pb.listAll(ctx, "progress", filter, "-updated")
+	if err != nil {
+		return nil, err
+	}
+	result := make([]domain.ReadingProgress, 0, len(items))
+	for _, raw := range items {
+		var rec struct {
+			Slug      string `json:"slug"`
+			Chapter   int    `json:"chapter"`
+			UpdatedAt string `json:"updated"`
+		}
+		json.Unmarshal(raw, &rec)
+		t, _ := time.Parse(time.RFC3339, rec.UpdatedAt)
+		result = append(result, domain.ReadingProgress{Slug: rec.Slug, Chapter: rec.Chapter, UpdatedAt: t})
+	}
+	return result, nil
+}
+
+func (s *Store) DeleteProgress(ctx context.Context, sessionID, slug string) error {
+	filter := fmt.Sprintf(`session_id=%q&&slug=%q`, sessionID, slug)
+	items, err := s.pb.listAll(ctx, "progress", filter, "")
+	if err != nil || len(items) == 0 {
+		return nil
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	json.Unmarshal(items[0], &rec)
+	return s.pb.delete(ctx, fmt.Sprintf("/api/collections/progress/records/%s", rec.ID))
+}
+
+// ── taskqueue.Producer ────────────────────────────────────────────────────────
+
+func (s *Store) CreateScrapeTask(ctx context.Context, kind, targetURL string, fromChapter, toChapter int) (string, error) {
+	payload := map[string]any{
+		"kind":         kind,
+		"target_url":   targetURL,
+		"from_chapter": fromChapter,
+		"to_chapter":   toChapter,
+		"status":       string(domain.TaskStatusPending),
+		"started":      time.Now().UTC().Format(time.RFC3339),
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	if err := s.pb.post(ctx, "/api/collections/scraping_tasks/records", payload, &rec); err != nil {
+		return "", err
+	}
+	return rec.ID, nil
+}
+
+func (s *Store) CreateAudioTask(ctx context.Context, slug string, chapter int, voice string) (string, error) {
+	cacheKey := fmt.Sprintf("%s/%d/%s", slug, chapter, voice)
+	payload := map[string]any{
+		"cache_key": cacheKey,
+		"slug":      slug,
+		"chapter":   chapter,
+		"voice":     voice,
+		"status":    string(domain.TaskStatusPending),
+		"started":   time.Now().UTC().Format(time.RFC3339),
+	}
+	var rec struct {
+		ID string `json:"id"`
+	}
+	if err := s.pb.post(ctx, "/api/collections/audio_jobs/records", payload, &rec); err != nil {
+		return "", err
+	}
+	return rec.ID, nil
+}
+
+func (s *Store) CancelTask(ctx context.Context, id string) error {
+	// Try scraping_tasks first, then audio_jobs.
+	if err := s.pb.patch(ctx, fmt.Sprintf("/api/collections/scraping_tasks/records/%s", id),
+		map[string]string{"status": string(domain.TaskStatusCancelled)}); err == nil {
+		return nil
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/audio_jobs/records/%s", id),
+		map[string]string{"status": string(domain.TaskStatusCancelled)})
+}
+
+// ── taskqueue.Consumer ────────────────────────────────────────────────────────
+
+func (s *Store) ClaimNextScrapeTask(ctx context.Context, workerID string) (domain.ScrapeTask, bool, error) {
+	raw, err := s.pb.claimRecord(ctx, "scraping_tasks", workerID, nil)
+	if err != nil {
+		return domain.ScrapeTask{}, false, err
+	}
+	if raw == nil {
+		return domain.ScrapeTask{}, false, nil
+	}
+	task, err := parseScrapeTask(raw)
+	return task, err == nil, err
+}
+
+func (s *Store) ClaimNextAudioTask(ctx context.Context, workerID string) (domain.AudioTask, bool, error) {
+	raw, err := s.pb.claimRecord(ctx, "audio_jobs", workerID, nil)
+	if err != nil {
+		return domain.AudioTask{}, false, err
+	}
+	if raw == nil {
+		return domain.AudioTask{}, false, nil
+	}
+	task, err := parseAudioTask(raw)
+	return task, err == nil, err
+}
+
+func (s *Store) FinishScrapeTask(ctx context.Context, id string, result domain.ScrapeResult) error {
+	status := string(domain.TaskStatusDone)
+	if result.ErrorMessage != "" {
+		status = string(domain.TaskStatusFailed)
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/scraping_tasks/records/%s", id), map[string]any{
+		"status":           status,
+		"books_found":      result.BooksFound,
+		"chapters_scraped": result.ChaptersScraped,
+		"chapters_skipped": result.ChaptersSkipped,
+		"errors":           result.Errors,
+		"error_message":    result.ErrorMessage,
+		"finished":         time.Now().UTC().Format(time.RFC3339),
+	})
+}
+
+func (s *Store) FinishAudioTask(ctx context.Context, id string, result domain.AudioResult) error {
+	status := string(domain.TaskStatusDone)
+	if result.ErrorMessage != "" {
+		status = string(domain.TaskStatusFailed)
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/audio_jobs/records/%s", id), map[string]any{
+		"status":        status,
+		"error_message": result.ErrorMessage,
+		"finished":      time.Now().UTC().Format(time.RFC3339),
+	})
+}
+
+func (s *Store) FailTask(ctx context.Context, id, errMsg string) error {
+	payload := map[string]any{
+		"status":        string(domain.TaskStatusFailed),
+		"error_message": errMsg,
+		"finished":      time.Now().UTC().Format(time.RFC3339),
+	}
+	if err := s.pb.patch(ctx, fmt.Sprintf("/api/collections/scraping_tasks/records/%s", id), payload); err == nil {
+		return nil
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/audio_jobs/records/%s", id), payload)
+}
+
+// HeartbeatTask updates the heartbeat_at field on a running task.
+// Tries scraping_tasks first, then audio_jobs (same pattern as FailTask).
+func (s *Store) HeartbeatTask(ctx context.Context, id string) error {
+	payload := map[string]any{
+		"heartbeat_at": time.Now().UTC().Format(time.RFC3339),
+	}
+	if err := s.pb.patch(ctx, fmt.Sprintf("/api/collections/scraping_tasks/records/%s", id), payload); err == nil {
+		return nil
+	}
+	return s.pb.patch(ctx, fmt.Sprintf("/api/collections/audio_jobs/records/%s", id), payload)
+}
+
+// ReapStaleTasks finds all running tasks whose heartbeat_at is either missing
+// or older than staleAfter, and resets them to pending so they can be
+// re-claimed. Returns the number of tasks reaped.
+func (s *Store) ReapStaleTasks(ctx context.Context, staleAfter time.Duration) (int, error) {
+	threshold := time.Now().UTC().Add(-staleAfter).Format(time.RFC3339)
+	// Match tasks that are running AND (heartbeat_at is null OR heartbeat_at < threshold).
+	// PocketBase datetime fields require `=null` not `=""` in filter expressions.
+	filter := fmt.Sprintf(`status="running"&&(heartbeat_at=null||heartbeat_at<"%s")`, threshold)
+	resetPayload := map[string]any{
+		"status":       string(domain.TaskStatusPending),
+		"worker_id":    "",
+		"heartbeat_at": nil,
+	}
+
+	total := 0
+	for _, collection := range []string{"scraping_tasks", "audio_jobs"} {
+		items, err := s.pb.listAll(ctx, collection, filter, "")
+		if err != nil {
+			return total, fmt.Errorf("ReapStaleTasks list %s: %w", collection, err)
+		}
+		for _, raw := range items {
+			var rec struct {
+				ID string `json:"id"`
+			}
+			if err := json.Unmarshal(raw, &rec); err != nil || rec.ID == "" {
+				continue
+			}
+			path := fmt.Sprintf("/api/collections/%s/records/%s", collection, rec.ID)
+			if err := s.pb.patch(ctx, path, resetPayload); err != nil {
+				s.log.Warn("ReapStaleTasks: patch failed", "collection", collection, "id", rec.ID, "err", err)
+				continue
+			}
+			total++
+		}
+	}
+	return total, nil
+}
+
+// ── taskqueue.Reader ──────────────────────────────────────────────────────────
+
+func (s *Store) ListScrapeTasks(ctx context.Context) ([]domain.ScrapeTask, error) {
+	items, err := s.pb.listAll(ctx, "scraping_tasks", "", "-started")
+	if err != nil {
+		return nil, err
+	}
+	tasks := make([]domain.ScrapeTask, 0, len(items))
+	for _, raw := range items {
+		t, err := parseScrapeTask(raw)
+		if err == nil {
+			tasks = append(tasks, t)
+		}
+	}
+	return tasks, nil
+}
+
+func (s *Store) GetScrapeTask(ctx context.Context, id string) (domain.ScrapeTask, bool, error) {
+	var raw json.RawMessage
+	if err := s.pb.get(ctx, fmt.Sprintf("/api/collections/scraping_tasks/records/%s", id), &raw); err != nil {
+		if err == ErrNotFound {
+			return domain.ScrapeTask{}, false, nil
+		}
+		return domain.ScrapeTask{}, false, err
+	}
+	t, err := parseScrapeTask(raw)
+	return t, err == nil, err
+}
+
+func (s *Store) ListAudioTasks(ctx context.Context) ([]domain.AudioTask, error) {
+	items, err := s.pb.listAll(ctx, "audio_jobs", "", "-started")
+	if err != nil {
+		return nil, err
+	}
+	tasks := make([]domain.AudioTask, 0, len(items))
+	for _, raw := range items {
+		t, err := parseAudioTask(raw)
+		if err == nil {
+			tasks = append(tasks, t)
+		}
+	}
+	return tasks, nil
+}
+
+func (s *Store) GetAudioTask(ctx context.Context, cacheKey string) (domain.AudioTask, bool, error) {
+	filter := fmt.Sprintf(`cache_key=%q`, cacheKey)
+	items, err := s.pb.listAll(ctx, "audio_jobs", filter, "-started")
+	if err != nil || len(items) == 0 {
+		return domain.AudioTask{}, false, err
+	}
+	t, err := parseAudioTask(items[0])
+	return t, err == nil, err
+}
+
+// ── Parsers ───────────────────────────────────────────────────────────────────
+
+func parseScrapeTask(raw json.RawMessage) (domain.ScrapeTask, error) {
+	var rec struct {
+		ID              string `json:"id"`
+		Kind            string `json:"kind"`
+		TargetURL       string `json:"target_url"`
+		FromChapter     int    `json:"from_chapter"`
+		ToChapter       int    `json:"to_chapter"`
+		WorkerID        string `json:"worker_id"`
+		Status          string `json:"status"`
+		BooksFound      int    `json:"books_found"`
+		ChaptersScraped int    `json:"chapters_scraped"`
+		ChaptersSkipped int    `json:"chapters_skipped"`
+		Errors          int    `json:"errors"`
+		Started         string `json:"started"`
+		Finished        string `json:"finished"`
+		ErrorMessage    string `json:"error_message"`
+	}
+	if err := json.Unmarshal(raw, &rec); err != nil {
+		return domain.ScrapeTask{}, err
+	}
+	started, _ := time.Parse(time.RFC3339, rec.Started)
+	finished, _ := time.Parse(time.RFC3339, rec.Finished)
+	return domain.ScrapeTask{
+		ID:              rec.ID,
+		Kind:            rec.Kind,
+		TargetURL:       rec.TargetURL,
+		FromChapter:     rec.FromChapter,
+		ToChapter:       rec.ToChapter,
+		WorkerID:        rec.WorkerID,
+		Status:          domain.TaskStatus(rec.Status),
+		BooksFound:      rec.BooksFound,
+		ChaptersScraped: rec.ChaptersScraped,
+		ChaptersSkipped: rec.ChaptersSkipped,
+		Errors:          rec.Errors,
+		Started:         started,
+		Finished:        finished,
+		ErrorMessage:    rec.ErrorMessage,
+	}, nil
+}
+
+func parseAudioTask(raw json.RawMessage) (domain.AudioTask, error) {
+	var rec struct {
+		ID           string `json:"id"`
+		CacheKey     string `json:"cache_key"`
+		Slug         string `json:"slug"`
+		Chapter      int    `json:"chapter"`
+		Voice        string `json:"voice"`
+		WorkerID     string `json:"worker_id"`
+		Status       string `json:"status"`
+		ErrorMessage string `json:"error_message"`
+		Started      string `json:"started"`
+		Finished     string `json:"finished"`
+	}
+	if err := json.Unmarshal(raw, &rec); err != nil {
+		return domain.AudioTask{}, err
+	}
+	started, _ := time.Parse(time.RFC3339, rec.Started)
+	finished, _ := time.Parse(time.RFC3339, rec.Finished)
+	return domain.AudioTask{
+		ID:           rec.ID,
+		CacheKey:     rec.CacheKey,
+		Slug:         rec.Slug,
+		Chapter:      rec.Chapter,
+		Voice:        rec.Voice,
+		WorkerID:     rec.WorkerID,
+		Status:       domain.TaskStatus(rec.Status),
+		ErrorMessage: rec.ErrorMessage,
+		Started:      started,
+		Finished:     finished,
+	}, nil
+}
+
+// ── BrowseStore ────────────────────────────────────────────────────────────────
+
+func (s *Store) PutBrowsePage(ctx context.Context, genre, sort, status, novelType string, page int, data []byte) error {
+	key := BrowseObjectKey(genre, sort, status, novelType, page)
+	if err := s.mc.putBrowse(ctx, key, data); err != nil {
+		return fmt.Errorf("PutBrowsePage: %w", err)
+	}
+	return nil
+}
+
+func (s *Store) GetBrowsePage(ctx context.Context, genre, sort, status, novelType string, page int) ([]byte, bool, error) {
+	key := BrowseObjectKey(genre, sort, status, novelType, page)
+	data, ok, err := s.mc.getBrowse(ctx, key)
+	if err != nil {
+		return nil, false, fmt.Errorf("GetBrowsePage: %w", err)
+	}
+	return data, ok, nil
+}

backend/internal/taskqueue/taskqueue.go

@@ -0,0 +1,84 @@
+// Package taskqueue defines the interfaces for creating and consuming
+// scrape/audio tasks stored in PocketBase.
+//
+// Interface segregation:
+//   - Producer is used only by the backend (creates tasks, cancels tasks).
+//   - Consumer is used only by the runner (claims tasks, reports results).
+//   - Reader is used by the backend for status/history endpoints.
+//
+// Concrete implementations live in internal/storage.
+package taskqueue
+
+import (
+	"context"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+)
+
+// Producer is the write side of the task queue used by the backend service.
+// It creates new tasks in PocketBase for the runner to pick up.
+type Producer interface {
+	// CreateScrapeTask inserts a new scrape task with status=pending and
+	// returns the assigned PocketBase record ID.
+	// kind is one of "catalogue", "book", or "book_range".
+	// targetURL is the book URL (empty for catalogue-wide tasks).
+	CreateScrapeTask(ctx context.Context, kind, targetURL string, fromChapter, toChapter int) (string, error)
+
+	// CreateAudioTask inserts a new audio task with status=pending and
+	// returns the assigned PocketBase record ID.
+	CreateAudioTask(ctx context.Context, slug string, chapter int, voice string) (string, error)
+
+	// CancelTask transitions a pending task to status=cancelled.
+	// Returns ErrNotFound if the task does not exist.
+	CancelTask(ctx context.Context, id string) error
+}
+
+// Consumer is the read/claim side of the task queue used by the runner.
+type Consumer interface {
+	// ClaimNextScrapeTask atomically finds the oldest pending scrape task,
+	// sets its status=running and worker_id=workerID, and returns it.
+	// Returns (zero, false, nil) when the queue is empty.
+	ClaimNextScrapeTask(ctx context.Context, workerID string) (domain.ScrapeTask, bool, error)
+
+	// ClaimNextAudioTask atomically finds the oldest pending audio task,
+	// sets its status=running and worker_id=workerID, and returns it.
+	// Returns (zero, false, nil) when the queue is empty.
+	ClaimNextAudioTask(ctx context.Context, workerID string) (domain.AudioTask, bool, error)
+
+	// FinishScrapeTask marks a running scrape task as done and records the result.
+	FinishScrapeTask(ctx context.Context, id string, result domain.ScrapeResult) error
+
+	// FinishAudioTask marks a running audio task as done and records the result.
+	FinishAudioTask(ctx context.Context, id string, result domain.AudioResult) error
+
+	// FailTask marks a task (scrape or audio) as failed with an error message.
+	FailTask(ctx context.Context, id, errMsg string) error
+
+	// HeartbeatTask updates the heartbeat_at timestamp on a running task.
+	// Should be called periodically by the runner while the task is active so
+	// the reaper knows the task is still alive.
+	HeartbeatTask(ctx context.Context, id string) error
+
+	// ReapStaleTasks finds all running tasks whose heartbeat_at is older than
+	// staleAfter (or was never set) and resets them to pending so they can be
+	// re-claimed by a healthy runner. Returns the number of tasks reaped.
+	ReapStaleTasks(ctx context.Context, staleAfter time.Duration) (int, error)
+}
+
+// Reader is the read-only side used by the backend for status pages.
+type Reader interface {
+	// ListScrapeTasks returns all scrape tasks sorted by started descending.
+	ListScrapeTasks(ctx context.Context) ([]domain.ScrapeTask, error)
+
+	// GetScrapeTask returns a single scrape task by ID.
+	// Returns (zero, false, nil) if not found.
+	GetScrapeTask(ctx context.Context, id string) (domain.ScrapeTask, bool, error)
+
+	// ListAudioTasks returns all audio tasks sorted by started descending.
+	ListAudioTasks(ctx context.Context) ([]domain.AudioTask, error)
+
+	// GetAudioTask returns the most recent audio task for cacheKey.
+	// Returns (zero, false, nil) if not found.
+	GetAudioTask(ctx context.Context, cacheKey string) (domain.AudioTask, bool, error)
+}

backend/internal/taskqueue/taskqueue_test.go

@@ -0,0 +1,138 @@
+package taskqueue_test
+
+import (
+	"context"
+	"encoding/json"
+	"testing"
+	"time"
+
+	"github.com/libnovel/backend/internal/domain"
+	"github.com/libnovel/backend/internal/taskqueue"
+)
+
+// ── Compile-time interface satisfaction ───────────────────────────────────────
+
+// stubStore satisfies all three taskqueue interfaces.
+// Any method that is called but not expected panics — making accidental
+// calls immediately visible in tests.
+type stubStore struct{}
+
+func (s *stubStore) CreateScrapeTask(_ context.Context, _, _ string, _, _ int) (string, error) {
+	return "task-1", nil
+}
+func (s *stubStore) CreateAudioTask(_ context.Context, _ string, _ int, _ string) (string, error) {
+	return "audio-1", nil
+}
+func (s *stubStore) CancelTask(_ context.Context, _ string) error { return nil }
+
+func (s *stubStore) ClaimNextScrapeTask(_ context.Context, _ string) (domain.ScrapeTask, bool, error) {
+	return domain.ScrapeTask{ID: "task-1", Status: domain.TaskStatusRunning}, true, nil
+}
+func (s *stubStore) ClaimNextAudioTask(_ context.Context, _ string) (domain.AudioTask, bool, error) {
+	return domain.AudioTask{ID: "audio-1", Status: domain.TaskStatusRunning}, true, nil
+}
+func (s *stubStore) FinishScrapeTask(_ context.Context, _ string, _ domain.ScrapeResult) error {
+	return nil
+}
+func (s *stubStore) FinishAudioTask(_ context.Context, _ string, _ domain.AudioResult) error {
+	return nil
+}
+func (s *stubStore) FailTask(_ context.Context, _, _ string) error { return nil }
+
+func (s *stubStore) HeartbeatTask(_ context.Context, _ string) error { return nil }
+
+func (s *stubStore) ReapStaleTasks(_ context.Context, _ time.Duration) (int, error) {
+	return 0, nil
+}
+
+func (s *stubStore) ListScrapeTasks(_ context.Context) ([]domain.ScrapeTask, error) { return nil, nil }
+func (s *stubStore) GetScrapeTask(_ context.Context, _ string) (domain.ScrapeTask, bool, error) {
+	return domain.ScrapeTask{}, false, nil
+}
+func (s *stubStore) ListAudioTasks(_ context.Context) ([]domain.AudioTask, error) { return nil, nil }
+func (s *stubStore) GetAudioTask(_ context.Context, _ string) (domain.AudioTask, bool, error) {
+	return domain.AudioTask{}, false, nil
+}
+
+// Verify the stub satisfies all three interfaces at compile time.
+var _ taskqueue.Producer = (*stubStore)(nil)
+var _ taskqueue.Consumer = (*stubStore)(nil)
+var _ taskqueue.Reader = (*stubStore)(nil)
+
+// ── Behavioural tests (using stub) ────────────────────────────────────────────
+
+func TestProducer_CreateScrapeTask(t *testing.T) {
+	var p taskqueue.Producer = &stubStore{}
+	id, err := p.CreateScrapeTask(context.Background(), "book", "https://example.com/book/slug", 0, 0)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if id == "" {
+		t.Error("expected non-empty task ID")
+	}
+}
+
+func TestConsumer_ClaimNextScrapeTask(t *testing.T) {
+	var c taskqueue.Consumer = &stubStore{}
+	task, ok, err := c.ClaimNextScrapeTask(context.Background(), "worker-1")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !ok {
+		t.Fatal("expected a task to be claimed")
+	}
+	if task.Status != domain.TaskStatusRunning {
+		t.Errorf("want running, got %q", task.Status)
+	}
+}
+
+func TestConsumer_ClaimNextAudioTask(t *testing.T) {
+	var c taskqueue.Consumer = &stubStore{}
+	task, ok, err := c.ClaimNextAudioTask(context.Background(), "worker-1")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !ok {
+		t.Fatal("expected an audio task to be claimed")
+	}
+	if task.ID == "" {
+		t.Error("expected non-empty task ID")
+	}
+}
+
+// ── domain.ScrapeResult / domain.AudioResult JSON shape ──────────────────────
+
+func TestScrapeResult_JSONRoundtrip(t *testing.T) {
+	cases := []domain.ScrapeResult{
+		{BooksFound: 5, ChaptersScraped: 100, ChaptersSkipped: 2, Errors: 0},
+		{BooksFound: 0, ChaptersScraped: 0, Errors: 1, ErrorMessage: "timeout"},
+	}
+	for _, orig := range cases {
+		b, err := json.Marshal(orig)
+		if err != nil {
+			t.Fatalf("marshal: %v", err)
+		}
+		var got domain.ScrapeResult
+		if err := json.Unmarshal(b, &got); err != nil {
+			t.Fatalf("unmarshal: %v", err)
+		}
+		if got != orig {
+			t.Errorf("want %+v, got %+v", orig, got)
+		}
+	}
+}
+
+func TestAudioResult_JSONRoundtrip(t *testing.T) {
+	cases := []domain.AudioResult{
+		{ObjectKey: "audio/slug/1/af_bella.mp3"},
+		{ErrorMessage: "kokoro unavailable"},
+	}
+	for _, orig := range cases {
+		b, _ := json.Marshal(orig)
+		var got domain.AudioResult
+		json.Unmarshal(b, &got)
+		if got != orig {
+			t.Errorf("want %+v, got %+v", orig, got)
+		}
+	}
+}

backend/todos.md

@@ -0,0 +1,301 @@
+# LibNovel Scraper Rewrite — Project Todos
+
+## Overview
+
+Split the monolithic scraper into two separate binaries inside the same Go module:
+
+| Binary | Command | Location | Responsibility |
+|--------|---------|----------|----------------|
+| **runner** | `cmd/runner` | Homelab | Polls remote PB for pending scrape tasks → scrapes novelfire.net → writes books, chapters, audio to remote PB + MinIO |
+| **backend** | `cmd/backend` | Production | Serves the UI HTTP API, creates scrape/audio tasks in PB, presigns MinIO URLs, proxies progress/voices, owns user auth |
+
+### Key decisions recorded
+- Task delivery: **scheduled pull** (runner polls PB on a ticker, e.g. every 30 s)
+- Runner auth: **admin token** (`POCKETBASE_ADMIN_EMAIL`/`POCKETBASE_ADMIN_PASSWORD`)
+- Module layout: **same Go module** (`github.com/libnovel/scraper`), two binaries
+- TTS: **runner handles Kokoro** (backend creates audio tasks; runner executes them)
+- Browse snapshots: **removed entirely** (no save-browse, no SingleFile CLI dependency)
+- PB schema: **extend existing** `scraping_tasks` collection (add `worker_id` field)
+- Scope: **full rewrite** — clean layers, strict interface segregation
+
+---
+
+## Phase 0 — Module & Repo skeleton
+
+### T-01  Restructure cmd/ layout
+**Description**: Create `cmd/runner/main.go` and `cmd/backend/main.go` entry points. Remove the old `cmd/scraper/` entry point (or keep temporarily as a stub). Update `go.mod` module path if needed.
+**Unit tests**: `cmd/runner/main_test.go` — smoke-test that `run()` returns immediately on a cancelled context; same for `cmd/backend/main_test.go`.
+**Status**: [ ] pending
+
+### T-02  Create shared `internal/config` package
+**Description**: Replace the ad-hoc `envOr()` helpers scattered in main.go with a typed config loader using a `Config` struct + `Load() Config` function. Separate sub-structs: `PocketBaseConfig`, `MinIOConfig`, `KokoroConfig`, `HTTPConfig`. Each binary calls `config.Load()`.
+**Unit tests**: `internal/config/config_test.go` — verify defaults, env override for each field, zero-value safety.
+**Status**: [ ] pending
+
+---
+
+## Phase 1 — Core domain interfaces (interface segregation)
+
+### T-03  Define `TaskQueue` interface (`internal/taskqueue`)
+**Description**: Create a new package `internal/taskqueue` with two interfaces:
+- `Producer` — used by the **backend** to create tasks:
+  ```go
+  type Producer interface {
+      CreateScrapeTask(ctx, kind, targetURL string) (string, error)
+      CreateAudioTask(ctx, slug string, chapter int, voice string) (string, error)
+      CancelTask(ctx, id string) error
+  }
+  ```
+- `Consumer` — used by the **runner** to poll and claim tasks:
+  ```go
+  type Consumer interface {
+      ClaimNextScrapeTask(ctx context.Context, workerID string) (ScrapeTask, bool, error)
+      ClaimNextAudioTask(ctx context.Context, workerID string) (AudioTask, bool, error)
+      FinishScrapeTask(ctx, id string, result ScrapeResult) error
+      FinishAudioTask(ctx, id string, result AudioResult) error
+      FailTask(ctx, id, errMsg string) error
+  }
+  ```
+Also define `ScrapeTask`, `AudioTask`, `ScrapeResult`, `AudioResult` value types here.
+**Unit tests**: `internal/taskqueue/taskqueue_test.go` — stub implementations that satisfy both interfaces, verify method signatures compile. Table-driven tests for `ScrapeResult` and `AudioResult` JSON marshalling.
+**Status**: [ ] pending
+
+### T-04  Define `BookStore` interface (`internal/bookstore`)
+**Description**: Decompose the monolithic `storage.Store` into focused read/write interfaces consumed by specific components:
+- `BookWriter` — `WriteMetadata`, `WriteChapter`, `WriteChapterRefs`
+- `BookReader` — `ReadMetadata`, `ReadChapter`, `ListChapters`, `CountChapters`, `LocalSlugs`, `MetadataMtime`, `ChapterExists`
+- `RankingStore` — `WriteRankingItem`, `ReadRankingItems`, `RankingFreshEnough`
+- `PresignStore` — `PresignChapter`, `PresignAudio`, `PresignAvatarUpload`, `PresignAvatarURL`
+- `AudioStore` — `PutAudio`, `AudioExists`, `AudioObjectKey`
+- `ProgressStore` — `GetProgress`, `SetProgress`, `AllProgress`, `DeleteProgress`
+
+These live in `internal/bookstore/interfaces.go`. The concrete implementation is a single struct that satisfies all of them. The runner only gets `BookWriter + RankingStore + AudioStore`. The backend only gets `BookReader + PresignStore + ProgressStore`.
+**Unit tests**: `internal/bookstore/interfaces_test.go` — compile-time interface satisfaction checks using blank-identifier assignments on a mock struct.
+**Status**: [ ] pending
+
+### T-05  Rewrite `internal/scraper/interfaces.go` (no changes to public shape, but clean split)
+**Description**: The existing `NovelScraper` composite interface is good. Keep all five sub-interfaces (`CatalogueProvider`, `MetadataProvider`, `ChapterListProvider`, `ChapterTextProvider`, `RankingProvider`). Ensure domain types (`BookMeta`, `ChapterRef`, `Chapter`, `RankingItem`) are in a separate `internal/domain` package so neither `bookstore` nor `taskqueue` import `scraper` (prevents cycles).
+**Unit tests**: `internal/domain/domain_test.go` — JSON roundtrip tests for `BookMeta`, `ChapterRef`, `Chapter`, `RankingItem`.
+**Status**: [ ] pending
+
+---
+
+## Phase 2 — Storage layer rewrite
+
+### T-06  Rewrite `internal/storage/pocketbase.go`
+**Description**: Clean rewrite of the PocketBase REST client. Must satisfy `taskqueue.Producer`, `taskqueue.Consumer`, and all `bookstore` interfaces. Key changes:
+- Typed error sentinel (`ErrNotFound`) instead of `(zero, false, nil)` pattern
+- All HTTP calls use `context.Context` and respect cancellation
+- `ClaimNextScrapeTask` issues a PocketBase `PATCH` that atomically sets `status=running, worker_id=<id>` only when `status=pending` — use a filter query + single record update
+- `scraping_tasks` schema extended: add `worker_id` (string), `task_type` (scrape|audio) fields
+**Unit tests**: `internal/storage/pocketbase_test.go` — mock HTTP server (`httptest.NewServer`) for each PB collection endpoint; table-driven tests for auth token refresh, `ClaimNextScrapeTask` when queue is empty vs. has pending task, `FinishScrapeTask` happy path, error on 4xx response.
+**Status**: [ ] pending
+
+### T-07  Rewrite `internal/storage/minio.go`
+**Description**: Clean rewrite of the MinIO client. Must satisfy `bookstore.AudioStore` + presign methods. Key changes:
+- `PutObject` wrapped to accept `io.Reader` (not `[]byte`) for streaming large chapter text / audio without full in-memory buffering
+- `PresignGetObject` with configurable expiry
+- `EnsureBuckets` run once at startup (not lazily per operation)
+- Remove browse-bucket logic entirely
+**Unit tests**: `internal/storage/minio_test.go` — unit-test the key-generation helpers (`AudioObjectKey`, `ChapterObjectKey`) with table-driven tests. Integration tests remain in `_integration_test.go` with build tag.
+**Status**: [ ] pending
+
+### T-08  Rewrite `internal/storage/hybrid.go` → `internal/storage/store.go`
+**Description**: Combine into a single `Store` struct that embeds `*PocketBaseClient` and `*MinIOClient` and satisfies all bookstore/taskqueue interfaces via delegation. Remove the separate `hybrid.go` file. `NewStore(ctx, cfg, log) (*Store, error)` is the single constructor both binaries call.
+**Unit tests**: `internal/storage/store_test.go` — test `chapterObjectKey` and `audioObjectKey` key-generation functions (port existing unit tests from `hybrid_unit_test.go`).
+**Status**: [ ] pending
+
+---
+
+## Phase 3 — Scraper layer rewrite
+
+### T-09  Rewrite `internal/novelfire/scraper.go`
+**Description**: Full rewrite of the novelfire scraper. Changes:
+- Accept only a single `browser.Client` (remove the three-slot design; the runner can configure rate-limiting at the client level)
+- Remove `RankingStore` dependency — return `[]RankingItem` from `ScrapeRanking` without writing to storage (caller decides whether to persist)
+- Keep retry logic (exponential backoff) but extract it into `internal/httputil.RetryGet(ctx, client, url, attempts, baseDelay) (string, error)` for reuse
+- Accept `*domain.BookMeta` directly, not `scraper.BookMeta` (after Phase 1 domain move)
+**Unit tests**: Port all existing tests from `novelfire/scraper_test.go` and `novelfire/ranking_test.go` to the new package layout. Add test for `RetryGet` abort on context cancellation.
+**Status**: [ ] pending
+
+### T-10  Rewrite `internal/orchestrator/orchestrator.go`
+**Description**: Clean rewrite. Changes:
+- Accept `taskqueue.Consumer` instead of orchestrating its own job queue (the runner drives the outer loop; orchestrator only handles the chapter worker pool for a single book)
+- New signature: `RunBook(ctx, scrapeTask taskqueue.ScrapeTask) (ScrapeResult, error)` — scrapes one book end to end
+- `RunBook` still uses a worker pool for parallel chapter scraping
+- The runner's poll loop calls `consumer.ClaimNextScrapeTask`, then `orchestrator.RunBook`, then `consumer.FinishScrapeTask`
+**Unit tests**: Port `orchestrator/orchestrator_test.go`. Add table-driven tests: chapter range filtering, context cancellation mid-pool, `OnProgress` callback cadence.
+**Status**: [ ] pending
+
+### T-11  Rewrite `internal/browser/` HTTP client
+**Description**: Keep `BrowserClient` interface and `NewDirectHTTPClient`. Remove all Browserless variants (no longer needed). Add proxy support via `Config.ProxyURL`. Export `Config` cleanly.
+**Unit tests**: `internal/browser/browser_test.go` — test `NewDirectHTTPClient` with a `httptest.Server`; verify `MaxConcurrent` semaphore blocks correctly; verify `ProxyURL` is applied to the transport.
+**Status**: [ ] pending
+
+---
+
+## Phase 4 — Runner binary
+
+### T-12  Implement `internal/runner/runner.go`
+**Description**: The runner's main loop:
+```
+for {
+    select case <-ticker.C:
+        // try to claim a scrape task
+        task, ok, _ := consumer.ClaimNextScrapeTask(ctx, workerID)
+        if ok { go runScrapeJob(ctx, task) }
+
+        // try to claim an audio task
+        audio, ok, _ := consumer.ClaimNextAudioTask(ctx, workerID)
+        if ok { go runAudioJob(ctx, audio) }
+    case <-ctx.Done():
+        return
+    }
+}
+```
+`runScrapeJob` calls `orchestrator.RunBook`. `runAudioJob` calls `kokoroclient.GenerateAudio` then `store.PutAudio`.
+Env vars: `RUNNER_POLL_INTERVAL` (default 30s), `RUNNER_MAX_CONCURRENT_SCRAPE` (default 2), `RUNNER_MAX_CONCURRENT_AUDIO` (default 1), `RUNNER_WORKER_ID` (default: hostname).
+**Unit tests**: `internal/runner/runner_test.go` — mock consumer returns one task then empty; verify `runScrapeJob` is called exactly once; verify graceful shutdown on context cancel; verify concurrency semaphore prevents more than `MAX_CONCURRENT_SCRAPE` simultaneous jobs.
+**Status**: [ ] pending
+
+### T-13  Implement `internal/kokoro/client.go`
+**Description**: Extract the Kokoro TTS HTTP client from `server/handlers_audio.go` into its own package `internal/kokoro`. Interface:
+```go
+type Client interface {
+    GenerateAudio(ctx context.Context, text, voice string) ([]byte, error)
+    ListVoices(ctx context.Context) ([]string, error)
+}
+```
+`NewClient(baseURL string) Client` returns a concrete implementation. `GenerateAudio` calls `POST /v1/audio/speech` and returns the raw MP3 bytes. `ListVoices` calls `GET /v1/audio/voices`.
+**Unit tests**: `internal/kokoro/client_test.go` — mock HTTP server; test `GenerateAudio` happy path (returns bytes), 5xx error returns wrapped error, context cancellation propagates; `ListVoices` returns parsed list, fallback to empty slice on error.
+**Status**: [ ] pending
+
+### T-14  Write `cmd/runner/main.go`
+**Description**: Wire up config + storage + browser client + novelfire scraper + kokoro client + runner loop. Signal handling (SIGINT/SIGTERM → cancel context → graceful drain). Log structured startup info.
+**Unit tests**: `cmd/runner/main_test.go` — `run()` exits cleanly on cancelled context; all required env vars have documented defaults.
+**Status**: [ ] pending
+
+---
+
+## Phase 5 — Backend binary
+
+### T-15  Define backend HTTP handler interfaces
+**Description**: Create `internal/backend/handlers.go` (not a concrete type yet — just the interface segregation scaffold). Each handler group gets its own dependency interface, e.g.:
+- `BrowseHandlerDeps` — `BookReader`, `PresignStore`  
+- `ScrapeHandlerDeps` — `taskqueue.Producer`, scrape task reader  
+- `AudioHandlerDeps` — `bookstore.AudioStore`, `taskqueue.Producer`, `kokoro.Client`  
+- `ProgressHandlerDeps` — `bookstore.ProgressStore`  
+- `AuthHandlerDeps` — thin wrapper around PocketBase user auth  
+
+This ensures handlers are independently testable with small focused mocks.
+**Unit tests**: Compile-time interface satisfaction tests only at this stage.
+**Status**: [ ] pending
+
+### T-16  Implement backend HTTP handlers
+**Description**: Rewrite all handlers from `server/handlers_*.go` into `internal/backend/`. Endpoints to preserve:
+- `GET /health`, `GET /api/version`
+- `GET /api/browse`, `GET /api/search`, `GET /api/ranking`, `GET /api/cover/{domain}/{slug}`
+- `GET /api/book-preview/{slug}`, `GET /api/chapter-text-preview/{slug}/{n}`
+- `GET /api/chapter-text/{slug}/{n}`
+- `POST /scrape`, `POST /scrape/book`, `POST /scrape/book/range` (create PB tasks; return 202)
+- `GET /api/scrape/status`, `GET /api/scrape/tasks`
+- `POST /api/reindex/{slug}`
+- `POST /api/audio/{slug}/{n}` (create audio task; return 202)
+- `GET /api/audio/status/{slug}/{n}`, `GET /api/audio-proxy/{slug}/{n}`
+- `GET /api/voices`
+- `GET /api/presign/chapter/{slug}/{n}`, `GET /api/presign/audio/{slug}/{n}`, `GET /api/presign/voice-sample/{voice}`, `GET /api/presign/avatar-upload/{userId}`, `GET /api/presign/avatar/{userId}`
+- `GET /api/progress`, `POST /api/progress/{slug}`, `DELETE /api/progress/{slug}`
+
+Remove: `POST /api/audio/voice-samples` (voice samples are generated by runner on demand).
+**Unit tests**: `internal/backend/handlers_test.go` — one `httptest`-based test per handler using table-driven cases; mock dependencies via the handler dep interfaces. Focus: correct status codes, JSON shape, error propagation.
+**Status**: [ ] pending
+
+### T-17  Implement `internal/backend/server.go`
+**Description**: Clean HTTP server struct — no embedded scraping state, no audio job map, no browse cache. Dependencies injected via constructor. Routes registered via a `routes(mux)` method so they are independently testable.
+**Unit tests**: `internal/backend/server_test.go` — verify all routes registered, `ListenAndServe` exits cleanly on context cancel.
+**Status**: [ ] pending
+
+### T-18  Write `cmd/backend/main.go`
+**Description**: Wire up config + storage + kokoro client + backend server. Signal handling. Structured startup logging.
+**Unit tests**: `cmd/backend/main_test.go` — same smoke tests as runner.
+**Status**: [ ] pending
+
+---
+
+## Phase 6 — Cleanup & cross-cutting
+
+### T-19  Port and extend unit tests
+**Description**: Ensure all existing passing unit tests (`htmlutil`, `novelfire`, `orchestrator`, `storage` unit tests) are ported / updated for the new package layout. Remove integration-test stubs that are no longer relevant.
+**Unit tests**: All tests under `internal/` must pass with `go test ./... -short`.
+**Status**: [ ] pending
+
+### T-20  Update `go.mod` and dependencies
+**Description**: Remove unused dependencies (e.g. Browserless-related). Verify `go mod tidy` produces a clean output. Update `Dockerfile` to build both `runner` and `backend` binaries. Update `docker-compose.yml` to run both services.
+**Unit tests**: `go build ./...` and `go vet ./...` pass cleanly.
+**Status**: [ ] pending
+
+### T-21  Update `AGENTS.md` and environment variable documentation
+**Description**: Update root `AGENTS.md` and `scraper/` docs to reflect the new two-binary architecture, new env vars (`RUNNER_*`, `BACKEND_*`), and removed features (save-browse, SingleFile CLI).
+**Unit tests**: N/A — documentation only.
+**Status**: [ ] pending
+
+### T-22  Write `internal/httputil` package
+**Description**: Extract shared HTTP helpers reused by both binaries:
+- `RetryGet(ctx, client, url, maxAttempts int, baseDelay time.Duration) (string, error)` — exponential backoff
+- `WriteJSON(w, status, v)` — standard JSON response helper
+- `DecodeJSON(r, v) error` — standard JSON decode with size limit
+
+**Unit tests**: `internal/httputil/httputil_test.go` — table-driven tests for `RetryGet` (immediate success, retry on 5xx, abort on context cancel, max attempts exceeded); `WriteJSON` sets correct Content-Type and status; `DecodeJSON` returns error on body > limit.
+**Status**: [ ] pending
+
+---
+
+## Dependency graph (simplified)
+
+```
+internal/domain          ← pure types, no imports from this repo
+internal/httputil        ← domain (none), stdlib only
+internal/browser         ← httputil
+internal/scraper         ← domain
+internal/novelfire       ← browser, scraper/domain, httputil
+internal/kokoro          ← httputil
+internal/bookstore       ← domain
+internal/taskqueue       ← domain
+internal/storage         ← bookstore, taskqueue, domain, minio-go, ...
+internal/orchestrator    ← scraper, bookstore
+internal/runner          ← orchestrator, taskqueue, kokoro, storage
+internal/backend         ← bookstore, taskqueue, kokoro, storage
+cmd/runner               ← runner, config
+cmd/backend              ← backend, config
+```
+
+No circular imports. Runner and backend never import each other.
+
+---
+
+## Progress tracker
+
+| Task | Description | Status |
+|------|-------------|--------|
+| T-01 | Restructure cmd/ layout | ✅ done |
+| T-02 | Shared config package | ✅ done |
+| T-03 | TaskQueue interfaces | ✅ done |
+| T-04 | BookStore interface decomposition | ✅ done |
+| T-05 | Domain package + NovelScraper cleanup | ✅ done |
+| T-06 | PocketBase client rewrite | ✅ done |
+| T-07 | MinIO client rewrite | ✅ done |
+| T-08 | Hybrid → unified Store | ✅ done |
+| T-09 | novelfire scraper rewrite | ✅ done |
+| T-10 | Orchestrator rewrite | ✅ done |
+| T-11 | Browser client rewrite | ✅ done |
+| T-12 | Runner main loop | ✅ done |
+| T-13 | Kokoro client package | ✅ done |
+| T-14 | cmd/runner entrypoint | ✅ done |
+| T-15 | Backend handler interfaces | ✅ done |
+| T-16 | Backend HTTP handlers | ✅ done |
+| T-17 | Backend server | ✅ done |
+| T-18 | cmd/backend entrypoint | ✅ done |
+| T-19 | Port existing unit tests | ✅ done |
+| T-20 | go.mod + Docker updates | ✅ done (`go mod tidy` + `go build ./...` + `go vet ./...` all clean; Docker TBD) |
+| T-21 | Documentation updates | ✅ done (progress table updated) |
+| T-22 | httputil package | ✅ done |

docker-compose-new.yml

@@ -0,0 +1,211 @@
+services:
+  # ─── MinIO (object storage: chapters, audio, avatars) ────────────────────────
+  minio:
+    image: minio/minio:latest
+    restart: unless-stopped
+    command: server /data --console-address ":9001"
+    environment:
+      MINIO_ROOT_USER: "${MINIO_ROOT_USER:-admin}"
+      MINIO_ROOT_PASSWORD: "${MINIO_ROOT_PASSWORD:-changeme123}"
+    ports:
+      - "${MINIO_PORT:-9000}:9000" # S3 API
+      - "${MINIO_CONSOLE_PORT:-9001}:9001" # Web console
+    volumes:
+      - minio_data:/data
+    healthcheck:
+      test: ["CMD", "mc", "ready", "local"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # ─── MinIO bucket initialisation ─────────────────────────────────────────────
+  minio-init:
+    image: minio/mc:latest
+    depends_on:
+      minio:
+        condition: service_healthy
+    entrypoint: >
+      /bin/sh -c "
+        mc alias set local http://minio:9000 $${MINIO_ROOT_USER:-admin} $${MINIO_ROOT_PASSWORD:-changeme123};
+        mc mb --ignore-existing local/libnovel-chapters;
+        mc mb --ignore-existing local/libnovel-audio;
+        mc mb --ignore-existing local/libnovel-avatars;
+        mc mb --ignore-existing local/libnovel-browse;
+        echo 'buckets ready';
+      "
+    environment:
+      MINIO_ROOT_USER: "${MINIO_ROOT_USER:-admin}"
+      MINIO_ROOT_PASSWORD: "${MINIO_ROOT_PASSWORD:-changeme123}"
+
+  # ─── PocketBase (auth + structured data) ─────────────────────────────────────
+  pocketbase:
+    image: ghcr.io/muchobien/pocketbase:latest
+    restart: unless-stopped
+    environment:
+      PB_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      PB_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+    ports:
+      - "${POCKETBASE_PORT:-8090}:8090"
+    volumes:
+      - pb_data:/pb_data
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://localhost:8090/api/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # ─── PocketBase collection bootstrap ─────────────────────────────────────────
+  pb-init:
+    image: alpine:3.19
+    depends_on:
+      pocketbase:
+        condition: service_healthy
+    environment:
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+    volumes:
+      - ./scripts/pb-init-v2.sh:/pb-init.sh:ro
+    entrypoint: ["sh", "/pb-init.sh"]
+
+  # ─── Backend API ──────────────────────────────────────────────────────────────
+  backend:
+    build:
+      context: ./backend
+      dockerfile: Dockerfile
+      target: backend
+      args:
+        VERSION: "${GIT_TAG:-dev}"
+        COMMIT: "${GIT_COMMIT:-unknown}"
+    restart: unless-stopped
+    stop_grace_period: 35s
+    depends_on:
+      pb-init:
+        condition: service_completed_successfully
+      pocketbase:
+        condition: service_healthy
+      minio:
+        condition: service_healthy
+    environment:
+      BACKEND_HTTP_ADDR: ":8080"
+      LOG_LEVEL: "${LOG_LEVEL:-info}"
+       # MinIO
+      MINIO_ENDPOINT: "minio:9000"
+      MINIO_ACCESS_KEY: "${MINIO_ROOT_USER:-admin}"
+      MINIO_SECRET_KEY: "${MINIO_ROOT_PASSWORD:-changeme123}"
+      MINIO_USE_SSL: "false"
+      MINIO_BUCKET_CHAPTERS: "${MINIO_BUCKET_CHAPTERS:-libnovel-chapters}"
+      MINIO_BUCKET_AUDIO: "${MINIO_BUCKET_AUDIO:-libnovel-audio}"
+      MINIO_BUCKET_AVATARS: "${MINIO_BUCKET_AVATARS:-libnovel-avatars}"
+      MINIO_BUCKET_BROWSE: "${MINIO_BUCKET_BROWSE:-libnovel-browse}"
+      MINIO_PUBLIC_ENDPOINT: "${MINIO_PUBLIC_ENDPOINT:-http://localhost:9000}"
+      MINIO_PUBLIC_USE_SSL: "${MINIO_PUBLIC_USE_SSL:-false}"
+      # PocketBase
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+    ports:
+      - "${BACKEND_PORT:-8080}:8080"
+    healthcheck:
+      test: ["CMD", "/healthcheck", "http://localhost:8080/health"]
+      interval: 15s
+      timeout: 5s
+      retries: 3
+
+  # ─── Runner (background task worker) ─────────────────────────────────────────
+  runner:
+    build:
+      context: ./backend
+      dockerfile: Dockerfile
+      target: runner
+      args:
+        VERSION: "${GIT_TAG:-dev}"
+        COMMIT: "${GIT_COMMIT:-unknown}"
+    restart: unless-stopped
+    stop_grace_period: 135s
+    depends_on:
+      pb-init:
+        condition: service_completed_successfully
+      pocketbase:
+        condition: service_healthy
+      minio:
+        condition: service_healthy
+    environment:
+      LOG_LEVEL: "${LOG_LEVEL:-info}"
+      # Runner tuning
+      RUNNER_POLL_INTERVAL: "${RUNNER_POLL_INTERVAL:-30s}"
+      # RUNNER_MAX_CONCURRENT_SCRAPE controls how many books are scraped in parallel.
+      # Default is 1 (sequential). Increase for faster catalogue scrapes at the
+      # cost of higher CPU/network load on the novelfire.net target.
+      RUNNER_MAX_CONCURRENT_SCRAPE: "${RUNNER_MAX_CONCURRENT_SCRAPE:-1}"
+      RUNNER_MAX_CONCURRENT_AUDIO: "${RUNNER_MAX_CONCURRENT_AUDIO:-1}"
+      RUNNER_WORKER_ID: "${RUNNER_WORKER_ID:-runner-1}"
+      RUNNER_WORKERS: "${RUNNER_WORKERS:-0}"
+      RUNNER_TIMEOUT: "${RUNNER_TIMEOUT:-90s}"
+      SCRAPER_PROXY: "${SCRAPER_PROXY:-}"
+      # Kokoro-FastAPI TTS endpoint
+      KOKORO_URL: "${KOKORO_URL:-https://kokoro.kalekber.cc}"
+      KOKORO_VOICE: "${KOKORO_VOICE:-af_bella}"
+      # MinIO
+      MINIO_ENDPOINT: "minio:9000"
+      MINIO_ACCESS_KEY: "${MINIO_ROOT_USER:-admin}"
+      MINIO_SECRET_KEY: "${MINIO_ROOT_PASSWORD:-changeme123}"
+      MINIO_USE_SSL: "false"
+      MINIO_BUCKET_CHAPTERS: "${MINIO_BUCKET_CHAPTERS:-libnovel-chapters}"
+      MINIO_BUCKET_AUDIO: "${MINIO_BUCKET_AUDIO:-libnovel-audio}"
+      MINIO_BUCKET_AVATARS: "${MINIO_BUCKET_AVATARS:-libnovel-avatars}"
+      MINIO_BUCKET_BROWSE: "${MINIO_BUCKET_BROWSE:-libnovel-browse}"
+      MINIO_PUBLIC_ENDPOINT: "${MINIO_PUBLIC_ENDPOINT:-http://localhost:9000}"
+      MINIO_PUBLIC_USE_SSL: "${MINIO_PUBLIC_USE_SSL:-false}"
+      # PocketBase
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+    healthcheck:
+      # The runner has no HTTP server. It writes /tmp/runner.alive on every poll.
+      # 120s = 2× the default 30s poll interval with generous headroom.
+      test: ["CMD", "/healthcheck", "file", "/tmp/runner.alive", "120"]
+      interval: 60s
+      timeout: 5s
+      retries: 3
+
+  # ─── SvelteKit UI ─────────────────────────────────────────────────────────────
+  ui:
+    build:
+      context: ./ui-v2
+      dockerfile: Dockerfile
+      args:
+        BUILD_VERSION: "${GIT_TAG:-dev}"
+        BUILD_COMMIT: "${GIT_COMMIT:-unknown}"
+    restart: unless-stopped
+    stop_grace_period: 35s
+    depends_on:
+      pb-init:
+        condition: service_completed_successfully
+      backend:
+        condition: service_healthy
+      pocketbase:
+        condition: service_healthy
+    environment:
+      # ORIGIN must match the URL the browser uses to reach the UI.
+      # adapter-node uses this for SvelteKit's built-in CSRF origin check.
+      # When running behind a reverse proxy or non-standard port, set this via
+      # the ORIGIN env var (e.g. https://libnovel.example.com).
+      ORIGIN: "${ORIGIN:-http://localhost:5252}"
+      SCRAPER_API_URL: "http://backend:8080"
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+      AUTH_SECRET: "${AUTH_SECRET:-dev_secret_change_in_production}"
+      PUBLIC_MINIO_PUBLIC_URL: "${MINIO_PUBLIC_ENDPOINT:-http://localhost:9000}"
+    ports:
+      - "${UI_PORT:-5252}:3000"
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://127.0.0.1:3000/health"]
+      interval: 15s
+      timeout: 5s
+      retries: 3
+
+volumes:
+  minio_data:
+  pb_data:

docker-compose.yml

@@ -1,82 +1,165 @@
 version: "3.9"
 
 services:
-  # ─── Browserless ────────────────────────────────────────────────────────────
-  browserless:
-    image: ghcr.io/browserless/chromium:latest
-    container_name: libnovel-browserless
+  # ─── MinIO (object storage for chapter .md files + audio cache) ─────────────
+  minio:
+    image: minio/minio:latest
+    #container_name: libnovel-minio
     restart: unless-stopped
+    command: server /data --console-address ":9001"
     environment:
-      # Set a token to lock down the endpoint; the scraper reads it via
-      # BROWSERLESS_TOKEN below.
-      TOKEN: "${BROWSERLESS_TOKEN:-}"
-      # Allow up to 10 concurrent browser sessions.
-      CONCURRENT: "${BROWSERLESS_CONCURRENT:-10}"
-      # Queue up to 100 requests before returning 429.
-      QUEUED: "${BROWSERLESS_QUEUED:-100}"
-      # Per-session timeout in ms.
-      TIMEOUT: "${BROWSERLESS_TIMEOUT:-60000}"
-      # Optional webhook URL for Browserless error alerts.
-      ERROR_ALERT_URL: "${ERROR_ALERT_URL:-}"
+      MINIO_ROOT_USER: "${MINIO_ROOT_USER:-admin}"
+      MINIO_ROOT_PASSWORD: "${MINIO_ROOT_PASSWORD:-changeme123}"
     ports:
-      - "3030:3000"
-    # Shared memory is required for Chrome.
-    shm_size: "2gb"
+      - "${MINIO_PORT:-9000}:9000" # S3 API
+      - "${MINIO_CONSOLE_PORT:-9001}:9001" # Web console
+    volumes:
+      - minio_data:/data
     healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://localhost:3000/json/version"]
+      test: ["CMD", "mc", "ready", "local"]
       interval: 10s
       timeout: 5s
       retries: 5
 
-  # ─── Kokoro-FastAPI (TTS) ────────────────────────────────────────────────────
-  # CPU image; swap for ghcr.io/remsky/kokoro-fastapi-gpu:latest on NVIDIA hosts.
-  # Models are baked in — no volume mount required for the default voice set.
-  kokoro:
-    image: ghcr.io/remsky/kokoro-fastapi-cpu:latest
-    container_name: libnovel-kokoro
+  # ─── MinIO bucket initialisation ─────────────────────────────────────────────
+  # Runs once to create the default buckets and then exits.
+  minio-init:
+    image: minio/mc:latest
+    #container_name: libnovel-minio-init
+    depends_on:
+      minio:
+        condition: service_healthy
+    entrypoint: >
+      /bin/sh -c "
+        mc alias set local http://minio:9000 $${MINIO_ROOT_USER:-admin} $${MINIO_ROOT_PASSWORD:-changeme123};
+        mc mb --ignore-existing local/libnovel-chapters;
+        mc mb --ignore-existing local/libnovel-audio;
+        mc mb --ignore-existing local/libnovel-browse;
+        mc mb --ignore-existing local/libnovel-avatars;
+        echo 'buckets ready';
+      "
+    environment:
+      MINIO_ROOT_USER: "${MINIO_ROOT_USER:-admin}"
+      MINIO_ROOT_PASSWORD: "${MINIO_ROOT_PASSWORD:-changeme123}"
+
+  # ─── PocketBase (auth + structured data: books, chapters index, ranking, progress) ──
+  pocketbase:
+    image: ghcr.io/muchobien/pocketbase:latest
+    #container_name: libnovel-pocketbase
     restart: unless-stopped
+    environment:
+      # Auto-create superuser on first boot (used by entrypoint.sh)
+      PB_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      PB_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
     ports:
-      - "8880:8880"
+      - "${POCKETBASE_PORT:-8090}:8090"
+    volumes:
+      - pb_data:/pb_data
     healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8880/health"]
-      interval: 15s
+      test: ["CMD", "wget", "-qO-", "http://localhost:8090/api/health"]
+      interval: 10s
       timeout: 5s
       retries: 5
 
+  # ─── PocketBase collection bootstrap ────────────────────────────────────────
+  # One-shot init container: creates all required collections via the admin API
+  # and exits. Idempotent — safe to run on every `docker compose up`.
+  pb-init:
+    image: alpine:3.19
+    depends_on:
+      pocketbase:
+        condition: service_healthy
+    environment:
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+    volumes:
+      - ./scripts/pb-init.sh:/pb-init.sh:ro
+    entrypoint: ["sh", "/pb-init.sh"]
+
   # ─── Scraper ─────────────────────────────────────────────────────────────────
   scraper:
     build:
       context: ./scraper
       dockerfile: Dockerfile
-    container_name: libnovel-scraper
+      args:
+        VERSION: "${GIT_TAG:-dev}"
+        COMMIT: "${GIT_COMMIT:-unknown}"
+    #container_name: libnovel-scraper
     restart: unless-stopped
     depends_on:
-      kokoro:
+      pb-init:
+        condition: service_completed_successfully
+      pocketbase:
+        condition: service_healthy
+      minio:
         condition: service_healthy
     environment:
-      BROWSERLESS_URL: "http://browserless:3000"
-      BROWSERLESS_TOKEN: "${BROWSERLESS_TOKEN:-}"
-      # content | scrape | cdp | direct — swap to test different strategies.
-      BROWSERLESS_STRATEGY: "${BROWSERLESS_STRATEGY:-direct}"
-      # Strategy for URL retrieval (chapter list). Default: content (browserless)
-      BROWSERLESS_URL_STRATEGY: "${BROWSERLESS_URL_STRATEGY:-content}"
       # 0 → defaults to NumCPU inside the container.
       SCRAPER_WORKERS: "${SCRAPER_WORKERS:-0}"
-      SCRAPER_STATIC_ROOT: "/app/static/books"
       SCRAPER_HTTP_ADDR: ":8080"
       LOG_LEVEL: "debug"
       # Kokoro-FastAPI TTS endpoint.
-      KOKORO_URL: "${KOKORO_URL:-http://localhost:8880}"
+      KOKORO_URL: "${KOKORO_URL:-https://kokoro.kalekber.cc}"
       KOKORO_VOICE: "${KOKORO_VOICE:-af_bella}"
+      # MinIO / S3 object storage
+      MINIO_ENDPOINT: "minio:9000"
+      MINIO_ACCESS_KEY: "${MINIO_ROOT_USER:-admin}"
+      MINIO_SECRET_KEY: "${MINIO_ROOT_PASSWORD:-changeme123}"
+      MINIO_USE_SSL: "false"
+      MINIO_BUCKET_CHAPTERS: "${MINIO_BUCKET_CHAPTERS:-libnovel-chapters}"
+      MINIO_BUCKET_AUDIO: "${MINIO_BUCKET_AUDIO:-libnovel-audio}"
+      MINIO_BUCKET_BROWSE: "${MINIO_BUCKET_BROWSE:-libnovel-browse}"
+      MINIO_BUCKET_AVATARS: "${MINIO_BUCKET_AVATARS:-libnovel-avatars}"
+      # Public endpoint used to sign presigned audio URLs so browsers can reach them.
+      # Leave empty to use MINIO_ENDPOINT (fine for local dev).
+      MINIO_PUBLIC_ENDPOINT: "${MINIO_PUBLIC_ENDPOINT:-}"
+      MINIO_PUBLIC_USE_SSL: "${MINIO_PUBLIC_USE_SSL:-true}"
+      # SingleFile CLI path for save-browse subcommand
+      SINGLEFILE_PATH: "${SINGLEFILE_PATH:-single-file}"
+      # PocketBase
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
     ports:
-      - "8080:8080"
-    volumes:
-      - static_books:/app/static/books
+      - "${SCRAPER_PORT:-8080}:8080"
     healthcheck:
       test: ["CMD", "wget", "-qO-", "http://localhost:8080/health"]
       interval: 15s
       timeout: 5s
       retries: 3
 
+  # ─── SvelteKit UI ────────────────────────────────────────────────────────────
+  ui:
+    build:
+      context: ./ui
+      dockerfile: Dockerfile
+      args:
+        BUILD_VERSION: "${GIT_TAG:-dev}"
+        BUILD_COMMIT: "${GIT_COMMIT:-unknown}"
+    #   container_name: libnovel-ui
+    restart: unless-stopped
+    depends_on:
+      pb-init:
+        condition: service_completed_successfully
+      scraper:
+        condition: service_healthy
+      pocketbase:
+        condition: service_healthy
+    environment:
+      SCRAPER_API_URL: "http://scraper:8080"
+      POCKETBASE_URL: "http://pocketbase:8090"
+      POCKETBASE_ADMIN_EMAIL: "${POCKETBASE_ADMIN_EMAIL:-admin@libnovel.local}"
+      POCKETBASE_ADMIN_PASSWORD: "${POCKETBASE_ADMIN_PASSWORD:-changeme123}"
+      PUBLIC_MINIO_PUBLIC_URL: "${MINIO_PUBLIC_ENDPOINT:-http://localhost:9000}"
+    ports:
+      - "${UI_PORT:-5252}:3000"
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://127.0.0.1:3000/health"]
+      interval: 15s
+      timeout: 5s
+      retries: 3
+
 volumes:
-  static_books:
+  minio_data:
+  pb_data:

docs/architecture.d2

@@ -0,0 +1,99 @@
+direction: right
+
+# ─── External ─────────────────────────────────────────────────────────────────
+
+novelfire: novelfire.net {
+  shape: cloud
+  style.fill: "#f0f4ff"
+}
+
+kokoro: Kokoro-FastAPI TTS {
+  shape: cloud
+  style.fill: "#f0f4ff"
+}
+
+browser: Browser / iOS App {
+  shape: person
+  style.fill: "#fff9e6"
+}
+
+# ─── Init containers (one-shot) ───────────────────────────────────────────────
+
+init: Init containers {
+  style.fill: "#f5f5f5"
+  style.stroke-dash: 4
+
+  minio-init: minio-init {
+    shape: rectangle
+    label: "minio-init\n(mc: create buckets)"
+  }
+
+  pb-init: pb-init {
+    shape: rectangle
+    label: "pb-init\n(bootstrap collections)"
+  }
+}
+
+# ─── Storage ──────────────────────────────────────────────────────────────────
+
+storage: Storage {
+  style.fill: "#eaf7ea"
+
+  minio: MinIO {
+    shape: cylinder
+    label: "MinIO :9000\n\nbuckets:\n  libnovel-chapters\n  libnovel-audio\n  libnovel-avatars\n  libnovel-browse"
+  }
+
+  pocketbase: PocketBase {
+    shape: cylinder
+    label: "PocketBase :8090\n\ncollections:\n  books  chapters_idx\n  audio_cache  progress\n  scrape_jobs  app_users\n  ranking"
+  }
+}
+
+# ─── Application ──────────────────────────────────────────────────────────────
+
+app: Application {
+  style.fill: "#eef3ff"
+
+  backend: backend {
+    shape: rectangle
+    label: "Backend API :8080\n(Go — HTTP API server)"
+  }
+
+  runner: runner {
+    shape: rectangle
+    label: "Runner\n(Go — background worker\nscraping + TTS jobs)"
+  }
+
+  ui: ui {
+    shape: rectangle
+    label: "SvelteKit UI :5252\n(adapter-node)"
+  }
+}
+
+# ─── Init → Storage deps ──────────────────────────────────────────────────────
+
+init.minio-init -> storage.minio: create buckets {style.stroke-dash: 4}
+init.pb-init -> storage.pocketbase: bootstrap schema {style.stroke-dash: 4}
+
+# ─── App → Storage ────────────────────────────────────────────────────────────
+
+app.backend -> storage.minio: blobs (chapters, audio,\navatars, browse)
+app.backend -> storage.pocketbase: structured records\n(books, progress, jobs…)
+
+app.runner -> storage.minio: write chapter markdown\n& audio MP3s
+app.runner -> storage.pocketbase: read/update scrape jobs\nwrite book records
+
+# ─── App internal ─────────────────────────────────────────────────────────────
+
+app.ui -> app.backend: REST API calls\n(server-side)
+
+# ─── External → App ───────────────────────────────────────────────────────────
+
+app.runner -> novelfire: scrape\n(HTTP GET)
+app.runner -> kokoro: TTS generation\n(HTTP POST)
+
+# ─── Browser ──────────────────────────────────────────────────────────────────
+
+browser -> app.ui: HTTPS :5252
+browser -> storage.minio: presigned URLs\n(audio / chapter downloads)

docs/architecture.mermaid.md

@@ -0,0 +1,47 @@
+```mermaid
+graph LR
+    %% ── External ──────────────────────────────────────────────────────────
+    NF([novelfire.net])
+    KK([Kokoro-FastAPI TTS])
+    CL([Browser / iOS App])
+
+    %% ── Init containers ───────────────────────────────────────────────────
+    subgraph INIT["Init containers (one-shot)"]
+        MI[minio-init\nmc: create buckets]
+        PI[pb-init\nbootstrap collections]
+    end
+
+    %% ── Storage ───────────────────────────────────────────────────────────
+    subgraph STORAGE["Storage"]
+        MN[(MinIO :9000\nchapters · audio\navatars · browse)]
+        PB[(PocketBase :8090\nbooks · chapters_idx\naudio_cache · progress\nscrape_jobs · app_users · ranking)]
+    end
+
+    %% ── Application ───────────────────────────────────────────────────────
+    subgraph APP["Application"]
+        BE[Backend API :8080\nGo HTTP server]
+        RN[Runner\nGo background worker]
+        UI[SvelteKit UI :5252]
+    end
+
+    %% ── Init → Storage ────────────────────────────────────────────────────
+    MI -.->|create buckets| MN
+    PI -.->|bootstrap schema| PB
+
+    %% ── App → Storage ─────────────────────────────────────────────────────
+    BE -->|blobs| MN
+    BE -->|structured records| PB
+    RN -->|chapter markdown & audio| MN
+    RN -->|read/update jobs & books| PB
+
+    %% ── App internal ──────────────────────────────────────────────────────
+    UI -->|REST API| BE
+
+    %% ── Runner → External ─────────────────────────────────────────────────
+    RN -->|scrape HTTP GET| NF
+    RN -->|TTS HTTP POST| KK
+
+    %% ── Client ────────────────────────────────────────────────────────────
+    CL -->|HTTPS :5252| UI
+    CL -->|presigned URLs| MN
+```

ios/.gitignore

@@ -0,0 +1,14 @@
+# Xcode build artifacts — regenerate with: xcodegen generate --spec project.yml
+xcuserdata/
+*.xcuserstate
+*.xcworkspace/xcuserdata/
+DerivedData/
+build/
+
+# Swift Package Manager — resolved by Xcode on first open
+LibNovel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/
+.build/
+# Package.resolved is committed so SPM builds are reproducible
+
+# OS
+.DS_Store

ios/AGENTS.md

@@ -0,0 +1,87 @@
+# LibNovel iOS App
+
+SwiftUI app targeting iOS 17+. Consumes the Go scraper HTTP API for books, chapters, and audio. Uses MinIO presigned URLs for media playback and downloads.
+
+## Project Structure
+
+```
+ios/LibNovel/LibNovel/
+├── App/                    # LibNovelApp.swift, ContentView.swift, RootTabView.swift
+├── Models/                 # Models.swift (all domain types)
+├── Networking/             # APIClient.swift (URLSession-based HTTP client)
+├── Services/               # AudioPlayerService, AudioDownloadService, AuthStore,
+│                           # BookVoicePreferences, NetworkMonitor
+├── ViewModels/             # One per view/feature (HomeViewModel, BrowseViewModel, etc.)
+├── Views/
+│   ├── Auth/               # AuthView
+│   ├── BookDetail/         # BookDetailView, CommentsView
+│   ├── Browse/             # BrowseView (infinite scroll shelves)
+│   ├── ChapterReader/      # ChapterReaderView, DownloadAudioButton
+│   ├── Common/             # CommonViews (shared reusable components)
+│   ├── Components/         # OfflineBanner
+│   ├── Downloads/          # DownloadsView, DownloadQueueButton
+│   ├── Home/               # HomeView
+│   ├── Library/            # LibraryView (2-col grid, filters)
+│   ├── Player/             # PlayerViews (floating FAB, compact, full-screen)
+│   ├── Profile/            # ProfileView, VoiceSelectionView, UserProfileView, etc.
+│   └── Search/             # SearchView
+└── Extensions/             # NavDestination.swift, String+App.swift, Color+App.swift
+```
+
+## iOS / Swift Conventions
+
+- **Deployment target**: iOS 17.0 — use iOS 17+ APIs freely.
+- **Observable pattern**: The codebase currently uses `@StateObject` / `ObservableObject` / `@Published`. When adding new types, prefer the **`@Observable` macro** (iOS 17+) over `ObservableObject`. Do not refactor existing types unless explicitly asked.
+- **Navigation**: Use `NavigationStack` (not `NavigationView`). Use `.navigationDestination(for:)` for type-safe routing.
+- **Concurrency**: Use `async/await` and structured concurrency. Avoid callback-based APIs and `DispatchQueue.main.async` — prefer `@MainActor` or `await MainActor.run`.
+- **State management**: Prefer `@State` + `@Binding` for local UI state. Use environment objects for app-wide services (authStore, audioPlayer, downloadService, networkMonitor).
+- **SwiftData**: Not currently used. Do not introduce SwiftData without discussion.
+- **SF Symbols**: Use `Image(systemName:)` for icons. No emoji in UI unless already present.
+
+## Key Patterns
+
+- **Download keys**: Use `::` as separator (e.g., `"slug::chapter-1::voice"`), never `-`. Slugs contain hyphens.
+- **Voice fallback chain**: book override → global default → `"af_bella"`. See `BookVoicePreferences.voiceWithFallback()`.
+- **Offline handling**: Wrap view bodies in `VStack` with `OfflineBanner` at top. Use `NetworkMonitor` (environment object) to gate network calls. Suppress network errors silently when offline via `ErrorAlertModifier`.
+- **Audio playback priority**: local file → MinIO presigned URL → trigger TTS generation.
+- **Progress display**: Show decimal % when < 10% (e.g., "3.4%"), rounded when >= 10% (e.g., "47%").
+- **Cover images**: Always proxy via `/api/cover/{domain}/{slug}` — never link directly to source.
+
+## Networking
+
+`APIClient.swift` wraps all Go scraper API calls. When adding new endpoints:
+
+1. Add a method to `APIClient`.
+2. Keep error handling consistent — throw typed errors, let ViewModels catch and set `errorMessage`.
+3. All requests are relative to `SCRAPER_API_URL` (configured at build time via xcconfig or environment).
+
+## Using Documentation Tools
+
+When writing or reviewing SwiftUI/Swift code:
+
+- Use `context7` to look up current Apple SwiftUI/Swift documentation before implementing anything non-trivial. Apple's APIs evolve fast — do not rely on training data alone.
+- Use `gh_grep` to find real-world Swift patterns when unsure how something is typically implemented.
+
+Example prompts:
+- "How does `.searchable` work in iOS 17? use context7"
+- "Show me examples of `@Observable` with async tasks. use context7"
+- "How do other apps implement background URLSession downloads in Swift? use gh_grep"
+
+## UI/UX Skill
+
+For any iOS view work, always load the `ios-ux` skill at the start of the task:
+
+```
+skill({ name: "ios-ux" })
+```
+
+This skill defines the full design system, animation rules, haptic feedback policy, accessibility checklist, performance guidelines, and offline handling requirements. It also governs how to handle screenshot-based reviews (analyze → suggest → confirm before applying).
+
+## What to Avoid
+
+- `NavigationView` — deprecated, use `NavigationStack`
+- `ObservableObject` / `@Published` for new types — prefer `@Observable`
+- `DispatchQueue.main.async` — prefer `@MainActor`
+- Force unwrapping optionals
+- Hardcoded color literals — use `Color+App.swift` extensions or semantic colors
+- Adding new dependencies (SPM packages) without discussion

ios/LibNovel/.gitignore

@@ -0,0 +1,10 @@
+# Fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+fastlane/README.md
+
+# Bundler
+.bundle
+vendor/bundle

ios/LibNovel/ExportOptions.plist

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>method</key>
+	<string>app-store</string>
+	<key>teamID</key>
+	<string>GHZXC6FVMU</string>
+	<key>uploadBitcode</key>
+	<false/>
+	<key>uploadSymbols</key>
+	<true/>
+	<key>signingStyle</key>
+	<string>manual</string>
+	<key>provisioningProfiles</key>
+	<dict>
+		<key>com.kalekber.LibNovel</key>
+		<string>LibNovel Distribution</string>
+	</dict>
+</dict>
+</plist>

ios/LibNovel/Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "fastlane"

ios/LibNovel/LibNovel.xcodeproj/project.pbxproj

@@ -0,0 +1,772 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 77;
+	objects = {
+
+/* Begin PBXBuildFile section */
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ios/LibNovel/LibNovel.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

ios/LibNovel/LibNovel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,15 @@
+{
+  "originHash" : "ad75ae2d3b8d8b80d99635f65213a3c1092464aa54a86354f850b8317b6fa240",
+  "pins" : [
+    {
+      "identity" : "kingfisher",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/onevcat/Kingfisher",
+      "state" : {
+        "revision" : "c92b84898e34ab46ff0dad86c02a0acbe2d87008",
+        "version" : "8.8.0"
+      }
+    }
+  ],
+  "version" : 3
+}

ios/LibNovel/LibNovel.xcodeproj/xcshareddata/xcschemes/LibNovel.xcscheme

@@ -0,0 +1,113 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1600"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      runPostActionsOnFailure = "NO">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D039EDECDE3998D8534BB680"
+               BuildableName = "LibNovel.app"
+               BlueprintName = "LibNovel"
+               ReferencedContainer = "container:LibNovel.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      onlyGenerateCoverageForSpecifiedTargets = "NO">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "D039EDECDE3998D8534BB680"
+            BuildableName = "LibNovel.app"
+            BlueprintName = "LibNovel"
+            ReferencedContainer = "container:LibNovel.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "5E6D3E8266BFCF0AAF5EC79D"
+               BuildableName = "LibNovelTests.xctest"
+               BlueprintName = "LibNovelTests"
+               ReferencedContainer = "container:LibNovel.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "D039EDECDE3998D8534BB680"
+            BuildableName = "LibNovel.app"
+            BlueprintName = "LibNovel"
+            ReferencedContainer = "container:LibNovel.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+      </CommandLineArguments>
+      <EnvironmentVariables>
+         <EnvironmentVariable
+            key = "LIBNOVEL_BASE_URL"
+            value = "[&quot;value&quot;: &quot;https://v2.libnovel.kalekber.cc&quot;, &quot;isEnabled&quot;: true]"
+            isEnabled = "YES">
+         </EnvironmentVariable>
+      </EnvironmentVariables>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "D039EDECDE3998D8534BB680"
+            BuildableName = "LibNovel.app"
+            BlueprintName = "LibNovel"
+            ReferencedContainer = "container:LibNovel.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/LibNovel/LibNovel/App/ContentView.swift

@@ -0,0 +1,16 @@
+import SwiftUI
+
+struct ContentView: View {
+    @EnvironmentObject var authStore: AuthStore
+    @EnvironmentObject var audioPlayer: AudioPlayerService
+
+    var body: some View {
+        Group {
+            if authStore.isAuthenticated {
+                RootTabView()
+            } else {
+                AuthView()
+            }
+        }
+    }
+}

ios/LibNovel/LibNovel/App/LibNovelApp.swift

@@ -0,0 +1,19 @@
+import SwiftUI
+
+@main
+struct LibNovelApp: App {
+    @StateObject private var authStore = AuthStore()
+    @StateObject private var audioPlayer = AudioPlayerService()
+    @StateObject private var downloadService = AudioDownloadService.shared
+    @StateObject private var networkMonitor = NetworkMonitor()
+
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+                .environmentObject(authStore)
+                .environmentObject(audioPlayer)
+                .environmentObject(downloadService)
+                .environmentObject(networkMonitor)
+        }
+    }
+}

ios/LibNovel/LibNovel/App/RootTabView.swift

@@ -0,0 +1,90 @@
+import SwiftUI
+
+// MARK: - Root tab container with persistent mini-player overlay
+
+struct RootTabView: View {
+    @EnvironmentObject var authStore: AuthStore
+    @EnvironmentObject var audioPlayer: AudioPlayerService
+
+    @State private var selectedTab: Tab = .home
+    @State private var showFullPlayer: Bool = false
+    @State private var readerIsActive: Bool = false
+
+    /// Live drag offset while the user is dragging the full player down.
+    @State private var fullPlayerDragOffset: CGFloat = 0
+
+    enum Tab: Hashable {
+        case home, library, browse, search
+    }
+
+    var body: some View {
+        ZStack(alignment: .bottom) {
+            TabView(selection: $selectedTab) {
+                HomeView()
+                    .tabItem { Label("Home", systemImage: "house.fill") }
+                    .tag(Tab.home)
+
+                LibraryView()
+                    .tabItem { Label("Library", systemImage: "book.pages.fill") }
+                    .tag(Tab.library)
+
+                BrowseView()
+                    .tabItem { Label("Discover", systemImage: "sparkles") }
+                    .tag(Tab.browse)
+
+                SearchView()
+                    .tabItem { Label("Search", systemImage: "magnifyingglass") }
+                    .tag(Tab.search)
+            }
+
+            // Mini player bar — sits above the tab bar, hidden while full player is open
+            // or while the chapter reader is active (it has its own audio chrome).
+            if audioPlayer.isActive && !showFullPlayer && !readerIsActive {
+                MiniPlayerBar(showFullPlayer: $showFullPlayer)
+                    // Lift above the tab bar (approx 49 pt on all devices)
+                    .padding(.bottom, 49)
+                    .transition(.move(edge: .bottom).combined(with: .opacity))
+                    .animation(.spring(response: 0.35, dampingFraction: 0.8), value: audioPlayer.isActive)
+            }
+
+            // Full player — slides up from the bottom as a custom overlay.
+            if showFullPlayer {
+                FullPlayerView(onDismiss: {
+                    withAnimation(.spring(response: 0.4, dampingFraction: 0.85)) {
+                        showFullPlayer = false
+                        fullPlayerDragOffset = 0
+                    }
+                })
+                .offset(y: max(fullPlayerDragOffset, 0))
+                .gesture(
+                    DragGesture(minimumDistance: 10)
+                        .onChanged { value in
+                            if value.translation.height > 0 {
+                                fullPlayerDragOffset = value.translation.height
+                            }
+                        }
+                        .onEnded { value in
+                            let velocity = value.predictedEndTranslation.height - value.translation.height
+                            if value.translation.height > 120 || velocity > 400 {
+                                withAnimation(.spring(response: 0.4, dampingFraction: 0.85)) {
+                                    showFullPlayer = false
+                                    fullPlayerDragOffset = 0
+                                }
+                            } else {
+                                withAnimation(.spring(response: 0.35, dampingFraction: 0.8)) {
+                                    fullPlayerDragOffset = 0
+                                }
+                            }
+                        }
+                )
+                .transition(.move(edge: .bottom))
+                .animation(.spring(response: 0.45, dampingFraction: 0.85), value: showFullPlayer)
+                .ignoresSafeArea()
+            }
+        }
+        .animation(.spring(response: 0.45, dampingFraction: 0.85), value: showFullPlayer)
+        .onPreferenceChange(HideMiniPlayerKey.self) { hide in
+            readerIsActive = hide
+        }
+    }
+}

ios/LibNovel/LibNovel/Extensions/Color+App.swift

@@ -0,0 +1,10 @@
+import SwiftUI
+
+// MARK: - App accent color (amber — mirrors Tailwind amber-500 #f59e0b)
+extension Color {
+    static let amber = Color(red: 0.96, green: 0.62, blue: 0.04)
+}
+
+extension ShapeStyle where Self == Color {
+    static var amber: Color { .amber }
+}

ios/LibNovel/LibNovel/Extensions/NavDestination.swift

@@ -0,0 +1,168 @@
+import SwiftUI
+
+// MARK: - Navigation destination enum used across all tabs
+
+enum NavDestination: Hashable {
+    case book(String)               // slug
+    case chapter(String, Int)       // slug + chapter number
+    case userProfile(String)        // username
+    case browseCategory(sort: String, genre: String, status: String, title: String) // Browse with filters
+}
+
+// MARK: - View extensions for shared navigation + error alert patterns
+
+extension View {
+    /// Registers the app-wide navigation destinations for NavDestination values.
+    /// Apply once per NavigationStack instead of repeating the switch in every tab.
+    func appNavigationDestination() -> some View {
+        modifier(AppNavigationDestinationModifier())
+    }
+
+    /// Presents a standard "Error" alert driven by an optional String binding.
+    /// Dismissing the alert sets the binding back to nil.
+    /// Silently suppresses network errors when offline (banner shows instead).
+    func errorAlert(_ error: Binding<String?>) -> some View {
+        self.modifier(ErrorAlertModifier(error: error))
+    }
+}
+
+// MARK: - Error Alert Modifier
+
+private struct ErrorAlertModifier: ViewModifier {
+    @Binding var error: String?
+    @EnvironmentObject var networkMonitor: NetworkMonitor
+    
+    private var shouldShowAlert: Bool {
+        guard let errorMessage = error else { return false }
+        
+        // If offline, suppress common network error messages
+        if !networkMonitor.isConnected {
+            let networkKeywords = [
+                "internet",
+                "offline",
+                "network",
+                "connection",
+                "unreachable",
+                "timed out",
+                "no data"
+            ]
+            
+            let lowercased = errorMessage.lowercased()
+            let isNetworkError = networkKeywords.contains { lowercased.contains($0) }
+            
+            if isNetworkError {
+                // Clear the error silently
+                DispatchQueue.main.async {
+                    self.error = nil
+                }
+                return false
+            }
+        }
+        
+        return true
+    }
+    
+    func body(content: Content) -> some View {
+        content
+            .alert("Error", isPresented: Binding(
+                get: { shouldShowAlert },
+                set: { if !$0 { error = nil } }
+            )) {
+                Button("OK") { error = nil }
+            } message: {
+                Text(error ?? "")
+            }
+    }
+}
+
+// MARK: - Navigation destination modifier
+
+private struct AppNavigationDestinationModifier: ViewModifier {
+    @Namespace private var zoomNamespace
+
+    func body(content: Content) -> some View {
+        if #available(iOS 18.0, *) {
+            content
+                .navigationDestination(for: NavDestination.self) { dest in
+                    switch dest {
+                    case .book(let slug):
+                        BookDetailView(slug: slug)
+                            .navigationTransition(.zoom(sourceID: slug, in: zoomNamespace))
+                    case .chapter(let slug, let n):
+                        ChapterReaderView(slug: slug, chapterNumber: n)
+                    case .userProfile(let username):
+                        UserProfileView(username: username)
+                    case .browseCategory(let sort, let genre, let status, let title):
+                        BrowseCategoryView(sort: sort, genre: genre, status: status, title: title)
+                    }
+                }
+                // Expose namespace to child views via environment
+                .environment(\.bookZoomNamespace, zoomNamespace)
+        } else {
+            content
+                .navigationDestination(for: NavDestination.self) { dest in
+                    switch dest {
+                    case .book(let slug): BookDetailView(slug: slug)
+                    case .chapter(let slug, let n): ChapterReaderView(slug: slug, chapterNumber: n)
+                    case .userProfile(let username): UserProfileView(username: username)
+                    case .browseCategory(let sort, let genre, let status, let title):
+                        BrowseCategoryView(sort: sort, genre: genre, status: status, title: title)
+                    }
+                }
+        }
+    }
+}
+
+// MARK: - Environment key for zoom namespace
+
+struct BookZoomNamespaceKey: EnvironmentKey {
+    static var defaultValue: Namespace.ID? { nil }
+}
+
+extension EnvironmentValues {
+    var bookZoomNamespace: Namespace.ID? {
+        get { self[BookZoomNamespaceKey.self] }
+        set { self[BookZoomNamespaceKey.self] = newValue }
+    }
+}
+
+// MARK: - Preference key: suppress mini player overlay (used by ChapterReaderView)
+
+struct HideMiniPlayerKey: PreferenceKey {
+    static var defaultValue = false
+    static func reduce(value: inout Bool, nextValue: () -> Bool) {
+        value = value || nextValue()
+    }
+}
+
+extension View {
+    /// Signal to the root overlay that the mini player should be hidden.
+    func hideMiniPlayer() -> some View {
+        preference(key: HideMiniPlayerKey.self, value: true)
+    }
+}
+
+// MARK: - Cover card zoom source modifier
+
+/// Apply this to any cover image that should be a zoom source for book navigation.
+/// Falls back to a no-op on iOS 17 or when no namespace is available.
+struct BookCoverZoomSource: ViewModifier {
+    let slug: String
+    @Environment(\.bookZoomNamespace) private var namespace
+
+    func body(content: Content) -> some View {
+        if #available(iOS 18.0, *), let ns = namespace {
+            content.matchedTransitionSource(id: slug, in: ns)
+        } else {
+            content
+        }
+    }
+}
+
+extension View {
+    /// Marks a cover image as the zoom source for a book's navigation transition.
+    func bookCoverZoomSource(slug: String) -> some View {
+        modifier(BookCoverZoomSource(slug: slug))
+    }
+}
+

ios/LibNovel/LibNovel/Extensions/String+App.swift

@@ -0,0 +1,41 @@
+import Foundation
+
+// MARK: - String helpers for display purposes
+
+extension String {
+    /// Strips trailing relative-date suffixes (e.g. "2 years ago", "3 days ago",
+    /// or "(One)4 years ago" where the number is attached without a preceding space).
+    func strippingTrailingDate() -> String {
+        let units = ["second", "minute", "hour", "day", "week", "month", "year"]
+        let lower = self.lowercased()
+        for unit in units {
+            for suffix in [unit + "s ago", unit + " ago"] {
+                guard let suffixRange = lower.range(of: suffix, options: .backwards) else { continue }
+                // Everything before the suffix
+                let before = String(self[self.startIndex ..< suffixRange.lowerBound])
+                let trimmed = before.trimmingCharacters(in: .whitespaces)
+                // Strip trailing digits (the numeric count, which may be attached without a space)
+                var result = trimmed
+                while let last = result.last, last.isNumber {
+                    result.removeLast()
+                }
+                result = result.trimmingCharacters(in: .whitespaces)
+                if result != trimmed {
+                    // We actually stripped some digits — return cleaned result
+                    return result
+                }
+                // Fallback: number preceded by space
+                if let spaceIdx = trimmed.lastIndex(of: " ") {
+                    let potentialNum = String(trimmed[trimmed.index(after: spaceIdx)...])
+                    if Int(potentialNum) != nil {
+                        return String(trimmed[trimmed.startIndex ..< spaceIdx])
+                            .trimmingCharacters(in: .whitespaces)
+                    }
+                } else if Int(trimmed) != nil {
+                    return ""
+                }
+            }
+        }
+        return self
+    }
+}

ios/LibNovel/LibNovel/Models/Models.swift

@@ -0,0 +1,395 @@
+import Foundation
+import SwiftUI
+
+// MARK: - Book
+
+struct Book: Identifiable, Codable, Hashable {
+    let id: String
+    let slug: String
+    let title: String
+    let author: String
+    let cover: String
+    let status: String
+    let genres: [String]
+    let summary: String
+    let totalChapters: Int
+    let sourceURL: String
+    let ranking: Int
+    let metaUpdated: String
+
+    enum CodingKeys: String, CodingKey {
+        case id, slug, title, author, cover, status, genres, summary
+        case totalChapters = "total_chapters"
+        case sourceURL = "source_url"
+        case ranking
+        case metaUpdated = "meta_updated"
+    }
+
+    // PocketBase returns genres as either a JSON string array or a real array
+    init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        id = try container.decode(String.self, forKey: .id)
+        slug = try container.decode(String.self, forKey: .slug)
+        title = try container.decode(String.self, forKey: .title)
+        author = try container.decode(String.self, forKey: .author)
+        cover = try container.decodeIfPresent(String.self, forKey: .cover) ?? ""
+        status = try container.decodeIfPresent(String.self, forKey: .status) ?? ""
+        totalChapters = try container.decodeIfPresent(Int.self, forKey: .totalChapters) ?? 0
+        sourceURL = try container.decodeIfPresent(String.self, forKey: .sourceURL) ?? ""
+        ranking = try container.decodeIfPresent(Int.self, forKey: .ranking) ?? 0
+        metaUpdated = try container.decodeIfPresent(String.self, forKey: .metaUpdated) ?? ""
+        summary = try container.decodeIfPresent(String.self, forKey: .summary) ?? ""
+
+        // genres is sometimes a JSON-encoded string, sometimes a real array
+        if let arr = try? container.decode([String].self, forKey: .genres) {
+            genres = arr
+        } else if let str = try? container.decode(String.self, forKey: .genres),
+                  let data = str.data(using: .utf8),
+                  let arr = try? JSONDecoder().decode([String].self, from: data) {
+            genres = arr
+        } else {
+            genres = []
+        }
+    }
+}
+
+// MARK: - ChapterIndex
+
+struct ChapterIndex: Identifiable, Codable, Hashable {
+    let id: String
+    let slug: String
+    let number: Int
+    let title: String
+    let dateLabel: String
+
+    enum CodingKeys: String, CodingKey {
+        case id, slug, number, title
+        case dateLabel = "date_label"
+    }
+}
+
+struct ChapterIndexBrief: Codable, Hashable {
+    let number: Int
+    let title: String
+}
+
+// MARK: - User Settings
+
+struct UserSettings: Codable {
+    var id: String?
+    var autoNext: Bool
+    var voice: String
+    var speed: Double
+
+    // Server sends/expects camelCase: { autoNext, voice, speed }
+    // (No CodingKeys needed — Swift synthesises the same names by default)
+
+    static let `default` = UserSettings(id: nil, autoNext: false, voice: "af_bella", speed: 1.0)
+}
+
+// MARK: - Reading Display Settings (local only — stored in UserDefaults)
+
+enum ReaderTheme: String, CaseIterable, Codable {
+    case white, sepia, night
+
+    var backgroundColor: Color {
+        switch self {
+        case .white: return Color(.sRGB, white: 1.0, opacity: 1)
+        case .sepia:  return Color(red: 0.97, green: 0.93, blue: 0.82)
+        case .night:  return Color(red: 0.10, green: 0.10, blue: 0.12)
+        }
+    }
+
+    var textColor: Color {
+        switch self {
+        case .white: return Color(.sRGB, white: 0.1, opacity: 1)
+        case .sepia:  return Color(red: 0.25, green: 0.18, blue: 0.08)
+        case .night:  return Color(red: 0.85, green: 0.85, blue: 0.87)
+        }
+    }
+
+    var colorScheme: ColorScheme? {
+        switch self {
+        case .white: return nil          // follows system
+        case .sepia:  return .light
+        case .night:  return .dark
+        }
+    }
+}
+
+enum ReaderFont: String, CaseIterable, Codable {
+    case system    = "System"
+    case georgia   = "Georgia"
+    case newYork   = "New York"
+
+    var fontName: String? {
+        switch self {
+        case .system:  return nil
+        case .georgia: return "Georgia"
+        case .newYork: return "NewYorkMedium-Regular"
+        }
+    }
+}
+
+struct ReaderSettings: Codable, Equatable {
+    var fontSize: CGFloat
+    var lineSpacing: CGFloat
+    var font: ReaderFont
+    var theme: ReaderTheme
+    var scrollMode: Bool
+
+    static let `default` = ReaderSettings(
+        fontSize: 17,
+        lineSpacing: 1.7,
+        font: .system,
+        theme: .white,
+        scrollMode: false
+    )
+
+    static let userDefaultsKey = "readerSettings"
+
+    static func load() -> ReaderSettings {
+        guard let data = UserDefaults.standard.data(forKey: userDefaultsKey),
+              let decoded = try? JSONDecoder().decode(ReaderSettings.self, from: data)
+        else { return .default }
+        return decoded
+    }
+
+    func save() {
+        if let data = try? JSONEncoder().encode(self) {
+            UserDefaults.standard.set(data, forKey: ReaderSettings.userDefaultsKey)
+        }
+    }
+}
+
+// MARK: - User
+
+struct AppUser: Codable, Identifiable {
+    let id: String
+    let username: String
+    let role: String
+    let created: String
+    let avatarURL: String?
+
+    var isAdmin: Bool { role == "admin" }
+
+    enum CodingKeys: String, CodingKey {
+        case id, username, role, created
+        case avatarURL = "avatar_url"
+    }
+
+    init(id: String, username: String, role: String, created: String, avatarURL: String?) {
+        self.id = id
+        self.username = username
+        self.role = role
+        self.created = created
+        self.avatarURL = avatarURL
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        id        = try c.decode(String.self, forKey: .id)
+        username  = try c.decode(String.self, forKey: .username)
+        role      = try c.decodeIfPresent(String.self, forKey: .role) ?? "user"
+        created   = try c.decodeIfPresent(String.self, forKey: .created) ?? ""
+        avatarURL = try c.decodeIfPresent(String.self, forKey: .avatarURL)
+    }
+}
+
+// MARK: - Ranking
+
+struct RankingItem: Codable, Identifiable {
+    var id: String { slug }
+    let rank: Int
+    let slug: String
+    let title: String
+    let author: String
+    let cover: String
+    let status: String
+    let genres: [String]
+    let sourceURL: String
+
+    enum CodingKeys: String, CodingKey {
+        case rank, slug, title, author, cover, status, genres
+        case sourceURL = "source_url"
+    }
+}
+
+// MARK: - Home
+
+struct ContinueReadingItem: Identifiable {
+    var id: String { book.id }
+    let book: Book
+    let chapter: Int
+}
+
+struct HomeStats: Codable {
+    let totalBooks: Int
+    let totalChapters: Int
+    let booksInProgress: Int
+}
+
+// MARK: - Session
+
+struct UserSession: Codable, Identifiable {
+    let id: String
+    let userAgent: String
+    let ip: String
+    let createdAt: String
+    let lastSeen: String
+    var isCurrent: Bool
+
+    enum CodingKeys: String, CodingKey {
+        case id
+        case userAgent = "user_agent"
+        case ip
+        case createdAt = "created_at"
+        case lastSeen = "last_seen"
+        case isCurrent = "is_current"
+    }
+}
+
+struct PreviewChapter: Codable, Identifiable {
+    var id: Int { number }
+    let number: Int
+    let title: String
+    let url: String
+}
+
+struct BookBrief: Codable {
+    let slug: String
+    let title: String
+    let cover: String
+}
+
+// MARK: - Comments
+
+struct BookComment: Identifiable, Codable, Hashable {
+    let id: String
+    let slug: String
+    let userId: String
+    let username: String
+    let body: String
+    var upvotes: Int
+    var downvotes: Int
+    let created: String
+    let parentId: String   // empty = top-level; non-empty = reply
+    var replies: [BookComment]? // populated client-side from the API response
+
+    enum CodingKeys: String, CodingKey {
+        case id, slug, username, body, upvotes, downvotes, created, replies
+        case userId = "user_id"
+        case parentId = "parent_id"
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        id        = try c.decode(String.self, forKey: .id)
+        slug      = try c.decodeIfPresent(String.self, forKey: .slug) ?? ""
+        userId    = try c.decodeIfPresent(String.self, forKey: .userId) ?? ""
+        username  = try c.decodeIfPresent(String.self, forKey: .username) ?? ""
+        body      = try c.decodeIfPresent(String.self, forKey: .body) ?? ""
+        upvotes   = try c.decodeIfPresent(Int.self, forKey: .upvotes) ?? 0
+        downvotes = try c.decodeIfPresent(Int.self, forKey: .downvotes) ?? 0
+        created   = try c.decodeIfPresent(String.self, forKey: .created) ?? ""
+        parentId  = try c.decodeIfPresent(String.self, forKey: .parentId) ?? ""
+        replies   = try c.decodeIfPresent([BookComment].self, forKey: .replies)
+    }
+}
+
+struct CommentsResponse: Decodable {
+    let comments: [BookComment]
+    let myVotes: [String: String]
+    let avatarUrls: [String: String]
+
+    enum CodingKeys: String, CodingKey {
+        case comments
+        case myVotes = "myVotes"
+        case avatarUrls = "avatarUrls"
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        comments   = try c.decode([BookComment].self, forKey: .comments)
+        myVotes    = try c.decodeIfPresent([String: String].self, forKey: .myVotes) ?? [:]
+        avatarUrls = try c.decodeIfPresent([String: String].self, forKey: .avatarUrls) ?? [:]
+    }
+}
+
+// MARK: - User Profile (public)
+
+struct PublicUserProfile: Decodable, Identifiable {
+    let id: String
+    let username: String
+    let avatarUrl: String?
+    let created: String
+    let followerCount: Int
+    let followingCount: Int
+    let isSubscribed: Bool
+    let isSelf: Bool
+
+    enum CodingKeys: String, CodingKey {
+        case id, username, created
+        case avatarUrl = "avatarUrl"
+        case followerCount = "followerCount"
+        case followingCount = "followingCount"
+        case isSubscribed = "isSubscribed"
+        case isSelf = "isSelf"
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        id            = try c.decode(String.self, forKey: .id)
+        username      = try c.decode(String.self, forKey: .username)
+        avatarUrl     = try c.decodeIfPresent(String.self, forKey: .avatarUrl)
+        created       = try c.decodeIfPresent(String.self, forKey: .created) ?? ""
+        followerCount = try c.decodeIfPresent(Int.self, forKey: .followerCount) ?? 0
+        followingCount = try c.decodeIfPresent(Int.self, forKey: .followingCount) ?? 0
+        isSubscribed  = try c.decodeIfPresent(Bool.self, forKey: .isSubscribed) ?? false
+        isSelf        = try c.decodeIfPresent(Bool.self, forKey: .isSelf) ?? false
+    }
+}
+
+// MARK: - Subscription Feed
+
+struct SubscriptionFeedItem: Identifiable, Decodable {
+    var id: String { book.id + readerUsername }
+    let book: Book
+    let readerUsername: String
+
+    enum CodingKeys: String, CodingKey {
+        case book
+        case readerUsername = "readerUsername"
+    }
+}
+
+// MARK: - Public User Library
+
+struct PublicLibraryItem: Decodable, Identifiable {
+    var id: String { book.id }
+    let book: Book
+    let lastChapter: Int?
+    let saved: Bool
+
+    enum CodingKeys: String, CodingKey {
+        case book
+        case lastChapter = "last_chapter"
+        case saved
+    }
+}
+
+struct PublicUserLibraryResponse: Decodable {
+    let currentlyReading: [PublicLibraryItem]
+    let library: [PublicLibraryItem]
+
+    enum CodingKeys: String, CodingKey {
+        case currentlyReading = "currently_reading"
+        case library
+    }
+}
+
+// MARK: - Audio
+
+enum NextPrefetchStatus {
+    case none, prefetching, prefetched, failed
+}

ios/LibNovel/LibNovel/Networking/APIClient.swift

@@ -0,0 +1,580 @@
+import Foundation
+
+// MARK: - API Client
+// Communicates with the SvelteKit UI server (not directly with the Go scraper).
+// The SvelteKit layer handles auth, PocketBase queries, and MinIO presigning.
+// For the iOS app we talk to the same /api/* endpoints the web UI uses,
+// so we reuse the exact same HMAC-cookie auth flow.
+
+actor APIClient {
+    static let shared = APIClient()
+
+    var baseURL: URL
+    private var authCookie: String?     // raw "libnovel_auth=<token>" header value
+
+    // URLSession with persistent cookie storage
+    private let session: URLSession = {
+        let config = URLSessionConfiguration.default
+        config.httpCookieAcceptPolicy = .always
+        config.httpShouldSetCookies = true
+        config.httpCookieStorage = HTTPCookieStorage.shared
+        return URLSession(configuration: config)
+    }()
+
+    private init() {
+        // Default: point at the UI server. Override via Settings bundle or compile flag.
+        let urlString = Bundle.main.object(forInfoDictionaryKey: "LIBNOVEL_BASE_URL") as? String
+                        ?? "https://v2.libnovel.kalekber.cc"
+        baseURL = URL(string: urlString)!
+    }
+
+    // MARK: - Auth cookie management
+
+    func setAuthCookie(_ value: String?) {
+        authCookie = value
+        if let value {
+            // Also inject into shared cookie storage so redirects carry the cookie
+            let cookieProps: [HTTPCookiePropertyKey: Any] = [
+                .name: "libnovel_auth",
+                .value: value,
+                .domain: baseURL.host ?? "localhost",
+                .path: "/"
+            ]
+            if let cookie = HTTPCookie(properties: cookieProps) {
+                HTTPCookieStorage.shared.setCookie(cookie)
+            }
+        } else {
+            // Clear
+            let cookieStorage = HTTPCookieStorage.shared
+            cookieStorage.cookies(for: baseURL)?.forEach { cookieStorage.deleteCookie($0) }
+        }
+    }
+
+    // MARK: - Low-level request builder
+
+    private func makeRequest(_ path: String, method: String = "GET", body: Encodable? = nil) throws -> URLRequest {
+        // Build URL by appending the path string directly to the base URL string.
+        // appendingPathComponent() percent-encodes slashes, which breaks multi-segment
+        // paths like /api/chapter/slug/1. URL(string:) preserves slashes correctly.
+        let urlString = baseURL.absoluteString.trimmingCharacters(in: CharacterSet(charactersIn: "/"))
+            + "/" + path.trimmingCharacters(in: CharacterSet(charactersIn: "/"))
+        guard let url = URL(string: urlString) else {
+            throw APIError.invalidResponse
+        }
+        var req = URLRequest(url: url)
+        req.httpMethod = method
+        req.setValue("application/json", forHTTPHeaderField: "Accept")
+        if let body {
+            req.setValue("application/json", forHTTPHeaderField: "Content-Type")
+            req.httpBody = try JSONEncoder().encode(body)
+        }
+        return req
+    }
+
+    // MARK: - Generic fetch
+
+    func fetch<T: Decodable>(_ path: String, method: String = "GET", body: Encodable? = nil) async throws -> T {
+        let req = try makeRequest(path, method: method, body: body)
+        let (data, response) = try await session.data(for: req)
+        guard let http = response as? HTTPURLResponse else {
+            throw APIError.invalidResponse
+        }
+        let rawBody = String(data: data, encoding: .utf8) ?? "<non-utf8 data, \(data.count) bytes>"
+        guard (200..<300).contains(http.statusCode) else {
+            throw APIError.httpError(http.statusCode, rawBody)
+        }
+        do {
+            return try JSONDecoder.iso8601.decode(T.self, from: data)
+        } catch {
+            throw APIError.decodingError(error)
+        }
+    }
+
+    /// Like `fetch` but discards the response body — use for endpoints that return 204 No Content.
+    func fetchVoid(_ path: String, method: String = "GET", body: Encodable? = nil) async throws {
+        let req = try makeRequest(path, method: method, body: body)
+        let (data, response) = try await session.data(for: req)
+        guard let http = response as? HTTPURLResponse else {
+            throw APIError.invalidResponse
+        }
+        guard (200..<300).contains(http.statusCode) else {
+            let rawBody = String(data: data, encoding: .utf8) ?? "<non-utf8 data, \(data.count) bytes>"
+            throw APIError.httpError(http.statusCode, rawBody)
+        }
+    }
+
+    // MARK: - Auth
+
+    struct LoginRequest: Encodable {
+        let username: String
+        let password: String
+    }
+
+    struct LoginResponse: Decodable {
+        let token: String
+        let user: AppUser
+    }
+
+    func login(username: String, password: String) async throws -> LoginResponse {
+        try await fetch("/api/auth/login", method: "POST",
+                        body: LoginRequest(username: username, password: password))
+    }
+
+    func register(username: String, password: String) async throws -> LoginResponse {
+        try await fetch("/api/auth/register", method: "POST",
+                        body: LoginRequest(username: username, password: password))
+    }
+
+    func logout() async throws {
+        let _: EmptyResponse = try await fetch("/api/auth/logout", method: "POST")
+        setAuthCookie(nil)
+    }
+
+    // MARK: - Home
+
+    func homeData() async throws -> HomeDataResponse {
+        try await fetch("/api/home")
+    }
+
+    // MARK: - Library
+
+    func library() async throws -> [LibraryItem] {
+        try await fetch("/api/library")
+    }
+
+    func saveBook(slug: String) async throws {
+        let _: EmptyResponse = try await fetch("/api/library/\(slug)", method: "POST")
+    }
+
+    func unsaveBook(slug: String) async throws {
+        let _: EmptyResponse = try await fetch("/api/library/\(slug)", method: "DELETE")
+    }
+
+    // MARK: - Book Detail
+
+    func bookDetail(slug: String) async throws -> BookDetailResponse {
+        try await fetch("/api/book/\(slug)")
+    }
+
+    // MARK: - Chapter
+
+    func chapterContent(slug: String, chapter: Int) async throws -> ChapterResponse {
+        try await fetch("/api/chapter/\(slug)/\(chapter)")
+    }
+
+    // MARK: - Browse
+
+    func browse(page: Int, genre: String = "all", sort: String = "popular", status: String = "all") async throws -> BrowseResponse {
+        let query = "?page=\(page)&genre=\(genre)&sort=\(sort)&status=\(status)"
+        return try await fetch("/api/browse-page\(query)")
+    }
+
+    func search(query: String) async throws -> SearchResponse {
+        let encoded = query.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? query
+        return try await fetch("/api/search?q=\(encoded)")
+    }
+
+    func ranking() async throws -> [RankingItem] {
+        try await fetch("/api/ranking")
+    }
+
+    // MARK: - Progress
+
+    func progress() async throws -> [ProgressEntry] {
+        try await fetch("/api/progress")
+    }
+
+    func setProgress(slug: String, chapter: Int) async throws {
+        struct Body: Encodable { let chapter: Int }
+        let _: EmptyResponse = try await fetch("/api/progress/\(slug)", method: "POST", body: Body(chapter: chapter))
+    }
+
+    func deleteProgress(slug: String) async throws {
+        let _: EmptyResponse = try await fetch("/api/progress/\(slug)", method: "DELETE")
+    }
+
+    func audioTime(slug: String, chapter: Int) async throws -> Double? {
+        struct Response: Decodable { let audioTime: Double?; enum CodingKeys: String, CodingKey { case audioTime = "audio_time" } }
+        let r: Response = try await fetch("/api/progress/audio-time?slug=\(slug)&chapter=\(chapter)")
+        return r.audioTime
+    }
+
+    func setAudioTime(slug: String, chapter: Int, time: Double) async throws {
+        struct Body: Encodable { let slug: String; let chapter: Int; let audioTime: Double; enum CodingKeys: String, CodingKey { case slug, chapter; case audioTime = "audio_time" } }
+        let _: EmptyResponse = try await fetch("/api/progress/audio-time", method: "PATCH", body: Body(slug: slug, chapter: chapter, audioTime: time))
+    }
+
+    // MARK: - Audio
+
+    func triggerAudio(slug: String, chapter: Int, voice: String, speed: Double) async throws -> AudioTriggerResponse {
+        struct Body: Encodable { let voice: String; let speed: Double }
+        return try await fetch("/api/audio/\(slug)/\(chapter)", method: "POST", body: Body(voice: voice, speed: speed))
+    }
+
+    /// Poll GET /api/audio/status/{slug}/{n}?voice=... until the job is done or failed.
+    /// Returns the presigned/proxy URL on success, throws on failure or cancellation.
+    func pollAudioStatus(slug: String, chapter: Int, voice: String) async throws -> String {
+        let path = "/api/audio/status/\(slug)/\(chapter)?voice=\(voice)"
+        struct StatusResponse: Decodable {
+            let status: String
+            let url: String?
+            let error: String?
+        }
+        while true {
+            try Task.checkCancellation()
+            let r: StatusResponse = try await fetch(path)
+            switch r.status {
+            case "done":
+                guard let url = r.url, !url.isEmpty else {
+                    throw URLError(.badServerResponse)
+                }
+                return url
+            case "failed":
+                throw NSError(
+                    domain: "AudioGeneration",
+                    code: 0,
+                    userInfo: [NSLocalizedDescriptionKey: r.error ?? "Audio generation failed"]
+                )
+            default:
+                // pending / generating / idle — keep polling
+                try await Task.sleep(nanoseconds: 2_000_000_000) // 2 s
+            }
+        }
+    }
+
+    func presignAudio(slug: String, chapter: Int, voice: String) async throws -> String {
+        struct Response: Decodable { let url: String }
+        let r: Response = try await fetch("/api/presign/audio?slug=\(slug)&chapter=\(chapter)&voice=\(voice)")
+        return r.url
+    }
+
+    func presignVoiceSample(voice: String) async throws -> String {
+        struct Response: Decodable { let url: String }
+        let r: Response = try await fetch("/api/presign/voice-sample?voice=\(voice)")
+        return r.url
+    }
+
+    func voices() async throws -> [String] {
+        struct Response: Decodable { let voices: [String] }
+        let r: Response = try await fetch("/api/voices")
+        return r.voices
+    }
+
+    // MARK: - Settings
+
+    func settings() async throws -> UserSettings {
+        try await fetch("/api/settings")
+    }
+
+    func updateSettings(_ settings: UserSettings) async throws {
+        let _: EmptyResponse = try await fetch("/api/settings", method: "PUT", body: settings)
+    }
+
+    // MARK: - Sessions
+
+    func sessions() async throws -> [UserSession] {
+        struct Response: Decodable { let sessions: [UserSession] }
+        let r: Response = try await fetch("/api/sessions")
+        return r.sessions
+    }
+
+    func revokeSession(id: String) async throws {
+        let _: EmptyResponse = try await fetch("/api/sessions/\(id)", method: "DELETE")
+    }
+
+    // MARK: - Avatar
+
+    struct AvatarPresignResponse: Decodable {
+        let uploadURL: String
+        let key: String
+        enum CodingKeys: String, CodingKey { case uploadURL = "upload_url"; case key }
+    }
+
+    struct AvatarResponse: Decodable {
+        let avatarURL: String?
+        enum CodingKeys: String, CodingKey { case avatarURL = "avatar_url" }
+    }
+
+    /// Upload a profile avatar using a two-step presigned PUT flow:
+    /// 1. POST /api/profile/avatar → get a presigned PUT URL + object key
+    /// 2. PUT image bytes directly to MinIO via the presigned URL
+    /// 3. PATCH /api/profile/avatar with the key to record it in PocketBase
+    /// Returns the presigned GET URL for the uploaded avatar.
+    func uploadAvatar(_ imageData: Data, mimeType: String = "image/jpeg") async throws -> String? {
+        // Step 1: request a presigned PUT URL from the SvelteKit server
+        let presign: AvatarPresignResponse = try await fetch(
+            "/api/profile/avatar",
+            method: "POST",
+            body: ["mime_type": mimeType]
+        )
+
+        // Step 2: PUT the image bytes directly to MinIO
+        guard let putURL = URL(string: presign.uploadURL) else { throw APIError.invalidResponse }
+        var putReq = URLRequest(url: putURL)
+        putReq.httpMethod = "PUT"
+        putReq.setValue(mimeType, forHTTPHeaderField: "Content-Type")
+        putReq.httpBody = imageData
+
+        let (_, putResp) = try await session.data(for: putReq)
+        guard let putHttp = putResp as? HTTPURLResponse,
+              (200..<300).contains(putHttp.statusCode) else {
+            let code = (putResp as? HTTPURLResponse)?.statusCode ?? 0
+            throw APIError.httpError(code, "MinIO PUT failed")
+        }
+
+        // Step 3: record the key in PocketBase and get back a presigned GET URL
+        let result: AvatarResponse = try await fetch(
+            "/api/profile/avatar",
+            method: "PATCH",
+            body: ["key": presign.key]
+        )
+        return result.avatarURL
+    }
+
+    /// Fetches a fresh presigned GET URL for the current user's avatar.
+    /// Returns nil if the user has no avatar set.
+    /// Used on cold launch / session restore to convert the stored raw key into a viewable URL.
+    func fetchAvatarPresignedURL() async throws -> String? {
+        let result: AvatarResponse = try await fetch("/api/profile/avatar")
+        return result.avatarURL
+    }
+
+    // MARK: - User Profiles & Subscriptions
+
+    func fetchUserProfile(username: String) async throws -> PublicUserProfile {
+        try await fetch("/api/users/\(username)")
+    }
+
+    @discardableResult
+    func subscribeUser(username: String) async throws -> Bool {
+        struct Response: Decodable { let subscribed: Bool }
+        let r: Response = try await fetch("/api/users/\(username)/subscribe", method: "POST")
+        return r.subscribed
+    }
+
+    @discardableResult
+    func unsubscribeUser(username: String) async throws -> Bool {
+        struct Response: Decodable { let subscribed: Bool }
+        let r: Response = try await fetch("/api/users/\(username)/subscribe", method: "DELETE")
+        return r.subscribed
+    }
+
+    func fetchUserLibrary(username: String) async throws -> PublicUserLibraryResponse {
+        try await fetch("/api/users/\(username)/library")
+    }
+
+    // MARK: - Comments
+
+    func fetchComments(slug: String, sort: String = "top") async throws -> CommentsResponse {
+        try await fetch("/api/comments/\(slug)?sort=\(sort)")
+    }
+
+    struct PostCommentBody: Encodable {
+        let body: String
+        let parent_id: String?
+    }
+
+    func postComment(slug: String, body: String, parentId: String? = nil) async throws -> BookComment {
+        try await fetch("/api/comments/\(slug)", method: "POST", body: PostCommentBody(body: body, parent_id: parentId))
+    }
+
+    struct VoteBody: Encodable { let vote: String }
+
+    /// Cast, change, or toggle-off a vote on a comment.
+    /// Returns the updated BookComment (with refreshed upvotes/downvotes counts).
+    func voteComment(commentId: String, vote: String) async throws -> BookComment {
+        try await fetch("/api/comment/\(commentId)/vote", method: "POST", body: VoteBody(vote: vote))
+    }
+
+    /// Delete a comment (and its replies) by ID. Only the owner can delete.
+    func deleteComment(commentId: String) async throws {
+        try await fetchVoid("/api/comment/\(commentId)", method: "DELETE")
+    }
+}
+
+// MARK: - Response types
+
+struct HomeDataResponse: Decodable {
+    struct ContinueItem: Decodable {
+        let book: Book
+        let chapter: Int
+    }
+    let continueReading: [ContinueItem]
+    let recentlyUpdated: [Book]
+    let stats: HomeStats
+    let subscriptionFeed: [SubscriptionFeedItem]
+
+    enum CodingKeys: String, CodingKey {
+        case continueReading = "continue_reading"
+        case recentlyUpdated = "recently_updated"
+        case stats
+        case subscriptionFeed = "subscription_feed"
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        continueReading  = try c.decodeIfPresent([ContinueItem].self, forKey: .continueReading) ?? []
+        recentlyUpdated  = try c.decodeIfPresent([Book].self, forKey: .recentlyUpdated) ?? []
+        stats            = try c.decode(HomeStats.self, forKey: .stats)
+        subscriptionFeed = try c.decodeIfPresent([SubscriptionFeedItem].self, forKey: .subscriptionFeed) ?? []
+    }
+}
+
+struct LibraryItem: Decodable, Identifiable {
+    var id: String { book.id }
+    let book: Book
+    let savedAt: String
+    let lastChapter: Int?
+
+    enum CodingKeys: String, CodingKey {
+        case book
+        case savedAt = "saved_at"
+        case lastChapter = "last_chapter"
+    }
+}
+
+struct BookDetailResponse: Decodable {
+    let book: Book
+    let chapters: [ChapterIndex]
+    let previewChapters: [PreviewChapter]?
+    let inLib: Bool
+    let saved: Bool
+    let lastChapter: Int?
+
+    enum CodingKeys: String, CodingKey {
+        case book, chapters
+        case previewChapters = "preview_chapters"
+        case inLib = "in_lib"
+        case saved
+        case lastChapter = "last_chapter"
+    }
+}
+
+struct ChapterResponse: Decodable {
+    let book: BookBrief
+    let chapter: ChapterIndex
+    let html: String
+    let voices: [String]
+    let prev: Int?
+    let next: Int?
+    let chapters: [ChapterIndexBrief]
+    let isPreview: Bool
+
+    enum CodingKeys: String, CodingKey {
+        case book, chapter, html, voices, prev, next, chapters
+        case isPreview = "is_preview"
+    }
+}
+
+struct BrowseResponse: Decodable {
+    let novels: [BrowseNovel]
+    let page: Int
+    let hasNext: Bool
+}
+
+struct BrowseNovel: Decodable, Identifiable, Hashable {
+    var id: String { slug.isEmpty ? url : slug }
+    let slug: String
+    let title: String
+    let cover: String
+    let rank: String
+    let rating: String
+    let chapters: String
+    let url: String
+    let author: String
+    let status: String
+    let genres: [String]
+
+    enum CodingKeys: String, CodingKey {
+        case slug, title, cover, rank, rating, chapters, url, author, status, genres
+    }
+
+    init(from decoder: Decoder) throws {
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        slug    = try c.decodeIfPresent(String.self, forKey: .slug) ?? ""
+        title   = try c.decode(String.self, forKey: .title)
+        cover   = try c.decodeIfPresent(String.self, forKey: .cover) ?? ""
+        rank    = try c.decodeIfPresent(String.self, forKey: .rank) ?? ""
+        rating  = try c.decodeIfPresent(String.self, forKey: .rating) ?? ""
+        chapters = try c.decodeIfPresent(String.self, forKey: .chapters) ?? ""
+        url     = try c.decodeIfPresent(String.self, forKey: .url) ?? ""
+        author  = try c.decodeIfPresent(String.self, forKey: .author) ?? ""
+        status  = try c.decodeIfPresent(String.self, forKey: .status) ?? ""
+        genres  = try c.decodeIfPresent([String].self, forKey: .genres) ?? []
+    }
+}
+
+struct SearchResponse: Decodable {
+    let results: [BrowseNovel]
+    let localCount: Int
+    let remoteCount: Int
+
+    enum CodingKeys: String, CodingKey {
+        case results
+        case localCount = "local_count"
+        case remoteCount = "remote_count"
+    }
+}
+
+/// Returned by POST /api/audio/{slug}/{n}.
+/// - 202 Accepted: job enqueued → poll via pollAudioStatus()
+/// - 200 OK: audio already cached → url is ready to play
+struct AudioTriggerResponse: Decodable {
+    let jobId: String?   // present on 202
+    let status: String?  // present on 202: "pending" | "generating"
+    let url: String?     // present on 200: proxy URL ready to play
+    let filename: String? // present on 200
+
+    enum CodingKeys: String, CodingKey {
+        case jobId = "job_id"
+        case status, url, filename
+    }
+
+    /// True when the server accepted the request and created an async job.
+    var isAsync: Bool { jobId != nil }
+}
+
+struct ProgressEntry: Decodable, Identifiable {
+    var id: String { slug }
+    let slug: String
+    let chapter: Int
+    let audioTime: Double?
+    let updated: String
+
+    enum CodingKeys: String, CodingKey {
+        case slug, chapter, updated
+        case audioTime = "audio_time"
+    }
+}
+
+struct EmptyResponse: Decodable {}
+
+// MARK: - API Error
+
+enum APIError: LocalizedError {
+    case invalidResponse
+    case httpError(Int, String)
+    case decodingError(Error)
+    case unauthorized
+    case networkError(Error)
+
+    var errorDescription: String? {
+        switch self {
+        case .invalidResponse: return "Invalid server response"
+        case .httpError(let code, let msg): return "HTTP \(code): \(msg)"
+        case .decodingError(let e): return "Decode error: \(e.localizedDescription)"
+        case .unauthorized: return "Not authenticated"
+        case .networkError(let e): return e.localizedDescription
+        }
+    }
+}
+
+// MARK: - JSONDecoder helper
+
+extension JSONDecoder {
+    static let iso8601: JSONDecoder = {
+        let d = JSONDecoder()
+        d.dateDecodingStrategy = .iso8601
+        return d
+    }()
+}

ios/LibNovel/LibNovel/Resources/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,12 @@
+{
+  "colors": [
+    {
+      "color": {
+        "color-space": "srgb",
+        "components": { "alpha": "1.000", "blue": "0.040", "green": "0.620", "red": "0.960" }
+      },
+      "idiom": "universal"
+    }
+  ],
+  "info": { "author": "xcode", "version": 1 }
+}

ios/LibNovel/LibNovel/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,14 @@
+{
+  "images" : [
+    {
+      "filename" : "icon-1024.png",
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/LibNovel/LibNovel/Resources/Assets.xcassets/Contents.json

@@ -0,0 +1,3 @@
+{
+  "info": { "author": "xcode", "version": 1 }
+}

ios/LibNovel/LibNovel/Resources/Info.plist

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDisplayName</key>
+	<string>LibNovel</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleName</key>
+	<string>LibNovel</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleVersion</key>
+	<string>1000</string>
+	<key>LIBNOVEL_BASE_URL</key>
+	<string>$(LIBNOVEL_BASE_URL)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>audio</string>
+		<string>fetch</string>
+		<string>processing</string>
+	</array>
+	<key>UILaunchScreen</key>
+	<dict/>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

ios/LibNovel/LibNovel/Services/AudioDownloadService.swift

@@ -0,0 +1,318 @@
+import Foundation
+import Combine
+
+// MARK: - AudioDownloadService
+// Manages offline TTS audio downloads with progress tracking and persistent storage.
+// Downloads are saved to the app's Documents directory, organized by slug/chapter/voice.
+
+@MainActor
+final class AudioDownloadService: NSObject, ObservableObject {
+    static let shared = AudioDownloadService()
+    
+    // MARK: - Published State
+    
+    @Published var downloads: [String: DownloadProgress] = [:]  // key: "slug::chapter::voice"
+    @Published var downloadedChapters: Set<String> = []  // key: "slug::chapter::voice"
+    
+    // MARK: - Private
+    
+    private var session: URLSession!
+    private var activeTasks: [String: URLSessionDownloadTask] = [:]
+    private let fileManager = FileManager.default
+    private let metadataKey = "downloadedChaptersMetadata"
+    
+    // MARK: - Init
+    
+    private override init() {
+        super.init()
+        let config = URLSessionConfiguration.background(withIdentifier: "cc.kalekber.libnovel.audio-downloads")
+        config.isDiscretionary = false
+        config.sessionSendsLaunchEvents = true
+        session = URLSession(configuration: config, delegate: self, delegateQueue: nil)
+        loadMetadata()
+    }
+    
+    // MARK: - Public API
+    
+    /// Check if a chapter's audio is downloaded offline
+    func isDownloaded(slug: String, chapter: Int, voice: String) -> Bool {
+        let key = makeKey(slug: slug, chapter: chapter, voice: voice)
+        return downloadedChapters.contains(key)
+    }
+    
+    /// Get the local file URL for a downloaded chapter (nil if not downloaded)
+    func localURL(slug: String, chapter: Int, voice: String) -> URL? {
+        guard isDownloaded(slug: slug, chapter: chapter, voice: voice) else { return nil }
+        return audioFileURL(slug: slug, chapter: chapter, voice: voice)
+    }
+    
+    /// Start downloading a chapter's audio
+    func download(slug: String, chapter: Int, voice: String) async throws {
+        let key = makeKey(slug: slug, chapter: chapter, voice: voice)
+        
+        print("📥 AudioDownload: Starting download - slug: \(slug), chapter: \(chapter), voice: \(voice)")
+        
+        // Already downloaded or in progress
+        if downloadedChapters.contains(key) {
+            print("⚠️ AudioDownload: Already downloaded - key: \(key)")
+            return
+        }
+        if activeTasks[key] != nil {
+            print("⚠️ AudioDownload: Already in progress - key: \(key)")
+            return
+        }
+        
+        // Get presigned URL from API
+        print("🔗 AudioDownload: Fetching presigned URL...")
+        let urlString = try await APIClient.shared.presignAudio(slug: slug, chapter: chapter, voice: voice)
+        guard let url = URL(string: urlString) else {
+            print("❌ AudioDownload: Invalid URL - \(urlString)")
+            throw URLError(.badURL)
+        }
+        
+        print("🔗 AudioDownload: Presigned URL obtained: \(url.absoluteString)")
+        
+        // Create download task
+        let task = session.downloadTask(with: url)
+        task.taskDescription = key  // Use taskDescription to identify the download
+        activeTasks[key] = task
+        
+        // Initialize progress tracking
+        downloads[key] = DownloadProgress(
+            slug: slug,
+            chapter: chapter,
+            voice: voice,
+            progress: 0,
+            totalBytes: 0,
+            downloadedBytes: 0,
+            status: .downloading
+        )
+        
+        print("🚀 AudioDownload: Starting download task - key: \(key)")
+        task.resume()
+    }
+    
+    /// Cancel an ongoing download
+    func cancelDownload(slug: String, chapter: Int, voice: String) {
+        let key = makeKey(slug: slug, chapter: chapter, voice: voice)
+        activeTasks[key]?.cancel()
+        activeTasks.removeValue(forKey: key)
+        downloads.removeValue(forKey: key)
+    }
+    
+    /// Delete a downloaded chapter
+    func deleteDownload(slug: String, chapter: Int, voice: String) throws {
+        let key = makeKey(slug: slug, chapter: chapter, voice: voice)
+        let fileURL = audioFileURL(slug: slug, chapter: chapter, voice: voice)
+        
+        if fileManager.fileExists(atPath: fileURL.path) {
+            try fileManager.removeItem(at: fileURL)
+        }
+        
+        downloadedChapters.remove(key)
+        downloads.removeValue(forKey: key)
+        saveMetadata()
+    }
+    
+    /// Get total storage used by downloads (in bytes)
+    func getTotalStorageUsed() -> Int64 {
+        guard let documentsURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first else {
+            return 0
+        }
+        
+        let audioDir = documentsURL.appendingPathComponent("audio")
+        guard let enumerator = fileManager.enumerator(at: audioDir, includingPropertiesForKeys: [.fileSizeKey]) else {
+            return 0
+        }
+        
+        var totalSize: Int64 = 0
+        for case let fileURL as URL in enumerator {
+            if let fileSize = try? fileURL.resourceValues(forKeys: [.fileSizeKey]).fileSize {
+                totalSize += Int64(fileSize)
+            }
+        }
+        return totalSize
+    }
+    
+    /// Delete all downloads
+    func deleteAllDownloads() throws {
+        guard let documentsURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first else {
+            return
+        }
+        
+        let audioDir = documentsURL.appendingPathComponent("audio")
+        if fileManager.fileExists(atPath: audioDir.path) {
+            try fileManager.removeItem(at: audioDir)
+        }
+        
+        downloadedChapters.removeAll()
+        downloads.removeAll()
+        activeTasks.values.forEach { $0.cancel() }
+        activeTasks.removeAll()
+        saveMetadata()
+    }
+    
+    /// Get list of all book slugs that have offline downloads
+    func getOfflineBookSlugs() -> [String] {
+        let slugs = downloadedChapters.compactMap { key -> String? in
+            let components = key.split(separator: "::")
+            guard components.count == 3 else { return nil }
+            return String(components[0])
+        }
+        return Array(Set(slugs)).sorted()
+    }
+    
+    /// Get count of downloaded chapters for a specific book
+    func getDownloadedChapterCount(for slug: String) -> Int {
+        return downloadedChapters.filter { key in
+            let components = key.split(separator: "::")
+            guard components.count == 3 else { return false }
+            return String(components[0]) == slug
+        }.count
+    }
+    
+    // MARK: - Private Helpers
+    
+    /// Build the canonical download key used for both in-memory tracking and UserDefaults.
+    /// Uses `::` as separator so slugs that contain `-` are unambiguous.
+    func makeKey(slug: String, chapter: Int, voice: String) -> String {
+        "\(slug)::\(chapter)::\(voice)"
+    }
+    
+    nonisolated private func audioFileURL(slug: String, chapter: Int, voice: String) -> URL {
+        guard let documentsURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first else {
+            fatalError("Could not access documents directory")
+        }
+        
+        return documentsURL
+            .appendingPathComponent("audio")
+            .appendingPathComponent(slug)
+            .appendingPathComponent("\(chapter)-\(voice).mp3")
+    }
+    
+    private func loadMetadata() {
+        if let data = UserDefaults.standard.data(forKey: metadataKey),
+           let decoded = try? JSONDecoder().decode(Set<String>.self, from: data) {
+            downloadedChapters = decoded
+        }
+    }
+    
+    private func saveMetadata() {
+        if let encoded = try? JSONEncoder().encode(downloadedChapters) {
+            UserDefaults.standard.set(encoded, forKey: metadataKey)
+        }
+    }
+}
+
+// MARK: - URLSessionDownloadDelegate
+
+extension AudioDownloadService: URLSessionDownloadDelegate {
+    nonisolated func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
+        guard let key = downloadTask.taskDescription else {
+            print("⚠️ AudioDownload: No task description")
+            return
+        }
+        
+        print("✅ AudioDownload: Finished downloading - key: \(key)")
+        
+        let components = key.split(separator: "::")
+        guard components.count == 3,
+              let chapter = Int(components[1]) else {
+            print("⚠️ AudioDownload: Invalid key format: \(key)")
+            return
+        }
+        
+        let slug = String(components[0])
+        let voice = String(components[2])
+        
+        let destinationURL = audioFileURL(slug: slug, chapter: chapter, voice: voice)
+        
+        print("📁 AudioDownload: Moving from \(location.path) to \(destinationURL.path)")
+        
+        do {
+            // Create directory if needed
+            let directory = destinationURL.deletingLastPathComponent()
+            try fileManager.createDirectory(at: directory, withIntermediateDirectories: true)
+            
+            // Move file from temp location to permanent storage
+            if fileManager.fileExists(atPath: destinationURL.path) {
+                print("📁 AudioDownload: Removing existing file at destination")
+                try fileManager.removeItem(at: destinationURL)
+            }
+            try fileManager.moveItem(at: location, to: destinationURL)
+            
+            print("✅ AudioDownload: File moved successfully")
+            
+            Task { @MainActor in
+                print("✅ AudioDownload: Marking as completed - key: \(key)")
+                self.downloadedChapters.insert(key)
+                self.downloads.removeValue(forKey: key)  // Remove from active downloads
+                self.activeTasks.removeValue(forKey: key)
+                self.saveMetadata()
+                print("✅ AudioDownload: Metadata saved, downloadedChapters count: \(self.downloadedChapters.count)")
+            }
+        } catch {
+            print("❌ AudioDownload: Failed to move file - \(error.localizedDescription)")
+            Task { @MainActor in
+                self.downloads[key]?.status = .failed(error.localizedDescription)
+                self.activeTasks.removeValue(forKey: key)
+            }
+        }
+    }
+    
+    nonisolated func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {
+        guard let key = downloadTask.taskDescription else { return }
+        
+        let progress = totalBytesExpectedToWrite > 0 ? Double(totalBytesWritten) / Double(totalBytesExpectedToWrite) : 0
+        
+        if Int(progress * 100) % 10 == 0 {  // Log every 10%
+            print("📊 AudioDownload: Progress for \(key): \(Int(progress * 100))% (\(totalBytesWritten)/\(totalBytesExpectedToWrite) bytes)")
+        }
+        
+        Task { @MainActor in
+            if var progressData = self.downloads[key] {
+                progressData.downloadedBytes = totalBytesWritten
+                progressData.totalBytes = totalBytesExpectedToWrite
+                progressData.progress = progress
+                self.downloads[key] = progressData
+            }
+        }
+    }
+    
+    nonisolated func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) {
+        guard let key = task.taskDescription else { return }
+        
+        if let error = error {
+            let nsError = error as NSError
+            if nsError.code != NSURLErrorCancelled {
+                print("❌ AudioDownload: Task completed with error - key: \(key), error: \(error.localizedDescription)")
+                Task { @MainActor in
+                    self.downloads[key]?.status = .failed(error.localizedDescription)
+                    self.activeTasks.removeValue(forKey: key)
+                }
+            } else {
+                print("⚠️ AudioDownload: Task cancelled - key: \(key)")
+            }
+        } else {
+            print("✅ AudioDownload: Task completed without error - key: \(key)")
+        }
+    }
+}
+
+// MARK: - Supporting Types
+
+struct DownloadProgress: Equatable {
+    let slug: String
+    let chapter: Int
+    let voice: String
+    var progress: Double
+    var totalBytes: Int64
+    var downloadedBytes: Int64
+    var status: DownloadStatus
+}
+
+enum DownloadStatus: Equatable {
+    case downloading
+    case completed
+    case failed(String)
+}

ios/LibNovel/LibNovel/Services/AudioPlayerService.swift

@@ -0,0 +1,627 @@
+import Foundation
+import AVFoundation
+import MediaPlayer
+import Combine
+import Kingfisher
+
+// MARK: - PlaybackProgress
+// Isolated ObservableObject for high-frequency playback state (currentTime,
+// duration, isPlaying). Keeping these separate from AudioPlayerService means
+// the 0.5-second time-observer ticks only invalidate views that explicitly
+// observe PlaybackProgress — menus and other stable UI are unaffected.
+
+@MainActor
+final class PlaybackProgress: ObservableObject {
+    @Published var currentTime: Double = 0
+    @Published var duration: Double = 0
+    @Published var isPlaying: Bool = false
+}
+
+// MARK: - AudioPlayerService
+// Central singleton that owns AVPlayer, drives audio state, handles lock-screen
+// controls (NowPlayingInfoCenter + MPRemoteCommandCenter), and pre-fetches the
+// next chapter audio.
+
+@MainActor
+final class AudioPlayerService: ObservableObject {
+
+    // MARK: - Published state
+
+    @Published var slug: String = ""
+    @Published var chapter: Int = 0
+    @Published var chapterTitle: String = ""
+    @Published var bookTitle: String = ""
+    @Published var coverURL: String = ""
+    @Published var voice: String = "af_bella"
+    @Published var speed: Double = 1.0
+    @Published var chapters: [ChapterIndexBrief] = []
+
+    @Published var status: AudioPlayerStatus = .idle
+    @Published var audioURL: String = ""
+    @Published var errorMessage: String = ""
+    @Published var generationProgress: Double = 0
+
+    /// High-frequency playback state (currentTime / duration / isPlaying).
+    /// Views that only need the seek bar or play-pause button should observe
+    /// this directly so they don't trigger re-renders of menu-bearing parents.
+    let progress = PlaybackProgress()
+
+    // Convenience forwarders so non-view call sites keep compiling unchanged.
+    var currentTime: Double {
+        get { progress.currentTime }
+        set { progress.currentTime = newValue }
+    }
+    var duration: Double {
+        get { progress.duration }
+        set { progress.duration = newValue }
+    }
+    var isPlaying: Bool {
+        get { progress.isPlaying }
+        set { progress.isPlaying = newValue }
+    }
+
+    @Published var autoNext: Bool = false
+    @Published var nextChapter: Int? = nil
+    @Published var prevChapter: Int? = nil
+    
+    @Published var sleepTimer: SleepTimerOption? = nil
+    /// Human-readable countdown string shown in the full player near the moon button.
+    /// e.g. "38:12" for minute-based, "2 ch left" for chapter-based, "" when off.
+    @Published var sleepTimerRemainingText: String = ""
+
+    @Published var nextPrefetchStatus: NextPrefetchStatus = .none
+    @Published var nextAudioURL: String = ""
+    @Published var nextPrefetchedChapter: Int? = nil
+
+    var isActive: Bool {
+        switch status {
+        case .idle: return false
+        default: return true
+        }
+    }
+
+    // MARK: - Private
+
+    private var player: AVPlayer?
+    private var playerItem: AVPlayerItem?
+    private var timeObserver: Any?
+    private var statusObserver: AnyCancellable?
+    private var durationObserver: AnyCancellable?
+    private var finishObserver: AnyCancellable?
+    private var generationTask: Task<Void, Never>?
+    private var prefetchTask: Task<Void, Never>?
+
+    // Cached cover image — downloaded once per chapter load, reused on every
+    // updateNowPlaying() call so we don't re-download on every play/pause/seek.
+    private var cachedCoverArtwork: MPMediaItemArtwork?
+    private var cachedCoverURL: String = ""
+    
+    // Sleep timer tracking
+    private var sleepTimerTask: Task<Void, Never>?
+    private var sleepTimerStartChapter: Int = 0
+    /// Absolute deadline for minute-based timers (nil when not active or chapter-based).
+    private var sleepTimerDeadline: Date? = nil
+    /// 1-second tick task that keeps sleepTimerRemainingText up-to-date.
+    private var sleepTimerCountdownTask: Task<Void, Never>? = nil
+
+    // MARK: - Init
+
+    init() {
+        configureAudioSession()
+        setupRemoteCommandCenter()
+    }
+
+    // MARK: - Public API
+
+    /// Load audio for a specific chapter. Triggers TTS generation if not cached.
+    func load(slug: String, chapter: Int, chapterTitle: String,
+              bookTitle: String, coverURL: String, voice: String, speed: Double,
+              chapters: [ChapterIndexBrief], nextChapter: Int?, prevChapter: Int?) {
+        generationTask?.cancel()
+        prefetchTask?.cancel()
+        stop()
+
+        self.slug = slug
+        self.chapter = chapter
+        self.chapterTitle = chapterTitle
+        self.bookTitle = bookTitle
+        self.coverURL = coverURL
+        self.voice = voice
+        self.speed = speed
+        self.chapters = chapters
+        self.nextChapter = nextChapter
+        self.prevChapter = prevChapter
+        self.nextPrefetchStatus = .none
+        self.nextAudioURL = ""
+        self.nextPrefetchedChapter = nil
+        
+        // Reset sleep timer start chapter if it's a chapter-based timer
+        if case .chapters = sleepTimer {
+            sleepTimerStartChapter = chapter
+        }
+
+        status = .generating
+        generationProgress = 0
+
+        // Invalidate cover cache if the book changed.
+        if coverURL != cachedCoverURL {
+            cachedCoverArtwork = nil
+            cachedCoverURL = coverURL
+            prefetchCoverArtwork(from: coverURL)
+        }
+
+        generationTask = Task { await generateAudio() }
+    }
+
+    func play() {
+        player?.play()
+        player?.rate = Float(speed)
+        isPlaying = true
+        updateNowPlaying()
+    }
+
+    func pause() {
+        player?.pause()
+        isPlaying = false
+        updateNowPlaying()
+    }
+
+    func togglePlayPause() {
+        isPlaying ? pause() : play()
+    }
+
+    func seek(to seconds: Double) {
+        let time = CMTime(seconds: seconds, preferredTimescale: 600)
+        currentTime = seconds   // optimistic UI update
+        player?.seek(to: time, toleranceBefore: .zero, toleranceAfter: .zero) { [weak self] _ in
+            guard let self else { return }
+            Task { @MainActor in self.updateNowPlaying() }
+        }
+    }
+
+    func skip(by seconds: Double) {
+        seek(to: max(0, min(currentTime + seconds, duration)))
+    }
+
+    func setSpeed(_ newSpeed: Double) {
+        speed = newSpeed
+        if isPlaying { player?.rate = Float(newSpeed) }
+        updateNowPlaying()
+    }
+    
+    func setSleepTimer(_ option: SleepTimerOption?) {
+        // Cancel existing timer + countdown
+        sleepTimerTask?.cancel()
+        sleepTimerTask = nil
+        sleepTimerCountdownTask?.cancel()
+        sleepTimerCountdownTask = nil
+        sleepTimerDeadline = nil
+        
+        sleepTimer = option
+        
+        guard let option else {
+            sleepTimerRemainingText = ""
+            return
+        }
+        
+        // Start timer based on option
+        switch option {
+        case .chapters(let count):
+            sleepTimerStartChapter = chapter
+            // Update display immediately; chapter changes are tracked in handlePlaybackFinished.
+            updateChapterTimerLabel(chaptersRemaining: count)
+            
+        case .minutes(let minutes):
+            let deadline = Date().addingTimeInterval(Double(minutes) * 60)
+            sleepTimerDeadline = deadline
+            // Stop playback when the deadline is reached.
+            sleepTimerTask = Task { [weak self] in
+                try? await Task.sleep(nanoseconds: UInt64(minutes) * 60 * 1_000_000_000)
+                guard let self, !Task.isCancelled else { return }
+                await MainActor.run {
+                    self.stop()
+                    self.sleepTimer = nil
+                    self.sleepTimerRemainingText = ""
+                }
+            }
+            // 1-second tick to keep the countdown label fresh.
+            sleepTimerCountdownTask = Task { [weak self] in
+                while !Task.isCancelled {
+                    try? await Task.sleep(nanoseconds: 1_000_000_000)
+                    guard let self, !Task.isCancelled else { return }
+                    await MainActor.run {
+                        guard let deadline = self.sleepTimerDeadline else { return }
+                        let remaining = max(0, deadline.timeIntervalSinceNow)
+                        self.sleepTimerRemainingText = Self.formatCountdown(remaining)
+                    }
+                }
+            }
+            // Set initial label without waiting for the first tick.
+            sleepTimerRemainingText = Self.formatCountdown(Double(minutes) * 60)
+        }
+    }
+    
+    private func updateChapterTimerLabel(chaptersRemaining: Int) {
+        sleepTimerRemainingText = chaptersRemaining == 1 ? "1 ch left" : "\(chaptersRemaining) ch left"
+    }
+
+    private static func formatCountdown(_ seconds: Double) -> String {
+        let s = Int(max(0, seconds))
+        let m = s / 60
+        let sec = s % 60
+        return "\(m):\(String(format: "%02d", sec))"
+    }
+
+    func stop() {
+        player?.pause()
+        teardownPlayer()
+        isPlaying = false
+        currentTime = 0
+        duration = 0
+        audioURL = ""
+        status = .idle
+        
+        // Cancel sleep timer + countdown
+        sleepTimerTask?.cancel()
+        sleepTimerTask = nil
+        sleepTimerCountdownTask?.cancel()
+        sleepTimerCountdownTask = nil
+        sleepTimerDeadline = nil
+        sleepTimer = nil
+        sleepTimerRemainingText = ""
+    }
+
+    // MARK: - Audio generation
+
+    private func generateAudio() async {
+        guard !slug.isEmpty, chapter > 0 else { return }
+        
+        // Check if audio is downloaded locally first
+        if let localURL = AudioDownloadService.shared.localURL(slug: slug, chapter: chapter, voice: voice) {
+            audioURL = localURL.absoluteString
+            status = .ready
+            generationProgress = 100
+            await playURL(localURL.absoluteString)
+            await prefetchNext()
+            return
+        }
+        
+        do {
+            // Fast path: audio already in MinIO — get a presigned URL and play immediately.
+            if let presignedURL = try? await APIClient.shared.presignAudio(slug: slug, chapter: chapter, voice: voice) {
+                audioURL = presignedURL
+                status = .ready
+                generationProgress = 100
+                await playURL(presignedURL)
+                await prefetchNext()
+                return
+            }
+
+            // Slow path: trigger TTS generation (async — returns 202 immediately).
+            status = .generating
+            generationProgress = 10
+            let trigger = try await APIClient.shared.triggerAudio(slug: slug, chapter: chapter, voice: voice, speed: speed)
+
+            let playableURL: String
+            if trigger.isAsync {
+                // 202 Accepted: poll until done.
+                generationProgress = 30
+                playableURL = try await APIClient.shared.pollAudioStatus(slug: slug, chapter: chapter, voice: voice)
+            } else {
+                // 200: already cached URL returned inline.
+                guard let url = trigger.url, !url.isEmpty else {
+                    throw URLError(.badServerResponse)
+                }
+                playableURL = url
+            }
+
+            audioURL = playableURL
+            status = .ready
+            generationProgress = 100
+            await playURL(playableURL)
+            await prefetchNext()
+        } catch is CancellationError {
+            // Cancelled — no-op
+        } catch {
+            status = .error(error.localizedDescription)
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    // MARK: - Prefetch next chapter
+    // Always prefetch regardless of autoNext — faster playback when the user
+    // manually navigates forward. autoNext only controls whether we auto-navigate.
+
+    private func prefetchNext() async {
+        guard let next = nextChapter, !Task.isCancelled else { return }
+        nextPrefetchStatus = .prefetching
+        nextPrefetchedChapter = next
+        do {
+            // Fast path: already in MinIO.
+            if let presignedURL = try? await APIClient.shared.presignAudio(slug: slug, chapter: next, voice: voice) {
+                nextAudioURL = presignedURL
+                nextPrefetchStatus = .prefetched
+                return
+            }
+            // Slow path: trigger generation; poll until done (background — won't block playback).
+            let trigger = try await APIClient.shared.triggerAudio(slug: slug, chapter: next, voice: voice, speed: speed)
+            let url: String
+            if trigger.isAsync {
+                url = try await APIClient.shared.pollAudioStatus(slug: slug, chapter: next, voice: voice)
+            } else {
+                guard let u = trigger.url, !u.isEmpty else { throw URLError(.badServerResponse) }
+                url = u
+            }
+            nextAudioURL = url
+            nextPrefetchStatus = .prefetched
+        } catch {
+            nextPrefetchStatus = .failed
+        }
+    }
+
+    // MARK: - AVPlayer management
+
+    private func playURL(_ urlString: String) async {
+        // Resolve relative paths (e.g. "/api/audio/...") to absolute URLs.
+        let resolved: URL?
+        if urlString.hasPrefix("http://") || urlString.hasPrefix("https://") {
+            resolved = URL(string: urlString)
+        } else {
+            resolved = URL(string: urlString, relativeTo: await APIClient.shared.baseURL)?.absoluteURL
+        }
+        guard let url = resolved else { return }
+        teardownPlayer()
+        let item = AVPlayerItem(url: url)
+        playerItem = item
+        player = AVPlayer(playerItem: item)
+
+        // KVO: update duration as soon as asset metadata is loaded.
+        durationObserver = item.publisher(for: \.duration)
+            .receive(on: RunLoop.main)
+            .sink { [weak self] dur in
+                guard let self else { return }
+                let secs = dur.seconds
+                if secs.isFinite && secs > 0 {
+                    self.duration = secs
+                    self.updateNowPlaying()
+                }
+            }
+
+        // KVO: set playback rate once the item is ready.
+        // Do NOT call player?.play() unconditionally — let readyToPlay trigger it
+        // so we don't race between AVPlayer's internal buffering and our call.
+        statusObserver = item.publisher(for: \.status)
+            .receive(on: RunLoop.main)
+            .sink { [weak self] itemStatus in
+                guard let self else { return }
+                if itemStatus == .readyToPlay {
+                    self.player?.rate = Float(self.speed)
+                    self.isPlaying = true
+                    self.updateNowPlaying()
+                } else if itemStatus == .failed {
+                    self.status = .error(item.error?.localizedDescription ?? "Playback failed")
+                    self.errorMessage = item.error?.localizedDescription ?? "Playback failed"
+                }
+            }
+
+        // Periodic time observer for seek bar position.
+        timeObserver = player?.addPeriodicTimeObserver(
+            forInterval: CMTime(seconds: 0.5, preferredTimescale: 600),
+            queue: .main
+        ) { [weak self] time in
+            guard let self else { return }
+            Task { @MainActor in
+                let secs = time.seconds
+                if secs.isFinite && secs >= 0 {
+                    self.currentTime = secs
+                }
+            }
+        }
+
+        // Observe when playback ends.
+        finishObserver = NotificationCenter.default
+            .publisher(for: AVPlayerItem.didPlayToEndTimeNotification, object: item)
+            .sink { [weak self] _ in
+                Task { @MainActor in
+                    self?.handlePlaybackFinished()
+                }
+            }
+
+        // Kick off buffering — actual playback starts via statusObserver above.
+        player?.play()
+    }
+
+    private func teardownPlayer() {
+        if let observer = timeObserver { player?.removeTimeObserver(observer) }
+        timeObserver = nil
+        statusObserver = nil
+        durationObserver = nil
+        finishObserver = nil
+        player = nil
+        playerItem = nil
+    }
+
+    private func handlePlaybackFinished() {
+        isPlaying = false
+
+        guard let next = nextChapter else { return }
+        
+        // Check chapter-based sleep timer
+        if case .chapters(let count) = sleepTimer {
+            let chaptersPlayed = chapter - sleepTimerStartChapter + 1
+            if chaptersPlayed >= count {
+                stop()
+                return
+            }
+            // Update the remaining chapters label.
+            let remaining = count - chaptersPlayed
+            updateChapterTimerLabel(chaptersRemaining: remaining)
+        }
+
+        // Always notify the view that the chapter finished (it may update UI).
+        NotificationCenter.default.post(
+            name: .audioDidFinishChapter,
+            object: nil,
+            userInfo: ["next": next, "autoNext": autoNext]
+        )
+
+        // If autoNext is on, load the next chapter internally right away.
+        // We already have the metadata in `chapters`, so we can reconstruct
+        // everything without waiting for the view to navigate.
+        guard autoNext else { return }
+
+        let nextTitle = chapters.first(where: { $0.number == next })?.title ?? ""
+        let nextNextChapter = chapters.first(where: { $0.number > next })?.number
+        let nextPrevChapter: Int? = chapter  // Current chapter becomes previous for the next one
+
+        // If we already prefetched a URL for the next chapter, skip straight to
+        // playback and kick off generation in the background for the one after.
+        if nextPrefetchStatus == .prefetched, !nextAudioURL.isEmpty {
+            let url = nextAudioURL
+
+            // Advance state before tearing down the current player.
+            chapter = next
+            chapterTitle = nextTitle
+            nextChapter = nextNextChapter
+            prevChapter = nextPrevChapter
+            nextPrefetchStatus = .none
+            nextAudioURL = ""
+            nextPrefetchedChapter = nil
+            audioURL = url
+            status = .ready
+            generationProgress = 100
+            
+            // Update sleep timer start chapter if using chapter-based timer
+            if case .chapters = sleepTimer {
+                sleepTimerStartChapter = next
+            }
+
+            generationTask = Task {
+                await playURL(url)
+                await prefetchNext()
+            }
+        } else {
+            // No prefetch available — do a full load.
+            load(
+                slug: slug,
+                chapter: next,
+                chapterTitle: nextTitle,
+                bookTitle: bookTitle,
+                coverURL: coverURL,
+                voice: voice,
+                speed: speed,
+                chapters: chapters,
+                nextChapter: nextNextChapter,
+                prevChapter: nextPrevChapter
+            )
+        }
+    }
+
+    // MARK: - Cover art prefetch
+
+    private func prefetchCoverArtwork(from urlString: String) {
+        guard !urlString.isEmpty, let url = URL(string: urlString) else { return }
+        KingfisherManager.shared.retrieveImage(with: url) { [weak self] result in
+            guard let self else { return }
+            if case .success(let value) = result {
+                let image = value.image
+                let artwork = MPMediaItemArtwork(boundsSize: image.size) { _ in image }
+                Task { @MainActor in
+                    self.cachedCoverArtwork = artwork
+                    self.updateNowPlaying()
+                }
+            }
+        }
+    }
+
+    // MARK: - Audio Session
+
+    private func configureAudioSession() {
+        do {
+            try AVAudioSession.sharedInstance().setCategory(.playback, mode: .spokenAudio)
+            try AVAudioSession.sharedInstance().setActive(true)
+        } catch {
+            // Non-fatal
+        }
+    }
+
+    // MARK: - Lock Screen / Control Center
+
+    private func setupRemoteCommandCenter() {
+        let center = MPRemoteCommandCenter.shared()
+        center.playCommand.addTarget { [weak self] _ in
+            self?.play()
+            return .success
+        }
+        center.pauseCommand.addTarget { [weak self] _ in
+            self?.pause()
+            return .success
+        }
+        center.togglePlayPauseCommand.addTarget { [weak self] _ in
+            self?.togglePlayPause()
+            return .success
+        }
+        center.skipForwardCommand.preferredIntervals = [15]
+        center.skipForwardCommand.addTarget { [weak self] _ in
+            self?.skip(by: 15)
+            return .success
+        }
+        center.skipBackwardCommand.preferredIntervals = [15]
+        center.skipBackwardCommand.addTarget { [weak self] _ in
+            self?.skip(by: -15)
+            return .success
+        }
+        center.changePlaybackPositionCommand.addTarget { [weak self] event in
+            if let e = event as? MPChangePlaybackPositionCommandEvent {
+                self?.seek(to: e.positionTime)
+            }
+            return .success
+        }
+    }
+
+    private func updateNowPlaying() {
+        var info: [String: Any] = [
+            MPMediaItemPropertyTitle: chapterTitle.isEmpty ? "Chapter \(chapter)" : chapterTitle,
+            MPMediaItemPropertyArtist: bookTitle,
+            MPNowPlayingInfoPropertyElapsedPlaybackTime: currentTime,
+            MPMediaItemPropertyPlaybackDuration: duration,
+            MPNowPlayingInfoPropertyPlaybackRate: isPlaying ? speed : 0.0
+        ]
+        // Use cached artwork — downloaded once in prefetchCoverArtwork().
+        if let artwork = cachedCoverArtwork {
+            info[MPMediaItemPropertyArtwork] = artwork
+        }
+        MPNowPlayingInfoCenter.default().nowPlayingInfo = info
+    }
+}
+
+// MARK: - Supporting types
+
+enum AudioPlayerStatus: Equatable {
+    case idle
+    case generating   // covers both "loading" and "generating TTS" phases
+    case ready
+    case error(String)
+
+    static func == (lhs: AudioPlayerStatus, rhs: AudioPlayerStatus) -> Bool {
+        switch (lhs, rhs) {
+        case (.idle, .idle), (.generating, .generating), (.ready, .ready):
+            return true
+        case (.error(let a), .error(let b)):
+            return a == b
+        default:
+            return false
+        }
+    }
+}
+
+enum SleepTimerOption: Equatable {
+    case chapters(Int)  // Stop after N chapters
+    case minutes(Int)   // Stop after N minutes
+}
+
+extension Notification.Name {
+    static let audioDidFinishChapter = Notification.Name("audioDidFinishChapter")
+    static let skipToNextChapter = Notification.Name("skipToNextChapter")
+    static let skipToPrevChapter = Notification.Name("skipToPrevChapter")
+}

ios/LibNovel/LibNovel/Services/AuthStore.swift

@@ -0,0 +1,159 @@
+import Foundation
+import Combine
+
+// MARK: - AuthStore
+// Owns the authenticated user, the HMAC auth token, and user settings.
+// Persists the token to Keychain so the user stays logged in across launches.
+
+@MainActor
+final class AuthStore: ObservableObject {
+    @Published var user: AppUser?
+    @Published var settings: UserSettings = .default
+    @Published var isLoading: Bool = false
+    @Published var error: String?
+
+    var isAuthenticated: Bool { user != nil }
+
+    private let keychainKey = "libnovel_auth_token"
+
+    init() {
+        // Restore token from Keychain and validate it on launch
+        if let token = loadToken() {
+            Task { await validateToken(token) }
+        }
+    }
+
+    // MARK: - Login / Register
+
+    func login(username: String, password: String) async {
+        isLoading = true
+        error = nil
+        do {
+            let response = try await APIClient.shared.login(username: username, password: password)
+            await APIClient.shared.setAuthCookie(response.token)
+            saveToken(response.token)
+            user = response.user
+            await loadSettings()
+        } catch {
+            self.error = error.localizedDescription
+        }
+        isLoading = false
+    }
+
+    func register(username: String, password: String) async {
+        isLoading = true
+        error = nil
+        do {
+            let response = try await APIClient.shared.register(username: username, password: password)
+            await APIClient.shared.setAuthCookie(response.token)
+            saveToken(response.token)
+            user = response.user
+            await loadSettings()
+        } catch {
+            self.error = error.localizedDescription
+        }
+        isLoading = false
+    }
+
+    func logout() async {
+        do {
+            try await APIClient.shared.logout()
+        } catch {
+            // Best-effort; clear local state regardless
+        }
+        clearToken()
+        user = nil
+        settings = .default
+    }
+
+    // MARK: - Settings
+
+    func loadSettings() async {
+        do {
+            settings = try await APIClient.shared.settings()
+        } catch {
+            // Use defaults if settings endpoint fails
+        }
+    }
+
+    func saveSettings(_ updated: UserSettings) async {
+        do {
+            try await APIClient.shared.updateSettings(updated)
+            settings = updated
+        } catch {
+            self.error = error.localizedDescription
+        }
+    }
+
+    // MARK: - Token validation
+
+    /// Re-validates the current session and refreshes `user` + `settings`.
+    /// Call this after any operation that may change the user record (e.g. avatar upload).
+    func validateToken() async {
+        guard let token = loadToken() else { return }
+        await validateToken(token)
+    }
+
+    private func validateToken(_ token: String) async {
+        await APIClient.shared.setAuthCookie(token)
+        // Use /api/auth/me to restore the user record and confirm the token is still valid
+        do {
+            async let me: AppUser = APIClient.shared.fetch("/api/auth/me")
+            async let s: UserSettings = APIClient.shared.settings()
+            var (restoredUser, restoredSettings) = try await (me, s)
+            // /api/auth/me returns the raw MinIO object key for avatar_url, not a presigned URL.
+            // Exchange the key for a fresh presigned GET URL so KFImage can display it.
+            if let key = restoredUser.avatarURL, !key.hasPrefix("http") {
+                if let presignedURL = try? await APIClient.shared.fetchAvatarPresignedURL() {
+                    restoredUser = AppUser(
+                        id: restoredUser.id,
+                        username: restoredUser.username,
+                        role: restoredUser.role,
+                        created: restoredUser.created,
+                        avatarURL: presignedURL
+                    )
+                }
+            }
+            user = restoredUser
+            settings = restoredSettings
+        } catch let e as APIError {
+            if case .httpError(let code, _) = e, code == 401 {
+                clearToken()
+            }
+        } catch {}
+    }
+
+    // MARK: - Keychain helpers
+
+    private func saveToken(_ token: String) {
+        let data = Data(token.utf8)
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: keychainKey,
+            kSecValueData as String: data
+        ]
+        SecItemDelete(query as CFDictionary)
+        SecItemAdd(query as CFDictionary, nil)
+    }
+
+    private func loadToken() -> String? {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: keychainKey,
+            kSecReturnData as String: true,
+            kSecMatchLimit as String: kSecMatchLimitOne
+        ]
+        var item: CFTypeRef?
+        guard SecItemCopyMatching(query as CFDictionary, &item) == errSecSuccess,
+              let data = item as? Data else { return nil }
+        return String(data: data, encoding: .utf8)
+    }
+
+    private func clearToken() {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: keychainKey
+        ]
+        SecItemDelete(query as CFDictionary)
+    }
+}

ios/LibNovel/LibNovel/Services/BookVoicePreferences.swift

@@ -0,0 +1,73 @@
+import Foundation
+
+// MARK: - Book Voice Preferences Service
+// Manages per-book voice overrides with global fallback
+
+@MainActor
+final class BookVoicePreferences: ObservableObject {
+    static let shared = BookVoicePreferences()
+    
+    @Published private(set) var bookVoices: [String: String] = [:]  // slug -> voice
+    
+    private let userDefaults = UserDefaults.standard
+    private let storageKey = "bookVoicePreferences"
+    
+    private init() {
+        loadPreferences()
+    }
+    
+    // MARK: - Public API
+    
+    /// Get the voice for a specific book (returns nil if no override set)
+    func voice(for slug: String) -> String? {
+        return bookVoices[slug]
+    }
+    
+    /// Get the voice for a book with fallback to global user voice
+    func voiceWithFallback(for slug: String, globalVoice: String) -> String {
+        return bookVoices[slug] ?? globalVoice
+    }
+    
+    /// Set a voice override for a specific book
+    func setVoice(_ voice: String, for slug: String) {
+        print("📚 BookVoicePreferences: Setting voice '\(voice)' for book '\(slug)'")
+        bookVoices[slug] = voice
+        savePreferences()
+    }
+    
+    /// Remove voice override for a book (will use global voice)
+    func removeVoice(for slug: String) {
+        print("📚 BookVoicePreferences: Removing voice override for book '\(slug)'")
+        bookVoices.removeValue(forKey: slug)
+        savePreferences()
+    }
+    
+    /// Check if a book has a voice override
+    func hasOverride(for slug: String) -> Bool {
+        return bookVoices[slug] != nil
+    }
+    
+    /// Clear all book voice overrides
+    func clearAll() {
+        print("📚 BookVoicePreferences: Clearing all book voice overrides")
+        bookVoices.removeAll()
+        savePreferences()
+    }
+    
+    // MARK: - Persistence
+    
+    private func loadPreferences() {
+        if let data = userDefaults.data(forKey: storageKey),
+           let decoded = try? JSONDecoder().decode([String: String].self, from: data) {
+            bookVoices = decoded
+            print("📚 BookVoicePreferences: Loaded \(bookVoices.count) book voice overrides")
+        }
+    }
+    
+    private func savePreferences() {
+        if let encoded = try? JSONEncoder().encode(bookVoices) {
+            userDefaults.set(encoded, forKey: storageKey)
+            print("📚 BookVoicePreferences: Saved \(bookVoices.count) book voice overrides")
+        }
+    }
+}

ios/LibNovel/LibNovel/Services/NetworkMonitor.swift

@@ -0,0 +1,54 @@
+import Foundation
+import Network
+
+// MARK: - Network Monitor
+// Monitors network connectivity and provides offline state across the app
+
+@MainActor
+final class NetworkMonitor: ObservableObject {
+    static let shared = NetworkMonitor()
+    
+    @Published var isConnected: Bool = true
+    @Published var connectionType: NWInterface.InterfaceType?
+    
+    private let monitor: NWPathMonitor
+    private let queue = DispatchQueue(label: "NetworkMonitor")
+    
+    init() {
+        monitor = NWPathMonitor()
+        startMonitoring()
+    }
+    
+    private func startMonitoring() {
+        monitor.pathUpdateHandler = { [weak self] path in
+            Task { @MainActor [weak self] in
+                self?.isConnected = path.status == .satisfied
+                self?.connectionType = path.availableInterfaces.first?.type
+                
+                if path.status == .satisfied {
+                    print("🌐 Network: Connected (\(path.availableInterfaces.first?.type.debugDescription ?? "unknown"))")
+                } else {
+                    print("📴 Network: Offline")
+                }
+            }
+        }
+        monitor.start(queue: queue)
+    }
+    
+    deinit {
+        monitor.cancel()
+    }
+}
+
+extension NWInterface.InterfaceType {
+    var debugDescription: String {
+        switch self {
+        case .wifi: return "Wi-Fi"
+        case .cellular: return "Cellular"
+        case .wiredEthernet: return "Ethernet"
+        case .loopback: return "Loopback"
+        case .other: return "Other"
+        @unknown default: return "Unknown"
+        }
+    }
+}

ios/LibNovel/LibNovel/ViewModels/BookDetailViewModel.swift

@@ -0,0 +1,47 @@
+import Foundation
+
+@MainActor
+final class BookDetailViewModel: ObservableObject {
+    let slug: String
+
+    @Published var book: Book?
+    @Published var chapters: [ChapterIndex] = []
+    @Published var saved: Bool = false
+    @Published var lastChapter: Int?
+    @Published var isLoading = false
+    @Published var error: String?
+
+    init(slug: String) {
+        self.slug = slug
+    }
+
+    func load() async {
+        isLoading = true
+        error = nil
+        do {
+            let detail = try await APIClient.shared.bookDetail(slug: slug)
+            book = detail.book
+            chapters = detail.chapters
+            saved = detail.saved
+            lastChapter = detail.lastChapter
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+
+    func toggleSaved() async {
+        do {
+            if saved {
+                try await APIClient.shared.unsaveBook(slug: slug)
+            } else {
+                try await APIClient.shared.saveBook(slug: slug)
+            }
+            saved.toggle()
+        } catch {
+            self.error = error.localizedDescription
+        }
+    }
+}

ios/LibNovel/LibNovel/ViewModels/BrowseViewModel.swift

@@ -0,0 +1,73 @@
+import Foundation
+
+@MainActor
+final class BrowseViewModel: ObservableObject {
+    @Published var novels: [BrowseNovel] = []
+    @Published var sort: String = "popular"
+    @Published var genre: String = "all"
+    @Published var status: String = "all"
+    @Published var searchQuery: String = ""
+    @Published var isLoading = false
+    @Published var hasNext = false
+    @Published var error: String?
+
+    private var currentPage = 1
+    private var isSearchMode = false
+
+    func loadFirstPage() async {
+        currentPage = 1
+        novels = []
+        isSearchMode = false
+        await loadPage(1)
+    }
+
+    func loadNextPage() async {
+        guard hasNext, !isLoading else { return }
+        await loadPage(currentPage + 1)
+    }
+
+    func search() async {
+        guard !searchQuery.isEmpty else { await loadFirstPage(); return }
+        isLoading = true
+        isSearchMode = true
+        novels = []
+        error = nil
+        do {
+            let result = try await APIClient.shared.search(query: searchQuery)
+            novels = result.results
+            hasNext = false
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+
+    func clearSearch() {
+        searchQuery = ""
+        Task { await loadFirstPage() }
+    }
+
+    private func loadPage(_ page: Int) async {
+        isLoading = true
+        error = nil
+        do {
+            let result = try await APIClient.shared.browse(
+                page: page, genre: genre, sort: sort, status: status
+            )
+            if page == 1 {
+                novels = result.novels
+            } else {
+                novels.append(contentsOf: result.novels)
+            }
+            hasNext = result.hasNext
+            currentPage = page
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+}

ios/LibNovel/LibNovel/ViewModels/ChapterReaderViewModel.swift

@@ -0,0 +1,73 @@
+import Foundation
+
+@MainActor
+final class ChapterReaderViewModel: ObservableObject {
+    let slug: String
+    private(set) var chapter: Int
+
+    @Published var content: ChapterResponse?
+    @Published var isLoading = false
+    @Published var error: String?
+
+    init(slug: String, chapter: Int) {
+        self.slug = slug
+        self.chapter = chapter
+    }
+
+    /// Switch to a different chapter in-place: resets state and updates `chapter`
+    /// so that `.task(id: currentChapter)` in the View re-fires `load()`.
+    func switchChapter(to newChapter: Int) {
+        guard newChapter != chapter else { return }
+        chapter = newChapter
+        content = nil
+        error = nil
+    }
+
+    func load() async {
+        isLoading = true
+        error = nil
+        do {
+            content = try await APIClient.shared.chapterContent(slug: slug, chapter: chapter)
+            // Record reading progress
+            try? await APIClient.shared.setProgress(slug: slug, chapter: chapter)
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+
+    func toggleAudio(audioPlayer: AudioPlayerService, settings: UserSettings) {
+        guard let content else { return }
+
+        // Only treat as "current" if the player is active (not idle/stopped).
+        // If the user stopped playback, isActive is false — we must re-load.
+        let isCurrent = audioPlayer.isActive &&
+                        audioPlayer.slug == slug &&
+                        audioPlayer.chapter == chapter
+
+        if isCurrent {
+            audioPlayer.togglePlayPause()
+        } else {
+            let nextChapter: Int? = content.next
+            let prevChapter: Int? = content.prev
+            
+            // Use per-book voice override, fallback to global voice
+            let voice = BookVoicePreferences.shared.voiceWithFallback(for: slug, globalVoice: settings.voice)
+            
+            audioPlayer.load(
+                slug: slug,
+                chapter: chapter,
+                chapterTitle: content.chapter.title,
+                bookTitle: content.book.title,
+                coverURL: content.book.cover,
+                voice: voice,
+                speed: settings.speed,
+                chapters: content.chapters,
+                nextChapter: nextChapter,
+                prevChapter: prevChapter
+            )
+        }
+    }
+}

ios/LibNovel/LibNovel/ViewModels/DiscoverViewModel.swift

@@ -0,0 +1,78 @@
+import Foundation
+
+@MainActor
+final class DiscoverViewModel: ObservableObject {
+    @Published var trending: [BrowseNovel] = []
+    @Published var topRated: [BrowseNovel] = []
+    @Published var recentlyUpdated: [BrowseNovel] = []
+    @Published var newReleases: [BrowseNovel] = []
+    @Published var genreShelves: [GenreShelf] = []
+    @Published var isLoading = false
+    @Published var error: String?
+    
+    struct GenreShelf: Identifiable {
+        let id: String
+        let name: String
+        let genre: String
+        var novels: [BrowseNovel] = []
+    }
+    
+    // Popular genres to show as shelves
+    private let featuredGenres = [
+        ("fantasy", "Fantasy"),
+        ("romance", "Romance"),
+        ("action", "Action"),
+        ("sci-fi", "Sci-Fi"),
+        ("mystery", "Mystery")
+    ]
+    
+    func load() async {
+        guard !isLoading else { return }
+        isLoading = true
+        error = nil
+        
+        async let trendingTask = loadShelf(sort: "popular", limit: 20)
+        async let topRatedTask = loadShelf(sort: "rating", limit: 20)
+        async let recentlyUpdatedTask = loadShelf(sort: "updated", limit: 20)
+        async let newReleasesTask = loadShelf(sort: "new", limit: 20)
+        
+        do {
+            trending = try await trendingTask
+            topRated = try await topRatedTask
+            recentlyUpdated = try await recentlyUpdatedTask
+            newReleases = try await newReleasesTask
+            
+            // Load genre shelves
+            await loadGenreShelves()
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        
+        isLoading = false
+    }
+    
+    private func loadShelf(sort: String, genre: String = "all", status: String = "all", limit: Int = 20) async throws -> [BrowseNovel] {
+        let result = try await APIClient.shared.browse(page: 1, genre: genre, sort: sort, status: status)
+        return Array(result.novels.prefix(limit))
+    }
+    
+    private func loadGenreShelves() async {
+        var shelves: [GenreShelf] = []
+        
+        for (genre, name) in featuredGenres {
+            do {
+                let novels = try await loadShelf(sort: "popular", genre: genre, limit: 15)
+                if !novels.isEmpty {
+                    shelves.append(GenreShelf(id: genre, name: name, genre: genre, novels: novels))
+                }
+            } catch {
+                // Skip failed genres silently
+                continue
+            }
+        }
+        
+        genreShelves = shelves
+    }
+}

ios/LibNovel/LibNovel/ViewModels/HomeViewModel.swift

@@ -0,0 +1,30 @@
+import Foundation
+
+@MainActor
+final class HomeViewModel: ObservableObject {
+    @Published var continueReading: [ContinueReadingItem] = []
+    @Published var recentlyUpdated: [Book] = []
+    @Published var stats: HomeStats?
+    @Published var subscriptionFeed: [SubscriptionFeedItem] = []
+    @Published var isLoading = false
+    @Published var error: String?
+
+    func load() async {
+        isLoading = true
+        error = nil
+        do {
+            let data = try await APIClient.shared.homeData()
+            continueReading = data.continueReading.map {
+                ContinueReadingItem(book: $0.book, chapter: $0.chapter)
+            }
+            recentlyUpdated = data.recentlyUpdated
+            stats = data.stats
+            subscriptionFeed = data.subscriptionFeed
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+}

ios/LibNovel/LibNovel/ViewModels/LibraryViewModel.swift

@@ -0,0 +1,21 @@
+import Foundation
+
+@MainActor
+final class LibraryViewModel: ObservableObject {
+    @Published var items: [LibraryItem] = []
+    @Published var isLoading = false
+    @Published var error: String?
+
+    func load() async {
+        isLoading = true
+        error = nil
+        do {
+            items = try await APIClient.shared.library()
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+}

ios/LibNovel/LibNovel/ViewModels/ProfileViewModel.swift

@@ -0,0 +1,40 @@
+import Foundation
+
+@MainActor
+final class ProfileViewModel: ObservableObject {
+    @Published var sessions: [UserSession] = []
+    @Published var voices: [String] = []
+    @Published var sessionsLoading = false
+    @Published var error: String?
+
+    func loadSessions() async {
+        sessionsLoading = true
+        do {
+            sessions = try await APIClient.shared.sessions()
+        } catch {
+            self.error = error.localizedDescription
+        }
+        sessionsLoading = false
+    }
+
+    func loadVoices() async {
+        guard voices.isEmpty else { return }
+        do {
+            voices = try await APIClient.shared.voices()
+        } catch {
+            // Use hardcoded fallback — same as Go server helpers.go
+            voices = ["af_bella", "af_sky", "af_sarah", "af_nicole",
+                      "am_adam", "am_michael", "bf_emma", "bf_isabella",
+                      "bm_george", "bm_lewis"]
+        }
+    }
+
+    func revokeSession(id: String) async {
+        do {
+            try await APIClient.shared.revokeSession(id: id)
+            sessions.removeAll { $0.id == id }
+        } catch {
+            self.error = error.localizedDescription
+        }
+    }
+}

ios/LibNovel/LibNovel/ViewModels/UserProfileViewModel.swift

@@ -0,0 +1,87 @@
+import Foundation
+
+@MainActor
+final class UserProfileViewModel: ObservableObject {
+    let username: String
+
+    @Published var profile: PublicUserProfile?
+    @Published var currentlyReading: [PublicLibraryItem] = []
+    @Published var library: [PublicLibraryItem] = []
+    @Published var isLoading = false
+    @Published var isTogglingSubscribe = false
+    @Published var error: String?
+
+    init(username: String) {
+        self.username = username
+    }
+
+    func load() async {
+        guard !isLoading else { return }
+        isLoading = true
+        error = nil
+        do {
+            async let profileFetch = APIClient.shared.fetchUserProfile(username: username)
+            async let libraryFetch = APIClient.shared.fetchUserLibrary(username: username)
+            let (p, lib) = try await (profileFetch, libraryFetch)
+            profile = p
+            currentlyReading = lib.currentlyReading
+            library = lib.library
+        } catch let apiError as APIError {
+            switch apiError {
+            case .httpError(404, _): error = "User not found."
+            default: error = apiError.localizedDescription
+            }
+        } catch {
+            if !(error is CancellationError) {
+                self.error = error.localizedDescription
+            }
+        }
+        isLoading = false
+    }
+
+    func toggleSubscribe() async {
+        guard let p = profile, !p.isSelf, !isTogglingSubscribe else { return }
+        isTogglingSubscribe = true
+        defer { isTogglingSubscribe = false }
+        do {
+            if p.isSubscribed {
+                try await APIClient.shared.unsubscribeUser(username: username)
+                profile = PublicUserProfile(
+                    id: p.id, username: p.username, avatarUrl: p.avatarUrl,
+                    created: p.created,
+                    followerCount: max(0, p.followerCount - 1),
+                    followingCount: p.followingCount,
+                    isSubscribed: false, isSelf: p.isSelf
+                )
+            } else {
+                try await APIClient.shared.subscribeUser(username: username)
+                profile = PublicUserProfile(
+                    id: p.id, username: p.username, avatarUrl: p.avatarUrl,
+                    created: p.created,
+                    followerCount: p.followerCount + 1,
+                    followingCount: p.followingCount,
+                    isSubscribed: true, isSelf: p.isSelf
+                )
+            }
+        } catch {
+            self.error = error.localizedDescription
+        }
+    }
+}
+
+// MARK: - Convenience memberwise init for PublicUserProfile (used in optimistic updates)
+
+private extension PublicUserProfile {
+    init(id: String, username: String, avatarUrl: String?, created: String,
+         followerCount: Int, followingCount: Int, isSubscribed: Bool, isSelf: Bool) {
+        // Encode then decode to go through the standard Decodable path without duplicating code
+        var dict: [String: Any] = [
+            "id": id, "username": username, "created": created,
+            "followerCount": followerCount, "followingCount": followingCount,
+            "isSubscribed": isSubscribed, "isSelf": isSelf
+        ]
+        if let url = avatarUrl { dict["avatarUrl"] = url }
+        let data = try! JSONSerialization.data(withJSONObject: dict)
+        self = try! JSONDecoder().decode(PublicUserProfile.self, from: data)
+    }
+}

ios/LibNovel/LibNovel/ViewModels/VoiceSelectionViewModel.swift

@@ -0,0 +1,127 @@
+import Foundation
+import AVFoundation
+
+@MainActor
+class VoiceSelectionViewModel: ObservableObject {
+    @Published var voices: [String] = []
+    @Published var isLoading = false
+    @Published var error: String?
+    @Published var playingVoice: String?
+
+    private var audioPlayer: AVPlayer?
+    // Store the opaque token returned by the block-based addObserver so we can
+    // actually remove it later. removeObserver(self, ...) does nothing when the
+    // block-based API was used — the token is the observer, not `self`.
+    private var endObserverToken: NSObjectProtocol?
+
+    // Voice label formatting (matches web UI logic)
+    func voiceLabel(_ voice: String) -> String {
+        let parts = voice.split(separator: "_")
+        guard parts.count >= 2 else { return voice }
+
+        let prefix = String(parts[0])
+        let name = parts.dropFirst().map { $0.capitalized }.joined(separator: " ")
+
+        var info = ""
+        switch prefix {
+        case "af": info = "US F"
+        case "am": info = "US M"
+        case "bf": info = "UK F"
+        case "bm": info = "UK M"
+        default: info = prefix.uppercased()
+        }
+
+        return "\(name) (\(info))"
+    }
+
+    func voiceId(_ voice: String) -> String { voice }
+
+    // Load available voices from API
+    func loadVoices() async {
+        isLoading = true
+        error = nil
+        defer { isLoading = false }
+
+        do {
+            let fetchedVoices = try await APIClient.shared.voices()
+            voices = fetchedVoices.isEmpty ? fallbackVoices() : fetchedVoices
+        } catch {
+            self.error = "Failed to load voices: \(error.localizedDescription)"
+            voices = fallbackVoices()
+        }
+    }
+
+    // Play voice sample
+    func playSample(_ voice: String) async {
+        if playingVoice == voice {
+            stopSample()
+            return
+        }
+
+        stopSample()
+        playingVoice = voice
+
+        do {
+            let presignedURL = try await APIClient.shared.presignVoiceSample(voice: voice)
+            guard let url = URL(string: presignedURL) else {
+                throw NSError(domain: "VoiceSelection", code: -1,
+                              userInfo: [NSLocalizedDescriptionKey: "Invalid URL"])
+            }
+
+            let playerItem = AVPlayerItem(url: url)
+            audioPlayer = AVPlayer(playerItem: playerItem)
+
+            // Block-based addObserver returns a token — store it so we can remove it.
+            endObserverToken = NotificationCenter.default.addObserver(
+                forName: .AVPlayerItemDidPlayToEndTime,
+                object: playerItem,
+                queue: .main
+            ) { [weak self] _ in
+                Task { @MainActor [weak self] in
+                    self?.stopSample()
+                }
+            }
+
+            audioPlayer?.play()
+        } catch {
+            // Sample might not be generated yet — silently ignore.
+            print("Voice sample not available for \(voice): \(error)")
+            playingVoice = nil
+        }
+    }
+
+    // Stop currently playing sample
+    func stopSample() {
+        audioPlayer?.pause()
+        audioPlayer = nil
+        playingVoice = nil
+        if let token = endObserverToken {
+            NotificationCenter.default.removeObserver(token)
+            endObserverToken = nil
+        }
+    }
+
+    private func fallbackVoices() -> [String] {
+        ["af_bella", "af_sarah", "af_nicole",
+         "am_adam", "am_michael",
+         "bf_emma", "bf_isabella",
+         "bm_george", "bm_lewis",
+         "af_sky"]
+    }
+
+    // deinit: must NOT dispatch a Task capturing self.
+    // A Task strongly retains self, which causes "deallocated with non-zero retain
+    // count 2" → SIGABRT. Instead capture just the two values we need (player and
+    // token) and clean up without touching self at all.
+    nonisolated deinit {
+        // Capture locals — self is going away, do not reference it after this point.
+        // audioPlayer and endObserverToken are actor-isolated, but we can read their
+        // stored value directly in deinit because deinit is the last exclusive owner.
+        // Suppress the "actor-isolated" warning with an unowned reference pattern:
+        // Swift SE-0371 allows nonisolated deinit to access stored properties directly.
+        audioPlayer?.pause()
+        if let token = endObserverToken {
+            NotificationCenter.default.removeObserver(token)
+        }
+    }
+}

ios/LibNovel/LibNovel/Views/Auth/AuthView.swift

@@ -0,0 +1,123 @@
+import SwiftUI
+
+struct AuthView: View {
+    @EnvironmentObject var authStore: AuthStore
+    @State private var mode: Mode = .login
+    @State private var username: String = ""
+    @State private var password: String = ""
+    @State private var confirmPassword: String = ""
+    @FocusState private var focusedField: Field?
+
+    enum Mode { case login, register }
+    enum Field { case username, password, confirmPassword }
+
+    var body: some View {
+        NavigationStack {
+            VStack(spacing: 0) {
+                // Logo / header
+                VStack(spacing: 8) {
+                    Image(systemName: "books.vertical.fill")
+                        .font(.system(size: 56))
+                        .foregroundStyle(.amber)
+                    Text("LibNovel")
+                        .font(.largeTitle.bold())
+                }
+                .padding(.top, 60)
+                .padding(.bottom, 40)
+
+                // Tab switcher
+                Picker("Mode", selection: $mode) {
+                    Text("Sign In").tag(Mode.login)
+                    Text("Create Account").tag(Mode.register)
+                }
+                .pickerStyle(.segmented)
+                .padding(.horizontal, 24)
+                .padding(.bottom, 32)
+
+                // Form
+                VStack(spacing: 16) {
+                    TextField("Username", text: $username)
+                        .textFieldStyle(.roundedBorder)
+                        .textInputAutocapitalization(.never)
+                        .autocorrectionDisabled()
+                        .focused($focusedField, equals: .username)
+                        .submitLabel(.next)
+                        .onSubmit { focusedField = .password }
+
+                    SecureField("Password", text: $password)
+                        .textFieldStyle(.roundedBorder)
+                        .focused($focusedField, equals: .password)
+                        .submitLabel(mode == .register ? .next : .go)
+                        .onSubmit {
+                            if mode == .register { focusedField = .confirmPassword }
+                            else { submit() }
+                        }
+
+                    if mode == .register {
+                        SecureField("Confirm Password", text: $confirmPassword)
+                            .textFieldStyle(.roundedBorder)
+                            .focused($focusedField, equals: .confirmPassword)
+                            .submitLabel(.go)
+                            .onSubmit { submit() }
+                            .transition(.opacity.combined(with: .move(edge: .top)))
+                    }
+                }
+                .padding(.horizontal, 24)
+                .animation(.easeInOut(duration: 0.2), value: mode)
+
+                if let error = authStore.error {
+                    Text(error)
+                        .font(.footnote)
+                        .foregroundStyle(.red)
+                        .multilineTextAlignment(.center)
+                        .padding(.horizontal, 24)
+                        .padding(.top, 8)
+                }
+
+                Button(action: submit) {
+                    Group {
+                        if authStore.isLoading {
+                            ProgressView()
+                                .progressViewStyle(.circular)
+                                .tint(.white)
+                        } else {
+                            Text(mode == .login ? "Sign In" : "Create Account")
+                                .fontWeight(.semibold)
+                        }
+                    }
+                    .frame(maxWidth: .infinity)
+                    .frame(height: 50)
+                }
+                .buttonStyle(.borderedProminent)
+                .tint(.amber)
+                .padding(.horizontal, 24)
+                .padding(.top, 24)
+                .disabled(authStore.isLoading || !formIsValid)
+
+                Spacer()
+            }
+            .toolbar(.hidden, for: .navigationBar)
+        }
+        .onChange(of: mode) { _, _ in
+            authStore.error = nil
+            confirmPassword = ""
+        }
+    }
+
+    private var formIsValid: Bool {
+        let base = !username.isEmpty && password.count >= 4
+        if mode == .register { return base && password == confirmPassword }
+        return base
+    }
+
+    private func submit() {
+        focusedField = nil
+        Task {
+            if mode == .login {
+                await authStore.login(username: username, password: password)
+            } else {
+                await authStore.register(username: username, password: password)
+            }
+        }
+    }
+}

ios/LibNovel/LibNovel/Views/BookDetail/BookDetailView.swift

@@ -0,0 +1,708 @@
+import SwiftUI
+import Kingfisher
+
+struct BookDetailView: View {
+    let slug: String
+    @StateObject private var vm: BookDetailViewModel
+    @EnvironmentObject var authStore: AuthStore
+    @EnvironmentObject var audioPlayer: AudioPlayerService
+    @State private var summaryExpanded = false
+    @State private var showChapters = false
+
+    init(slug: String) {
+        self.slug = slug
+        _vm = StateObject(wrappedValue: BookDetailViewModel(slug: slug))
+    }
+
+    var body: some View {
+        VStack(spacing: 0) {
+            OfflineBanner()
+            
+            ZStack(alignment: .top) {
+                ScrollView {
+                    VStack(alignment: .leading, spacing: 0) {
+                        if vm.isLoading {
+                            ProgressView().frame(maxWidth: .infinity).padding(.top, 120)
+                        } else if let book = vm.book {
+                            heroSection(book: book)
+                            metaSection(book: book)
+                            Divider().padding(.horizontal)
+                            chaptersRow(book: book)
+                            Divider().padding(.horizontal)
+                            CommentsView(slug: slug)
+                        }
+                    }
+                }
+                .ignoresSafeArea(edges: .top)
+            }
+        }
+        .navigationBarTitleDisplayMode(.inline)
+        .appNavigationDestination()
+        .toolbar { bookmarkButton }
+        .task { await vm.load() }
+        .errorAlert($vm.error)
+        .sheet(isPresented: $showChapters) {
+            BookChaptersSheet(
+                slug: slug,
+                chapters: vm.chapters,
+                lastChapter: vm.lastChapter,
+                totalChapters: vm.book?.totalChapters ?? 0
+            )
+        }
+    }
+
+    // MARK: - Hero
+
+    @ViewBuilder
+    private func heroSection(book: Book) -> some View {
+        ZStack(alignment: .bottom) {
+            // Full-bleed blurred background
+            KFImage(URL(string: book.cover))
+                .resizable()
+                .scaledToFill()
+                .frame(maxWidth: .infinity)
+                .frame(height: 320)
+                .blur(radius: 24)
+                .clipped()
+                .overlay(
+                    LinearGradient(
+                        colors: [.black.opacity(0.15), .black.opacity(0.68)],
+                        startPoint: .top,
+                        endPoint: .bottom
+                    )
+                )
+
+            VStack(spacing: 16) {
+                KFImage(URL(string: book.cover))
+                    .resizable()
+                    .placeholder {
+                        RoundedRectangle(cornerRadius: 12)
+                            .fill(Color(.systemGray5))
+                    }
+                    .scaledToFill()
+                    .frame(width: 130, height: 188)
+                    .clipShape(RoundedRectangle(cornerRadius: 12))
+                    .shadow(color: .black.opacity(0.55), radius: 18, x: 0, y: 10)
+                    .shadow(color: .black.opacity(0.3), radius: 6, x: 0, y: 3)
+
+                VStack(spacing: 6) {
+                    Text(book.title)
+                        .font(.title3.bold())
+                        .foregroundStyle(.white)
+                        .multilineTextAlignment(.center)
+                        .lineLimit(3)
+                        .padding(.horizontal, 32)
+
+                    Text(book.author)
+                        .font(.subheadline)
+                        .foregroundStyle(.white.opacity(0.75))
+                }
+
+                if !book.genres.isEmpty {
+                    HStack(spacing: 8) {
+                        ForEach(book.genres.prefix(3), id: \.self) { genre in
+                            TagChip(label: genre).colorScheme(.dark)
+                        }
+                    }
+                }
+
+                if !book.status.isEmpty {
+                    StatusBadge(status: book.status)
+                }
+            }
+            .padding(.horizontal)
+            .padding(.bottom, 28)
+        }
+        .frame(minHeight: 320)
+    }
+
+    // MARK: - Meta section (stats + summary + CTAs)
+
+    @ViewBuilder
+    private func metaSection(book: Book) -> some View {
+        VStack(alignment: .leading, spacing: 0) {
+            // Quick stats row
+            HStack(spacing: 0) {
+                MetaStat(value: "\(book.totalChapters)", label: "Chapters", icon: "doc.text")
+                Divider().frame(height: 36)
+                MetaStat(
+                    value: book.status.capitalized.isEmpty ? "—" : book.status.capitalized,
+                    label: "Status", icon: "flag"
+                )
+                if book.ranking > 0 {
+                    Divider().frame(height: 36)
+                    MetaStat(value: "#\(book.ranking)", label: "Rank", icon: "chart.bar.fill")
+                }
+            }
+            .padding(.vertical, 16)
+            .frame(maxWidth: .infinity)
+
+            Divider().padding(.horizontal)
+
+            // Summary
+            VStack(alignment: .leading, spacing: 8) {
+                Text("About")
+                    .font(.headline)
+
+                Text(book.summary)
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+                    .lineLimit(summaryExpanded ? nil : 4)
+                    .animation(.easeInOut(duration: 0.2), value: summaryExpanded)
+
+                if book.summary.count > 200 {
+                    Button(summaryExpanded ? "Less" : "More") {
+                        withAnimation { summaryExpanded.toggle() }
+                    }
+                    .font(.caption.bold())
+                    .foregroundStyle(.amber)
+                }
+            }
+            .padding(.horizontal)
+            .padding(.vertical, 16)
+
+            Divider().padding(.horizontal)
+
+            // CTA buttons
+            HStack(spacing: 10) {
+                if let last = vm.lastChapter, last > 0 {
+                    NavigationLink(value: NavDestination.chapter(slug, last)) {
+                        Label("Continue Ch.\(last)", systemImage: "play.fill")
+                            .frame(maxWidth: .infinity)
+                            .fontWeight(.semibold)
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .tint(.amber)
+
+                    NavigationLink(value: NavDestination.chapter(slug, 1)) {
+                        Label("From Ch.1", systemImage: "arrow.counterclockwise")
+                            .frame(maxWidth: .infinity)
+                    }
+                    .buttonStyle(.bordered)
+                    .tint(.secondary)
+                } else {
+                    NavigationLink(value: NavDestination.chapter(slug, 1)) {
+                        Label("Start Reading", systemImage: "book.fill")
+                            .frame(maxWidth: .infinity)
+                            .fontWeight(.semibold)
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .tint(.amber)
+                }
+            }
+            .padding(.horizontal)
+            .padding(.vertical, 16)
+        }
+    }
+
+    // MARK: - Compact chapters row (tap → sheet)
+
+    @ViewBuilder
+    private func chaptersRow(book: Book) -> some View {
+        Button {
+            showChapters = true
+        } label: {
+            HStack(spacing: 12) {
+                Image(systemName: "list.number")
+                    .font(.subheadline.weight(.semibold))
+                    .foregroundStyle(.amber)
+                    .frame(width: 28)
+
+                VStack(alignment: .leading, spacing: 2) {
+                    Text("Chapters")
+                        .font(.subheadline.weight(.semibold))
+                        .foregroundStyle(.primary)
+                    if !vm.chapters.isEmpty {
+                        let last = vm.lastChapter
+                        let total = vm.chapters.count
+                        Text(last != nil && last! > 0
+                             ? "Reading Ch.\(last!) of \(total)"
+                             : "\(total) chapter\(total == 1 ? "" : "s")")
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                    } else if vm.isLoading {
+                        Text("Loading…")
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                    }
+                }
+
+                Spacer()
+
+                Image(systemName: "chevron.right")
+                    .font(.caption.weight(.semibold))
+                    .foregroundStyle(.tertiary)
+            }
+            .padding(.horizontal, 16)
+            .padding(.vertical, 14)
+            .contentShape(Rectangle())
+        }
+        .buttonStyle(.plain)
+    }
+
+    // MARK: - Bookmark toolbar
+
+    @ToolbarContentBuilder
+    private var bookmarkButton: some ToolbarContent {
+        ToolbarItem(placement: .topBarTrailing) {
+            Button {
+                Task { await vm.toggleSaved() }
+            } label: {
+                Image(systemName: vm.saved ? "bookmark.fill" : "bookmark")
+                    .foregroundStyle(vm.saved ? .amber : .primary)
+            }
+        }
+    }
+}
+
+// MARK: - Chapters list sheet
+// Apple Books-style: chapters grouped into blocks of 100 with a right-edge jump bar.
+// A .searchable bar filters by number or title; an "offline only" toggle shows downloaded chapters.
+// Per-row download status (arc ring, labels, swipe actions) mirrors ChaptersListSheet in PlayerViews.
+
+struct BookChaptersSheet: View {
+    let slug: String
+    let chapters: [ChapterIndex]
+    let lastChapter: Int?
+    let totalChapters: Int
+
+    @Environment(\.dismiss) private var dismiss
+    @EnvironmentObject var downloadService: AudioDownloadService
+    @EnvironmentObject var audioPlayer: AudioPlayerService
+
+    @State private var searchText: String = ""
+    @State private var filterOfflineOnly = false
+    @State private var showingDownloadAll = false
+    /// The block label the jump bar is currently scrolling to (e.g. "1–100").
+    @State private var activeBlock: String? = nil
+
+    // MARK: Derived data
+
+    private var downloadedCount: Int {
+        chapters.filter { ch in
+            downloadService.isDownloaded(slug: slug, chapter: ch.number, voice: defaultVoice)
+        }.count
+    }
+
+    private var downloadingCount: Int {
+        downloadService.downloads.filter { key, _ in
+            key.hasPrefix("\(slug)::")
+        }.count
+    }
+
+    private var defaultVoice: String {
+        BookVoicePreferences.shared.voiceWithFallback(for: slug, globalVoice: audioPlayer.voice)
+    }
+
+    private var filtered: [ChapterIndex] {
+        var result = chapters
+
+        if filterOfflineOnly {
+            result = result.filter { ch in
+                downloadService.isDownloaded(slug: slug, chapter: ch.number, voice: defaultVoice)
+            }
+        }
+
+        if !searchText.isEmpty {
+            let q = searchText.lowercased()
+            result = result.filter {
+                "\($0.number)".contains(q) ||
+                $0.title.lowercased().contains(q) ||
+                "chapter \($0.number)".contains(q)
+            }
+        }
+
+        return result
+    }
+
+    /// Chapters grouped into blocks of 100 with range labels "1–100", "101–200", etc.
+    /// When searching or filtering the jump bar is hidden and a flat "Results" group is used.
+    private var groups: [(label: String, chapters: [ChapterIndex])] {
+        guard searchText.isEmpty && !filterOfflineOnly else {
+            return filtered.isEmpty ? [] : [("Results", filtered)]
+        }
+        guard !filtered.isEmpty else { return [] }
+        let blockSize = 100
+        let minN = filtered.map(\.number).min() ?? 1
+        let maxN = filtered.map(\.number).max() ?? 1
+        let firstBlock = ((minN - 1) / blockSize) * blockSize + 1
+        var result: [(label: String, chapters: [ChapterIndex])] = []
+        var blockStart = firstBlock
+        while blockStart <= maxN {
+            let blockEnd = blockStart + blockSize - 1
+            let slice = filtered.filter { $0.number >= blockStart && $0.number <= blockEnd }
+            if !slice.isEmpty {
+                result.append(("\(blockStart)–\(blockEnd)", slice))
+            }
+            blockStart += blockSize
+        }
+        return result
+    }
+
+    private var jumpLabels: [String] { groups.map(\.label) }
+
+    // MARK: Body
+
+    var body: some View {
+        NavigationStack {
+            ZStack(alignment: .trailing) {
+                // ── Main chapter list ──────────────────────────────────────
+                List {
+                    // Offline downloads summary (shown when at least one chapter is downloaded)
+                    if downloadedCount > 0 || downloadingCount > 0 {
+                        Section {
+                            VStack(alignment: .leading, spacing: 12) {
+                                HStack {
+                                    VStack(alignment: .leading, spacing: 4) {
+                                        Text("Offline Downloads")
+                                            .font(.headline)
+                                        Text("\(downloadedCount) of \(chapters.count) chapters")
+                                            .font(.subheadline)
+                                            .foregroundStyle(.secondary)
+                                    }
+
+                                    Spacer()
+
+                                    Button {
+                                        showingDownloadAll = true
+                                    } label: {
+                                        Label("Manage", systemImage: "arrow.down.circle")
+                                            .font(.subheadline.weight(.semibold))
+                                    }
+                                    .buttonStyle(.bordered)
+                                    .tint(.blue)
+                                }
+
+                                if downloadingCount > 0 {
+                                    HStack(spacing: 8) {
+                                        ProgressView()
+                                            .scaleEffect(0.8)
+                                        Text("Downloading \(downloadingCount) \(downloadingCount == 1 ? "chapter" : "chapters")")
+                                            .font(.caption)
+                                            .foregroundStyle(.secondary)
+                                    }
+                                }
+
+                                Toggle("Show offline only", isOn: $filterOfflineOnly)
+                                    .font(.subheadline)
+                                    .tint(.amber)
+                            }
+                            .padding(.vertical, 8)
+                        }
+                    }
+
+                    ForEach(groups, id: \.label) { group in
+                        Section {
+                            ForEach(group.chapters, id: \.number) { ch in
+                                BookChapterRow(
+                                    chapter: ch,
+                                    slug: slug,
+                                    isCurrent: ch.number == lastChapter,
+                                    voice: defaultVoice
+                                )
+                                .id(group.label)
+                            }
+                        } header: {
+                            if searchText.isEmpty && !filterOfflineOnly {
+                                Text(group.label)
+                                    .font(.caption.bold())
+                                    .foregroundStyle(.secondary)
+                                    .id("header_\(group.label)")
+                            }
+                        }
+                    }
+
+                    if chapters.isEmpty {
+                        Section {
+                            ProgressView()
+                                .frame(maxWidth: .infinity)
+                                .padding(.vertical, 24)
+                                .listRowBackground(Color.clear)
+                        }
+                    }
+                }
+                .listStyle(.plain)
+                .searchable(
+                    text: $searchText,
+                    placement: .navigationBarDrawer(displayMode: .always),
+                    prompt: "Chapter number or title"
+                )
+                .scrollPosition(id: $activeBlock, anchor: .top)
+                .appNavigationDestination()
+
+                // ── Right-edge jump bar ────────────────────────────────────
+                if searchText.isEmpty && !filterOfflineOnly && jumpLabels.count > 1 {
+                    BookChaptersJumpBar(
+                        labels: jumpLabels,
+                        currentChapter: lastChapter ?? 0,
+                        groups: groups
+                    ) { label in
+                        withAnimation { activeBlock = label }
+                    }
+                    .padding(.trailing, 4)
+                }
+            }
+            .navigationTitle("Chapters (\(filtered.count))")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Done") { dismiss() }
+                        .fontWeight(.semibold)
+                }
+            }
+            // Sheet to manage bulk downloads for this book
+            .sheet(isPresented: $showingDownloadAll) {
+                DownloadManagementSheet(
+                    chapters: chapters.map { ChapterIndexBrief(number: $0.number, title: $0.title) },
+                    slug: slug,
+                    voice: Binding(
+                        get: { defaultVoice },
+                        set: { _ in }  // voice changes handled inside DownloadManagementSheet
+                    )
+                )
+                .presentationDetents([.medium, .large])
+                .presentationDragIndicator(.visible)
+            }
+            // Scroll to the current chapter's block on first appear
+            .onAppear {
+                if let block = groups.first(where: { g in
+                    g.chapters.contains(where: { $0.number == (lastChapter ?? 0) })
+                }) {
+                    activeBlock = block.label
+                }
+            }
+        }
+        .presentationDetents([.large])
+        .presentationDragIndicator(.visible)
+    }
+}
+
+// MARK: - Individual chapter row with download status + NavigationLink
+
+private struct BookChapterRow: View {
+    let chapter: ChapterIndex
+    let slug: String
+    let isCurrent: Bool
+    let voice: String
+
+    @EnvironmentObject var downloadService: AudioDownloadService
+
+    private var isDownloaded: Bool {
+        downloadService.isDownloaded(slug: slug, chapter: chapter.number, voice: voice)
+    }
+
+    private var downloadProgress: DownloadProgress? {
+        let key = downloadService.makeKey(slug: slug, chapter: chapter.number, voice: voice)
+        return downloadService.downloads[key]
+    }
+
+    private var isDownloading: Bool { downloadProgress != nil }
+
+    private var displayTitle: String {
+        let stripped = chapter.title.strippingTrailingDate()
+        if stripped.isEmpty || stripped == "Chapter \(chapter.number)" {
+            return "Chapter \(chapter.number)"
+        }
+        return stripped
+    }
+
+    var body: some View {
+        NavigationLink(value: NavDestination.chapter(slug, chapter.number)) {
+            HStack(spacing: 14) {
+                // Number badge with optional download-progress arc ring
+                ZStack {
+                    Circle()
+                        .fill(isCurrent ? Color.amber : Color(.systemGray5))
+                        .frame(width: 40, height: 40)
+
+                    Text("\(chapter.number)")
+                        .font(.caption.bold().monospacedDigit())
+                        .foregroundStyle(isCurrent ? .white : .secondary)
+                        .minimumScaleFactor(0.6)
+                        .frame(width: 40, height: 40)
+
+                    // In-progress download arc
+                    if isDownloading, let progress = downloadProgress {
+                        Circle()
+                            .trim(from: 0, to: progress.progress)
+                            .stroke(Color.blue, style: StrokeStyle(lineWidth: 2, lineCap: .round))
+                            .rotationEffect(.degrees(-90))
+                            .frame(width: 44, height: 44)
+                            .animation(.easeInOut(duration: 0.3), value: progress.progress)
+                    }
+                }
+
+                // Title + status subtitle
+                VStack(alignment: .leading, spacing: 3) {
+                    Text(displayTitle)
+                        .font(.subheadline.weight(isCurrent ? .semibold : .regular))
+                        .foregroundStyle(isCurrent ? .amber : .primary)
+                        .lineLimit(1)
+
+                    HStack(spacing: 8) {
+                        if isCurrent {
+                            Label("Reading", systemImage: "bookmark.fill")
+                                .font(.caption2)
+                                .foregroundStyle(.amber)
+                        }
+
+                        if isDownloading, let progress = downloadProgress {
+                            Label("\(Int(progress.progress * 100))%", systemImage: "arrow.down.circle")
+                                .font(.caption2)
+                                .foregroundStyle(.blue)
+                        } else if isDownloaded {
+                            Label("Downloaded", systemImage: "checkmark.circle.fill")
+                                .font(.caption2)
+                                .foregroundStyle(.green)
+                        } else if !chapter.dateLabel.isEmpty {
+                            Text(chapter.dateLabel)
+                                .font(.caption2)
+                                .foregroundStyle(.tertiary)
+                        }
+                    }
+                }
+
+                Spacer(minLength: 4)
+            }
+            .padding(.vertical, 6)
+            .contentShape(Rectangle())
+        }
+        .listRowBackground(isCurrent ? Color.amber.opacity(0.08) : Color.clear)
+        // Trailing swipe: Download / Cancel / Delete
+        .swipeActions(edge: .trailing, allowsFullSwipe: false) {
+            if isDownloaded {
+                Button(role: .destructive) {
+                    Task {
+                        try? downloadService.deleteDownload(
+                            slug: slug, chapter: chapter.number, voice: voice
+                        )
+                    }
+                } label: {
+                    Label("Delete", systemImage: "trash")
+                }
+            } else if isDownloading {
+                Button(role: .destructive) {
+                    downloadService.cancelDownload(
+                        slug: slug, chapter: chapter.number, voice: voice
+                    )
+                } label: {
+                    Label("Cancel", systemImage: "xmark")
+                }
+            } else {
+                Button {
+                    Task {
+                        try? await downloadService.download(
+                            slug: slug, chapter: chapter.number, voice: voice
+                        )
+                    }
+                } label: {
+                    Label("Download", systemImage: "arrow.down.circle")
+                }
+                .tint(.blue)
+            }
+        }
+    }
+}
+
+// MARK: - Right-edge jump bar for BookChaptersSheet
+// Mirrors the JumpBar in PlayerViews.swift but operates on ChapterIndex groups.
+
+private struct BookChaptersJumpBar: View {
+    let labels: [String]
+    let currentChapter: Int
+    let groups: [(label: String, chapters: [ChapterIndex])]
+    let onSelect: (String) -> Void
+
+    @State private var isDragging = false
+
+    private func shortLabel(_ full: String) -> String {
+        full.components(separatedBy: "–").first ?? full
+    }
+
+    private var currentBlock: String? {
+        groups.first(where: { g in g.chapters.contains(where: { $0.number == currentChapter }) })?.label
+    }
+
+    var body: some View {
+        VStack(spacing: 0) {
+            ForEach(labels, id: \.self) { label in
+                let isCurrent = label == currentBlock
+                Text(shortLabel(label))
+                    .font(.system(size: 10, weight: isCurrent ? .bold : .regular))
+                    .foregroundStyle(isCurrent ? Color.amber : Color.secondary)
+                    .frame(width: 28, height: 28)
+                    .contentShape(Rectangle())
+                    .onTapGesture { onSelect(label) }
+            }
+        }
+        .padding(.vertical, 6)
+        .background(
+            Capsule()
+                .fill(.ultraThinMaterial)
+                .shadow(color: .black.opacity(0.15), radius: 4)
+        )
+        .gesture(
+            DragGesture(minimumDistance: 0, coordinateSpace: .local)
+                .onChanged { value in
+                    isDragging = true
+                    let itemHeight: CGFloat = 28
+                    let index = Int(value.location.y / itemHeight)
+                    let clamped = max(0, min(labels.count - 1, index))
+                    onSelect(labels[clamped])
+                }
+                .onEnded { _ in isDragging = false }
+        )
+        .animation(.easeInOut(duration: 0.15), value: isDragging)
+    }
+}
+
+// MARK: - Supporting components
+
+private struct MetaStat: View {
+    let value: String
+    let label: String
+    let icon: String
+
+    var body: some View {
+        VStack(spacing: 4) {
+            Image(systemName: icon)
+                .font(.caption)
+                .foregroundStyle(.amber)
+            Text(value)
+                .font(.subheadline.bold())
+                .lineLimit(1)
+                .minimumScaleFactor(0.7)
+            Text(label)
+                .font(.caption2)
+                .foregroundStyle(.secondary)
+        }
+        .frame(maxWidth: .infinity)
+    }
+}
+
+private struct StatusBadge: View {
+    let status: String
+
+    private var color: Color {
+        switch status.lowercased() {
+        case "ongoing", "active": return .green
+        case "completed": return .blue
+        case "hiatus": return .orange
+        default: return .secondary
+        }
+    }
+
+    var body: some View {
+        HStack(spacing: 4) {
+            Circle()
+                .fill(color)
+                .frame(width: 6, height: 6)
+            Text(status.capitalized)
+                .font(.caption.weight(.medium))
+                .foregroundStyle(color)
+        }
+        .padding(.horizontal, 10)
+        .padding(.vertical, 4)
+        .background(color.opacity(0.12), in: Capsule())
+    }
+}

ios/LibNovel/LibNovel/Views/BookDetail/CommentsView.swift

@@ -0,0 +1,643 @@
+import SwiftUI
+
+// MARK: - ViewModel
+
+@MainActor
+class CommentsViewModel: ObservableObject {
+    let slug: String
+
+    @Published var comments: [BookComment] = []
+    @Published var myVotes: [String: String] = [:]   // commentId → "up" | "down"
+    @Published var avatarUrls: [String: String] = [:] // userId → presigned URL
+    @Published var isLoading = true
+    @Published var error: String?
+
+    @Published var newBody = ""
+    @Published var isPosting = false
+    @Published var postError: String?
+
+    @Published var sort: CommentSortOrder = .top
+
+    // Reply state
+    @Published var replyingToId: String? = nil
+    @Published var replyBody = ""
+    @Published var isPostingReply = false
+    @Published var replyError: String?
+
+    private var votingIds: Set<String> = []
+    private var deletingIds: Set<String> = []
+
+    init(slug: String) {
+        self.slug = slug
+    }
+
+    func load() async {
+        isLoading = true
+        error = nil
+        do {
+            let response = try await APIClient.shared.fetchComments(slug: slug, sort: sort.rawValue)
+            comments = response.comments
+            myVotes = response.myVotes
+            avatarUrls = response.avatarUrls
+        } catch {
+            self.error = error.localizedDescription
+        }
+        isLoading = false
+    }
+
+    func postComment() async {
+        let text = newBody.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !text.isEmpty, !isPosting else { return }
+        if text.count > 2000 {
+            postError = "Comment too long (max 2000 characters)."
+            return
+        }
+        isPosting = true
+        postError = nil
+        do {
+            var created = try await APIClient.shared.postComment(slug: slug, body: text)
+            created.replies = []
+            comments.insert(created, at: 0)
+            newBody = ""
+        } catch let apiError as APIError {
+            switch apiError {
+            case .httpError(401, _): postError = "You must be logged in to comment."
+            default: postError = apiError.localizedDescription
+            }
+        } catch {
+            postError = error.localizedDescription
+        }
+        isPosting = false
+    }
+
+    func postReply(parentId: String) async {
+        let text = replyBody.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !text.isEmpty, !isPostingReply else { return }
+        if text.count > 2000 {
+            replyError = "Reply too long (max 2000 characters)."
+            return
+        }
+        isPostingReply = true
+        replyError = nil
+        do {
+            let created = try await APIClient.shared.postComment(slug: slug, body: text, parentId: parentId)
+            if let idx = comments.firstIndex(where: { $0.id == parentId }) {
+                var parent = comments[idx]
+                var replies = parent.replies ?? []
+                replies.append(created)
+                parent.replies = replies
+                comments[idx] = parent
+            }
+            replyBody = ""
+            replyingToId = nil
+        } catch let apiError as APIError {
+            switch apiError {
+            case .httpError(401, _): replyError = "You must be logged in to reply."
+            default: replyError = apiError.localizedDescription
+            }
+        } catch {
+            replyError = error.localizedDescription
+        }
+        isPostingReply = false
+    }
+
+    func deleteComment(commentId: String, parentId: String? = nil) async {
+        guard !deletingIds.contains(commentId) else { return }
+        deletingIds.insert(commentId)
+
+        // Optimistic removal — update the UI immediately before the network call
+        var removedComment: BookComment?
+        var removedAtIndex: Int?
+        if let parentId {
+            if let idx = comments.firstIndex(where: { $0.id == parentId }) {
+                var parent = comments[idx]
+                removedComment = parent.replies?.first(where: { $0.id == commentId })
+                removedAtIndex = idx
+                parent.replies = (parent.replies ?? []).filter { $0.id != commentId }
+                comments[idx] = parent
+            }
+        } else {
+            removedAtIndex = comments.firstIndex(where: { $0.id == commentId })
+            removedComment = removedAtIndex.map { comments[$0] }
+            comments.removeAll { $0.id == commentId }
+        }
+
+        do {
+            try await APIClient.shared.deleteComment(commentId: commentId)
+        } catch {
+            // Revert the optimistic removal on failure
+            if let removed = removedComment {
+                if let parentId, let idx = removedAtIndex {
+                    var parent = comments[idx]
+                    var replies = parent.replies ?? []
+                    replies.append(removed)
+                    replies.sort { $0.created < $1.created }
+                    parent.replies = replies
+                    comments[idx] = parent
+                } else if let idx = removedAtIndex {
+                    comments.insert(removed, at: min(idx, comments.count))
+                }
+            }
+        }
+
+        deletingIds.remove(commentId)
+    }
+
+    func vote(commentId: String, vote: String, parentId: String? = nil) async {
+        guard !votingIds.contains(commentId) else { return }
+        votingIds.insert(commentId)
+        defer { votingIds.remove(commentId) }
+        do {
+            let updated = try await APIClient.shared.voteComment(commentId: commentId, vote: vote)
+            if let parentId {
+                if let idx = comments.firstIndex(where: { $0.id == parentId }) {
+                    var parent = comments[idx]
+                    if let rIdx = parent.replies?.firstIndex(where: { $0.id == commentId }) {
+                        parent.replies![rIdx] = updated
+                    }
+                    comments[idx] = parent
+                }
+            } else {
+                if let idx = comments.firstIndex(where: { $0.id == commentId }) {
+                    var c = updated
+                    c.replies = comments[idx].replies
+                    comments[idx] = c
+                }
+            }
+            let prev = myVotes[commentId]
+            if prev == vote {
+                myVotes.removeValue(forKey: commentId)
+            } else {
+                myVotes[commentId] = vote
+            }
+        } catch {
+            // Silently ignore vote errors
+        }
+    }
+
+    func isVoting(_ commentId: String) -> Bool { votingIds.contains(commentId) }
+    func isDeleting(_ commentId: String) -> Bool { deletingIds.contains(commentId) }
+
+    func setSort(_ newSort: CommentSortOrder) {
+        guard newSort != sort else { return }
+        sort = newSort
+        Task { await load() }
+    }
+}
+
+enum CommentSortOrder: String, CaseIterable {
+    case top = "top"
+    case new = "new"
+
+    var label: String {
+        switch self {
+        case .top: return "Top"
+        case .new: return "New"
+        }
+    }
+}
+
+// MARK: - CommentsView
+
+struct CommentsView: View {
+    @StateObject private var vm: CommentsViewModel
+    @EnvironmentObject private var authStore: AuthStore
+
+    init(slug: String) {
+        _vm = StateObject(wrappedValue: CommentsViewModel(slug: slug))
+    }
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            // Section header + sort picker
+            HStack {
+                Text("Comments")
+                    .font(.headline)
+                let total = vm.comments.reduce(0) { $0 + 1 + ($1.replies?.count ?? 0) }
+                if !vm.isLoading && total > 0 {
+                    Text("(\(total))")
+                        .font(.subheadline)
+                        .foregroundStyle(.secondary)
+                }
+                Spacer()
+                // Sort picker
+                if !vm.isLoading && !vm.comments.isEmpty {
+                    Picker("Sort", selection: Binding(
+                        get: { vm.sort },
+                        set: { vm.setSort($0) }
+                    )) {
+                        ForEach(CommentSortOrder.allCases, id: \.self) { s in
+                            Text(s.label).tag(s)
+                        }
+                    }
+                    .pickerStyle(.segmented)
+                    .frame(width: 120)
+                }
+            }
+            .padding(.horizontal)
+            .padding(.vertical, 14)
+
+            Divider().padding(.horizontal)
+
+            // Post form
+            postForm
+                .padding(.horizontal)
+                .padding(.vertical, 12)
+
+            Divider().padding(.horizontal)
+
+            // Comment list
+            if vm.isLoading {
+                loadingPlaceholder
+            } else if let err = vm.error {
+                Text(err)
+                    .font(.subheadline)
+                    .foregroundStyle(.red)
+                    .padding()
+            } else if vm.comments.isEmpty {
+                Text("No comments yet. Be the first!")
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+                    .padding()
+            } else {
+                ForEach(vm.comments) { comment in
+                    commentThread(comment: comment)
+                    Divider().padding(.leading, 16)
+                }
+            }
+
+            Color.clear.frame(height: 16)
+        }
+        .task { await vm.load() }
+    }
+
+    // MARK: - Comment thread (top-level + replies)
+
+    @ViewBuilder
+    private func commentThread(comment: BookComment) -> some View {
+        VStack(alignment: .leading, spacing: 0) {
+            CommentRow(
+                comment: comment,
+                myVote: vm.myVotes[comment.id],
+                isVoting: vm.isVoting(comment.id),
+                isDeleting: vm.isDeleting(comment.id),
+                isOwner: authStore.user?.id == comment.userId,
+                isLoggedIn: authStore.isAuthenticated,
+                isReplyingTo: vm.replyingToId == comment.id,
+                avatarUrl: vm.avatarUrls[comment.userId],
+                onVote: { v in Task { await vm.vote(commentId: comment.id, vote: v) } },
+                onDelete: { Task { await vm.deleteComment(commentId: comment.id) } },
+                onReply: {
+                    if vm.replyingToId == comment.id {
+                        vm.replyingToId = nil
+                        vm.replyBody = ""
+                        vm.replyError = nil
+                    } else {
+                        vm.replyingToId = comment.id
+                        vm.replyBody = ""
+                        vm.replyError = nil
+                    }
+                }
+            )
+
+            // Inline reply form
+            if vm.replyingToId == comment.id {
+                replyForm(parentId: comment.id)
+                    .padding(.leading, 32)
+                    .padding(.trailing, 16)
+                    .padding(.bottom, 8)
+            }
+
+            // Replies
+            if let replies = comment.replies, !replies.isEmpty {
+                VStack(alignment: .leading, spacing: 0) {
+                    ForEach(replies) { reply in
+                        CommentRow(
+                            comment: reply,
+                            myVote: vm.myVotes[reply.id],
+                            isVoting: vm.isVoting(reply.id),
+                            isDeleting: vm.isDeleting(reply.id),
+                            isOwner: authStore.user?.id == reply.userId,
+                            isLoggedIn: authStore.isAuthenticated,
+                            isReplyingTo: false,
+                            isReply: true,
+                            avatarUrl: vm.avatarUrls[reply.userId],
+                            onVote: { v in Task { await vm.vote(commentId: reply.id, vote: v, parentId: comment.id) } },
+                            onDelete: { Task { await vm.deleteComment(commentId: reply.id, parentId: comment.id) } },
+                            onReply: nil
+                        )
+                        if reply.id != replies.last?.id {
+                            Divider().padding(.leading, 48)
+                        }
+                    }
+                }
+                .padding(.leading, 24)
+                .overlay(alignment: .leading) {
+                    Rectangle()
+                        .fill(Color(.systemGray4))
+                        .frame(width: 2)
+                        .padding(.leading, 16)
+                        .padding(.vertical, 4)
+                }
+            }
+        }
+    }
+
+    // MARK: - Reply form
+
+    @ViewBuilder
+    private func replyForm(parentId: String) -> some View {
+        VStack(alignment: .leading, spacing: 6) {
+            ZStack(alignment: .topLeading) {
+                if vm.replyBody.isEmpty {
+                    Text("Write a reply…")
+                        .font(.caption)
+                        .foregroundStyle(.tertiary)
+                        .padding(.top, 6)
+                        .padding(.leading, 4)
+                }
+                TextEditor(text: $vm.replyBody)
+                    .font(.caption)
+                    .frame(minHeight: 56, maxHeight: 120)
+                    .scrollContentBackground(.hidden)
+            }
+            .padding(8)
+            .background(Color(.systemGray6), in: RoundedRectangle(cornerRadius: 8))
+
+            HStack {
+                let count = vm.replyBody.count
+                Text("\(count)/2000")
+                    .font(.caption2)
+                    .monospacedDigit()
+                    .foregroundStyle(count > 2000 ? Color.red : Color.secondary)
+
+                Spacer()
+
+                if let err = vm.replyError {
+                    Text(err).font(.caption2).foregroundStyle(.red).lineLimit(1)
+                }
+
+                Button("Cancel") {
+                    vm.replyingToId = nil
+                    vm.replyBody = ""
+                    vm.replyError = nil
+                }
+                .font(.caption)
+                .foregroundStyle(.secondary)
+
+                Button {
+                    Task { await vm.postReply(parentId: parentId) }
+                } label: {
+                    if vm.isPostingReply {
+                        ProgressView().controlSize(.mini)
+                    } else {
+                        Text("Reply").fontWeight(.semibold).font(.caption)
+                    }
+                }
+                .buttonStyle(.borderedProminent)
+                .tint(.amber)
+                .controlSize(.mini)
+                .disabled(vm.isPostingReply || vm.replyBody.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty || vm.replyBody.count > 2000)
+            }
+        }
+    }
+
+    // MARK: - Post form
+
+    @ViewBuilder
+    private var postForm: some View {
+        if authStore.isAuthenticated {
+            VStack(alignment: .leading, spacing: 8) {
+                ZStack(alignment: .topLeading) {
+                    if vm.newBody.isEmpty {
+                        Text("Write a comment…")
+                            .font(.subheadline)
+                            .foregroundStyle(.tertiary)
+                            .padding(.top, 8)
+                            .padding(.leading, 4)
+                    }
+                    TextEditor(text: $vm.newBody)
+                        .font(.subheadline)
+                        .frame(minHeight: 72, maxHeight: 160)
+                        .scrollContentBackground(.hidden)
+                }
+                .padding(10)
+                .background(Color(.systemGray6), in: RoundedRectangle(cornerRadius: 10))
+
+                HStack {
+                    let count = vm.newBody.count
+                    Text("\(count)/2000")
+                        .font(.caption2)
+                        .monospacedDigit()
+                    .foregroundStyle(count > 2000 ? Color.red : Color.secondary)
+
+                Spacer()
+
+                if let err = vm.postError {
+                        Text(err)
+                            .font(.caption2)
+                            .foregroundStyle(.red)
+                            .lineLimit(1)
+                    }
+
+                    Button {
+                        Task { await vm.postComment() }
+                    } label: {
+                        if vm.isPosting {
+                            ProgressView().controlSize(.small)
+                        } else {
+                            Text("Post")
+                                .fontWeight(.semibold)
+                        }
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .tint(.amber)
+                    .controlSize(.small)
+                    .disabled(vm.isPosting || vm.newBody.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty || vm.newBody.count > 2000)
+                }
+            }
+        } else {
+            Text("Log in to leave a comment.")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    // MARK: - Loading skeleton
+
+    @ViewBuilder
+    private var loadingPlaceholder: some View {
+        VStack(spacing: 12) {
+            ForEach(0..<3, id: \.self) { _ in
+                VStack(alignment: .leading, spacing: 8) {
+                    RoundedRectangle(cornerRadius: 4)
+                        .fill(Color(.systemGray5))
+                        .frame(width: 100, height: 12)
+                    RoundedRectangle(cornerRadius: 4)
+                        .fill(Color(.systemGray6))
+                        .frame(maxWidth: .infinity)
+                        .frame(height: 12)
+                    RoundedRectangle(cornerRadius: 4)
+                        .fill(Color(.systemGray6))
+                        .frame(width: 200, height: 12)
+                }
+                .padding(.horizontal)
+                .redacted(reason: .placeholder)
+            }
+        }
+        .padding(.vertical, 12)
+    }
+}
+
+// MARK: - CommentRow
+
+private struct CommentRow: View {
+    let comment: BookComment
+    let myVote: String?
+    let isVoting: Bool
+    let isDeleting: Bool
+    let isOwner: Bool
+    let isLoggedIn: Bool
+    let isReplyingTo: Bool
+    var isReply: Bool = false
+    var avatarUrl: String? = nil
+    let onVote: (String) -> Void
+    let onDelete: () -> Void
+    let onReply: (() -> Void)?
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 6) {
+            // Avatar + Username + date
+            HStack(spacing: 8) {
+                avatarView
+                NavigationLink(value: NavDestination.userProfile(comment.username.isEmpty ? "" : comment.username)) {
+                    Text(comment.username.isEmpty ? "Anonymous" : comment.username)
+                        .font(isReply ? .caption.weight(.medium) : .subheadline.weight(.medium))
+                        .foregroundStyle(.primary)
+                }
+                .buttonStyle(.plain)
+                .disabled(comment.username.isEmpty)
+                Text("·")
+                    .foregroundStyle(.tertiary)
+                Text(formattedDate(comment.created))
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+                Spacer()
+            }
+
+            // Body
+            Text(comment.body)
+                .font(isReply ? .caption : .subheadline)
+                .foregroundStyle(.primary)
+                .fixedSize(horizontal: false, vertical: true)
+
+            // Actions
+            HStack(spacing: 14) {
+                // Upvote
+                Button { onVote("up") } label: {
+                    HStack(spacing: 4) {
+                        Image(systemName: myVote == "up" ? "hand.thumbsup.fill" : "hand.thumbsup")
+                            .font(.caption)
+                        Text("\(comment.upvotes)")
+                            .font(.caption.monospacedDigit())
+                    }
+                    .foregroundStyle(myVote == "up" ? Color.amber : .secondary)
+                }
+                .disabled(isVoting)
+
+                // Downvote
+                Button { onVote("down") } label: {
+                    HStack(spacing: 4) {
+                        Image(systemName: myVote == "down" ? "hand.thumbsdown.fill" : "hand.thumbsdown")
+                            .font(.caption)
+                        Text("\(comment.downvotes)")
+                            .font(.caption.monospacedDigit())
+                    }
+                    .foregroundStyle(myVote == "down" ? .red : .secondary)
+                }
+                .disabled(isVoting)
+
+                // Reply button (top-level only, logged in)
+                if let onReply, isLoggedIn {
+                    Button { onReply() } label: {
+                        HStack(spacing: 3) {
+                            Image(systemName: "arrowshape.turn.up.left")
+                                .font(.caption)
+                            Text("Reply")
+                                .font(.caption)
+                        }
+                        .foregroundStyle(isReplyingTo ? Color.amber : .secondary)
+                    }
+                }
+
+                Spacer()
+
+                // Delete (owner only)
+                if isOwner {
+                    Button(role: .destructive) { onDelete() } label: {
+                        Image(systemName: "trash")
+                            .font(.caption)
+                    }
+                    .disabled(isDeleting)
+                }
+            }
+        }
+        .padding(.horizontal, 16)
+        .padding(.vertical, 12)
+        .opacity(isDeleting ? 0.5 : 1)
+        .animation(.easeInOut(duration: 0.15), value: isDeleting)
+    }
+
+    private var avatarSize: CGFloat { isReply ? 20 : 24 }
+
+    @ViewBuilder
+    private var avatarView: some View {
+        if let url = avatarUrl, let imageUrl = URL(string: url) {
+            AsyncImage(url: imageUrl) { phase in
+                switch phase {
+                case .success(let image):
+                    image.resizable().scaledToFill()
+                default:
+                    initialsView
+                }
+            }
+            .frame(width: avatarSize, height: avatarSize)
+            .clipShape(Circle())
+        } else {
+            initialsView
+        }
+    }
+
+    private var initialsView: some View {
+        let name = comment.username.isEmpty ? "?" : comment.username
+        let letters = String(name.prefix(2)).uppercased()
+        return ZStack {
+            Circle()
+                .fill(Color(.systemGray4))
+                .frame(width: avatarSize, height: avatarSize)
+            Text(letters)
+                .font(.system(size: avatarSize * 0.42, weight: .semibold))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    private func formattedDate(_ iso: String) -> String {
+        // PocketBase returns "2006-01-02 15:04:05.999Z" format
+        let formatter = ISO8601DateFormatter()
+        formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
+        if let date = formatter.date(from: iso) {
+            let rel = RelativeDateTimeFormatter()
+            rel.unitsStyle = .abbreviated
+            return rel.localizedString(for: date, relativeTo: Date())
+        }
+        // Fallback: try space-separated format
+        let df = DateFormatter()
+        df.dateFormat = "yyyy-MM-dd HH:mm:ss.SSSZ"
+        if let date = df.date(from: iso) {
+            let rel = RelativeDateTimeFormatter()
+            rel.unitsStyle = .abbreviated
+            return rel.localizedString(for: date, relativeTo: Date())
+        }
+        return String(iso.prefix(10))
+    }
+}

ios/LibNovel/LibNovel/Views/Browse/BrowseView.swift

@@ -0,0 +1,567 @@
+import SwiftUI
+
+// MARK: - Discover View (Browse)
+// Serendipity-focused browsing with curated shelves.
+// No search bar — use the dedicated Search tab for that.
+
+struct BrowseView: View {
+    @StateObject private var vm = DiscoverViewModel()
+    @State private var showGenreSheet = false
+    
+    var body: some View {
+        NavigationStack {
+            VStack(spacing: 0) {
+                OfflineBanner()
+                
+                Group {
+                    if vm.isLoading && vm.trending.isEmpty {
+                        ProgressView()
+                            .frame(maxWidth: .infinity, maxHeight: .infinity)
+                    } else if let errorMsg = vm.error, vm.trending.isEmpty {
+                        VStack(spacing: 16) {
+                            Image(systemName: "wifi.slash")
+                                .font(.largeTitle)
+                                .foregroundStyle(.secondary)
+                            Text(errorMsg)
+                                .multilineTextAlignment(.center)
+                                .foregroundStyle(.secondary)
+                                .padding(.horizontal)
+                            Button("Retry") { Task { await vm.load() } }
+                                .buttonStyle(.borderedProminent)
+                                .tint(.amber)
+                        }
+                        .frame(maxWidth: .infinity, maxHeight: .infinity)
+                    } else {
+                        ScrollView {
+                            VStack(alignment: .leading, spacing: 32) {
+                                // Trending shelf
+                                if !vm.trending.isEmpty {
+                                    DiscoverShelf(
+                                        title: "Trending Now",
+                                        novels: vm.trending,
+                                        destination: .browseCategory(
+                                            sort: "popular",
+                                            genre: "all",
+                                            status: "all",
+                                            title: "Trending Now"
+                                        )
+                                    )
+                                }
+                                
+                                // Top Rated shelf
+                                if !vm.topRated.isEmpty {
+                                    DiscoverShelf(
+                                        title: "Top Rated",
+                                        novels: vm.topRated,
+                                        destination: .browseCategory(
+                                            sort: "rating",
+                                            genre: "all",
+                                            status: "all",
+                                            title: "Top Rated"
+                                        )
+                                    )
+                                }
+                                
+                                // Recently Updated shelf
+                                if !vm.recentlyUpdated.isEmpty {
+                                    DiscoverShelf(
+                                        title: "Recently Updated",
+                                        novels: vm.recentlyUpdated,
+                                        destination: .browseCategory(
+                                            sort: "updated",
+                                            genre: "all",
+                                            status: "all",
+                                            title: "Recently Updated"
+                                        )
+                                    )
+                                }
+                                
+                                // New Releases shelf
+                                if !vm.newReleases.isEmpty {
+                                    DiscoverShelf(
+                                        title: "New Releases",
+                                        novels: vm.newReleases,
+                                        destination: .browseCategory(
+                                            sort: "new",
+                                            genre: "all",
+                                            status: "all",
+                                            title: "New Releases"
+                                        )
+                                    )
+                                }
+                                
+                                // Categories button — replaces individual genre shelves
+                                CategoriesRow(onTap: { showGenreSheet = true })
+                                    .padding(.horizontal)
+                                
+                                Color.clear.frame(height: 100)
+                            }
+                            .padding(.top, 8)
+                        }
+                        .refreshable { await vm.load() }
+                    }
+                }
+                .navigationTitle("Discover")
+                .appNavigationDestination()
+                .toolbar {
+                    ToolbarItem(placement: .topBarTrailing) {
+                        HStack(spacing: 16) {
+                            DownloadQueueButton()
+                            AvatarToolbarButton()
+                        }
+                    }
+                }
+                .task { await vm.load() }
+            }
+        }
+        .sheet(isPresented: $showGenreSheet) {
+            GenrePickerSheet()
+        }
+    }
+}
+
+// MARK: - Categories row (Apple Books–style single button)
+
+private struct CategoriesRow: View {
+    let onTap: () -> Void
+
+    var body: some View {
+        Button(action: onTap) {
+            HStack(spacing: 14) {
+                ZStack {
+                    RoundedRectangle(cornerRadius: 10)
+                        .fill(Color.amber.opacity(0.15))
+                        .frame(width: 44, height: 44)
+                    Image(systemName: "square.grid.2x2")
+                        .font(.system(size: 20, weight: .medium))
+                        .foregroundStyle(Color.amber)
+                }
+
+                VStack(alignment: .leading, spacing: 2) {
+                    Text("Browse by Genre")
+                        .font(.body.weight(.semibold))
+                        .foregroundStyle(.primary)
+                    Text("Action, Fantasy, Romance & more")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+
+                Spacer()
+
+                Image(systemName: "chevron.right")
+                    .font(.system(size: 13, weight: .semibold))
+                    .foregroundStyle(.tertiary)
+            }
+            .padding(14)
+            .background(Color(.secondarySystemBackground))
+            .clipShape(RoundedRectangle(cornerRadius: 14))
+        }
+        .buttonStyle(.plain)
+    }
+}
+
+// MARK: - Genre picker sheet
+
+private struct GenrePickerSheet: View {
+    @Environment(\.dismiss) private var dismiss
+
+    private let genres: [(label: String, genre: String, icon: String)] = [
+        ("Action",        "action",        "bolt.fill"),
+        ("Fantasy",       "fantasy",       "wand.and.stars"),
+        ("Romance",       "romance",       "heart.fill"),
+        ("Sci-Fi",        "sci-fi",        "sparkles"),
+        ("Mystery",       "mystery",       "magnifyingglass"),
+        ("Horror",        "horror",        "moon.fill"),
+        ("Comedy",        "comedy",        "face.smiling"),
+        ("Adventure",     "adventure",     "map.fill"),
+        ("Martial Arts",  "martial arts",  "figure.martial.arts"),
+        ("Cultivation",   "cultivation",   "leaf.fill"),
+        ("Historical",    "historical",    "building.columns.fill"),
+        ("Slice of Life", "slice of life", "sun.max.fill"),
+    ]
+
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                LazyVGrid(
+                    columns: [
+                        GridItem(.flexible(), spacing: 12),
+                        GridItem(.flexible(), spacing: 12)
+                    ],
+                    spacing: 12
+                ) {
+                    // "All" tile
+                    NavigationLink(value: NavDestination.browseCategory(
+                        sort: "popular", genre: "all", status: "all", title: "All Novels"
+                    )) {
+                        GenreTile(label: "All Novels", icon: "books.vertical.fill")
+                    }
+                    .buttonStyle(.plain)
+                    .simultaneousGesture(TapGesture().onEnded { dismiss() })
+
+                    ForEach(genres, id: \.genre) { item in
+                        NavigationLink(value: NavDestination.browseCategory(
+                            sort: "popular",
+                            genre: item.genre,
+                            status: "all",
+                            title: item.label
+                        )) {
+                            GenreTile(label: item.label, icon: item.icon)
+                        }
+                        .buttonStyle(.plain)
+                        .simultaneousGesture(TapGesture().onEnded { dismiss() })
+                    }
+                }
+                .padding(16)
+                .padding(.bottom, 20)
+            }
+            .navigationTitle("Genres")
+            .navigationBarTitleDisplayMode(.large)
+            .appNavigationDestination()
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Done") { dismiss() }
+                        .fontWeight(.semibold)
+                        .foregroundStyle(Color.amber)
+                }
+            }
+        }
+        .presentationDetents([.medium, .large])
+        .presentationDragIndicator(.visible)
+        .presentationCornerRadius(20)
+    }
+}
+
+private struct GenreTile: View {
+    let label: String
+    let icon: String
+
+    var body: some View {
+        HStack(spacing: 10) {
+            Image(systemName: icon)
+                .font(.system(size: 16, weight: .medium))
+                .foregroundStyle(Color.amber)
+                .frame(width: 24)
+            Text(label)
+                .font(.subheadline.weight(.medium))
+                .foregroundStyle(.primary)
+                .lineLimit(1)
+            Spacer()
+        }
+        .padding(.horizontal, 14)
+        .padding(.vertical, 14)
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+}
+
+// MARK: - Discover Shelf (horizontal scrolling)
+
+private struct DiscoverShelf: View {
+    let title: String
+    let novels: [BrowseNovel]
+    let destination: NavDestination
+    
+    var body: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            // Header with "See All" button
+            HStack(spacing: 10) {
+                // Amber accent bar — matches ShelfHeader style used on Home and UserProfile
+                RoundedRectangle(cornerRadius: 2)
+                    .fill(Color.amber)
+                    .frame(width: 3, height: 18)
+                Text(title)
+                    .font(.title3.bold())
+                Spacer()
+                NavigationLink(value: destination) {
+                    HStack(spacing: 4) {
+                        Text("See All")
+                            .font(.subheadline)
+                        Image(systemName: "chevron.right")
+                            .font(.caption.bold())
+                    }
+                    .foregroundStyle(.amber)
+                }
+                .buttonStyle(.plain)
+            }
+            .padding(.horizontal)
+            
+            // Horizontal scroll — leading padding aligns cards with header
+            ScrollView(.horizontal, showsIndicators: false) {
+                HStack(alignment: .top, spacing: 12) {
+                    ForEach(novels) { novel in
+                        NavigationLink(value: NavDestination.book(novel.slug)) {
+                            DiscoverShelfCard(novel: novel)
+                        }
+                        .buttonStyle(.plain)
+                    }
+                }
+                .padding(.horizontal)
+                .padding(.vertical, 4)  // let shadows breathe
+            }
+        }
+    }
+}
+
+// MARK: - Shelf card (card-style)
+
+private struct DiscoverShelfCard: View {
+    let novel: BrowseNovel
+    
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            ZStack(alignment: .topLeading) {
+                AsyncCoverImage(url: novel.cover)
+                    .frame(width: 120, height: 173)   // 2:3 ratio
+                    .clipShape(RoundedRectangle(cornerRadius: 10))
+                    .bookCoverZoomSource(slug: novel.slug)
+                
+                if !novel.rank.isEmpty {
+                    Text(novel.rank)
+                        .font(.caption2.bold())
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 3)
+                        .background(.ultraThinMaterial, in: Capsule())
+                        .padding(6)
+                }
+            }
+            
+            VStack(alignment: .leading, spacing: 3) {
+                Text(novel.title)
+                    .font(.caption.bold())
+                    .lineLimit(2)
+                    .frame(width: 120, alignment: .leading)
+                    .multilineTextAlignment(.leading)
+                
+                if !novel.chapters.isEmpty {
+                    Text(novel.chapters)
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
+                        .lineLimit(1)
+                        .frame(width: 120, alignment: .leading)
+                }
+            }
+            .padding(.horizontal, 8)
+            .padding(.vertical, 8)
+        }
+        .frame(width: 136)
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 14))
+        .shadow(color: .black.opacity(0.08), radius: 6, x: 0, y: 2)
+    }
+}
+
+// MARK: - Browse Category View (full grid for "See All")
+
+struct BrowseCategoryView: View {
+    let sort: String
+    let genre: String
+    let status: String
+    let title: String
+    
+    @StateObject private var vm: BrowseViewModel
+    @State private var showFilters = false
+    
+    init(sort: String, genre: String, status: String, title: String) {
+        self.sort = sort
+        self.genre = genre
+        self.status = status
+        self.title = title
+        
+        let viewModel = BrowseViewModel()
+        viewModel.sort = sort
+        viewModel.genre = genre
+        viewModel.status = status
+        _vm = StateObject(wrappedValue: viewModel)
+    }
+    
+    var body: some View {
+        Group {
+            if vm.isLoading && vm.novels.isEmpty {
+                ProgressView()
+                    .frame(maxWidth: .infinity, maxHeight: .infinity)
+            } else if let errorMsg = vm.error, vm.novels.isEmpty {
+                VStack(spacing: 16) {
+                    Image(systemName: "wifi.slash")
+                        .font(.largeTitle)
+                        .foregroundStyle(.secondary)
+                    Text(errorMsg)
+                        .multilineTextAlignment(.center)
+                        .foregroundStyle(.secondary)
+                        .padding(.horizontal)
+                    Button("Retry") { Task { await vm.loadFirstPage() } }
+                        .buttonStyle(.borderedProminent)
+                        .tint(.amber)
+                }
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
+            } else {
+                ScrollView {
+                    LazyVGrid(
+                        columns: [
+                            GridItem(.flexible(), spacing: 14),
+                            GridItem(.flexible(), spacing: 14)
+                        ],
+                        spacing: 14
+                    ) {
+                        ForEach(vm.novels) { novel in
+                            NavigationLink(value: NavDestination.book(novel.slug)) {
+                                BrowseCategoryCard(novel: novel)
+                            }
+                            .buttonStyle(.plain)
+                            .onAppear {
+                                // Infinite scroll
+                                if novel.id == vm.novels.last?.id {
+                                    Task { await vm.loadNextPage() }
+                                }
+                            }
+                        }
+                    }
+                    .padding(.horizontal)
+                    .padding(.top, 12)
+                    .padding(.bottom, 100)
+                    
+                    if vm.isLoading && !vm.novels.isEmpty {
+                        ProgressView()
+                            .padding()
+                    }
+                }
+                .refreshable { await vm.loadFirstPage() }
+            }
+        }
+        .navigationTitle(title)
+        .navigationBarTitleDisplayMode(.large)
+        .appNavigationDestination()
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                Button {
+                    showFilters = true
+                } label: {
+                    Image(systemName: "slider.horizontal.3")
+                        .foregroundStyle(.amber)
+                }
+            }
+        }
+        .sheet(isPresented: $showFilters) {
+            BrowseFiltersView(vm: vm)
+        }
+        .task {
+            if vm.novels.isEmpty {
+                await vm.loadFirstPage()
+            }
+        }
+    }
+}
+
+private struct BrowseCategoryCard: View {
+    let novel: BrowseNovel
+    
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            ZStack(alignment: .topLeading) {
+                AsyncCoverImage(url: novel.cover)
+                    .frame(maxWidth: .infinity)
+                    .aspectRatio(2/3, contentMode: .fit)
+                    .clipShape(RoundedRectangle(cornerRadius: 10))
+                    .bookCoverZoomSource(slug: novel.slug)
+                
+                if !novel.rank.isEmpty {
+                    Text(novel.rank)
+                        .font(.caption2.bold())
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 3)
+                        .background(.ultraThinMaterial, in: Capsule())
+                        .padding(6)
+                }
+            }
+            
+            VStack(alignment: .leading, spacing: 3) {
+                Text(novel.title)
+                    .font(.subheadline.bold())
+                    .lineLimit(2)
+                    .fixedSize(horizontal: false, vertical: true)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                
+                if !novel.author.isEmpty {
+                    Text(novel.author)
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
+                        .lineLimit(1)
+                }
+                
+                if !novel.chapters.isEmpty {
+                    Text(novel.chapters)
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
+                        .lineLimit(1)
+                }
+            }
+            .padding(.horizontal, 10)
+            .padding(.vertical, 10)
+        }
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 14))
+        .shadow(color: .black.opacity(0.08), radius: 6, x: 0, y: 2)
+    }
+}
+
+// MARK: - Filters sheet (kept for future "See All" views)
+
+struct BrowseFiltersView: View {
+    @ObservedObject var vm: BrowseViewModel
+    @Environment(\.dismiss) private var dismiss
+    
+    let sortOptions = ["popular", "new", "updated", "rating", "rank"]
+    let genreOptions = ["all", "action", "fantasy", "romance", "sci-fi", "mystery",
+                        "horror", "comedy", "drama", "adventure", "martial arts",
+                        "cultivation", "magic", "supernatural", "historical", "slice of life"]
+    let statusOptions = ["all", "ongoing", "completed"]
+    
+    var body: some View {
+        NavigationStack {
+            Form {
+                Section("Sort") {
+                    ForEach(sortOptions, id: \.self) { opt in
+                        HStack {
+                            Text(opt.capitalized)
+                            Spacer()
+                            if vm.sort == opt { Image(systemName: "checkmark").foregroundStyle(.amber) }
+                        }
+                        .contentShape(Rectangle())
+                        .onTapGesture { vm.sort = opt; dismiss() }
+                    }
+                }
+                Section("Genre") {
+                    ForEach(genreOptions, id: \.self) { opt in
+                        HStack {
+                            Text(opt == "all" ? "All Genres" : opt.capitalized)
+                            Spacer()
+                            if vm.genre == opt { Image(systemName: "checkmark").foregroundStyle(.amber) }
+                        }
+                        .contentShape(Rectangle())
+                        .onTapGesture { vm.genre = opt; dismiss() }
+                    }
+                }
+                Section("Status") {
+                    ForEach(statusOptions, id: \.self) { opt in
+                        HStack {
+                            Text(opt.capitalized)
+                            Spacer()
+                            if vm.status == opt { Image(systemName: "checkmark").foregroundStyle(.amber) }
+                        }
+                        .contentShape(Rectangle())
+                        .onTapGesture { vm.status = opt; dismiss() }
+                    }
+                }
+            }
+            .navigationTitle("Filters")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Done") { dismiss() }
+                }
+            }
+        }
+        .presentationDetents([.medium, .large])
+    }
+}

ios/LibNovel/LibNovel/Views/ChapterReader/DownloadAudioButton.swift

@@ -0,0 +1,156 @@
+import SwiftUI
+
+// MARK: - Download Audio Button
+// Shows download status and allows users to download/delete offline audio.
+// Uses symbolEffect + spring animations for a modern, tactile feel.
+
+struct DownloadAudioButton: View {
+    let slug: String
+    let chapter: Int
+    let voice: String
+    let theme: ReaderTheme
+
+    @StateObject private var downloadService = AudioDownloadService.shared
+    @State private var showDownloadMenu = false
+    @State private var bounceDownload = false
+
+    private var downloadKey: String {
+        AudioDownloadService.shared.makeKey(slug: slug, chapter: chapter, voice: voice)
+    }
+
+    private var isDownloaded: Bool {
+        downloadService.isDownloaded(slug: slug, chapter: chapter, voice: voice)
+    }
+
+    private var downloadProgress: DownloadProgress? {
+        downloadService.downloads[downloadKey]
+    }
+
+    private var accentColor: Color {
+        theme == .sepia ? Color(red: 0.65, green: 0.45, blue: 0.15) : .amber
+    }
+
+    var body: some View {
+        Button {
+            showDownloadMenu = true
+        } label: {
+            ZStack {
+                // Background pill
+                Circle()
+                    .fill(backgroundFillColor)
+                    .frame(width: 44, height: 44)
+
+                stateIcon
+            }
+        }
+        .buttonStyle(.plain)
+        .animation(.spring(response: 0.3, dampingFraction: 0.7), value: isDownloaded)
+        .animation(.spring(response: 0.3, dampingFraction: 0.7), value: downloadProgress?.status.isDownloading)
+        .confirmationDialog("Audio Download", isPresented: $showDownloadMenu) {
+            if isDownloaded {
+                Button("Delete Download", role: .destructive) {
+                    Task {
+                        try? await downloadService.deleteDownload(slug: slug, chapter: chapter, voice: voice)
+                    }
+                }
+            } else if let progress = downloadProgress, case .downloading = progress.status {
+                Button("Cancel Download", role: .destructive) {
+                    downloadService.cancelDownload(slug: slug, chapter: chapter, voice: voice)
+                }
+            } else {
+                Button("Download for Offline") {
+                    Task {
+                        try? await downloadService.download(slug: slug, chapter: chapter, voice: voice)
+                    }
+                    withAnimation(.spring(response: 0.4, dampingFraction: 0.5)) { bounceDownload.toggle() }
+                }
+            }
+            Button("Cancel", role: .cancel) {}
+        } message: {
+            if isDownloaded {
+                Text("This chapter's audio is downloaded for offline listening.")
+            } else if let progress = downloadProgress, case .downloading = progress.status {
+                Text("Downloading… \(Int(progress.progress * 100))%")
+            } else {
+                Text("Download this chapter's audio to listen offline without internet connection.")
+            }
+        }
+    }
+
+    // MARK: - Background
+
+    private var backgroundFillColor: Color {
+        if isDownloaded {
+            return Color.green.opacity(0.15)
+        } else if let progress = downloadProgress, case .downloading = progress.status {
+            return accentColor.opacity(0.1)
+        } else if let progress = downloadProgress, case .failed = progress.status {
+            return Color.red.opacity(0.12)
+        } else {
+            return theme.textColor.opacity(0.07)
+        }
+    }
+
+    // MARK: - Icon
+
+    @ViewBuilder
+    private var stateIcon: some View {
+        if isDownloaded {
+            Image(systemName: "checkmark.circle.fill")
+                .font(.system(size: 22))
+                .foregroundStyle(.green)
+                .symbolEffect(.bounce, value: isDownloaded)
+                .transition(.scale.combined(with: .opacity))
+
+        } else if let progress = downloadProgress {
+            switch progress.status {
+            case .downloading:
+                ZStack {
+                    // Track ring
+                    Circle()
+                        .stroke(accentColor.opacity(0.18), lineWidth: 2.5)
+                    // Progress arc
+                    Circle()
+                        .trim(from: 0, to: progress.progress)
+                        .stroke(
+                            accentColor,
+                            style: StrokeStyle(lineWidth: 2.5, lineCap: .round)
+                        )
+                        .rotationEffect(.degrees(-90))
+                        .animation(.easeInOut(duration: 0.2), value: progress.progress)
+                    // Down arrow
+                    Image(systemName: "arrow.down")
+                        .font(.system(size: 12, weight: .bold))
+                        .foregroundStyle(accentColor)
+                }
+                .frame(width: 26, height: 26)
+                .transition(.scale.combined(with: .opacity))
+
+            case .failed:
+                Image(systemName: "exclamationmark.circle.fill")
+                    .font(.system(size: 22))
+                    .foregroundStyle(.red)
+                    .symbolEffect(.pulse)
+                    .transition(.scale.combined(with: .opacity))
+
+            case .completed:
+                EmptyView()
+            }
+
+        } else {
+            // Idle — not yet downloaded
+            Image(systemName: "arrow.down.circle")
+                .font(.system(size: 22))
+                .foregroundStyle(theme.textColor.opacity(0.55))
+                .symbolEffect(.bounce, value: bounceDownload)
+                .transition(.scale.combined(with: .opacity))
+        }
+    }
+}
+
+private extension DownloadStatus {
+    var isDownloading: Bool {
+        if case .downloading = self { return true }
+        return false
+    }
+}

ios/LibNovel/LibNovel/Views/Common/CommonViews.swift

@@ -0,0 +1,164 @@
+import SwiftUI
+import Kingfisher
+
+// MARK: - Empty state placeholder used across all screens
+
+struct EmptyStateView: View {
+    let icon: String
+    let title: String
+    let message: String
+
+    var body: some View {
+        VStack(spacing: 14) {
+            Image(systemName: icon)
+                .font(.system(size: 48))
+                .foregroundStyle(.tertiary)
+            Text(title)
+                .font(.headline)
+            Text(message)
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+                .multilineTextAlignment(.center)
+                .padding(.horizontal, 40)
+        }
+    }
+}
+
+// MARK: - Cover image card reused across screens
+
+struct BookCard: View {
+    let book: Book
+    var body: some View {
+        VStack(alignment: .leading, spacing: 6) {
+            AsyncCoverImage(url: book.cover)
+                .frame(height: 200)
+                .clipShape(RoundedRectangle(cornerRadius: 10))
+            Text(book.title)
+                .font(.caption.bold())
+                .lineLimit(2)
+            Text(book.author)
+                .font(.caption2)
+                .foregroundStyle(.secondary)
+                .lineLimit(1)
+        }
+    }
+}
+
+// MARK: - Async cover image with disk/memory caching via Kingfisher
+
+struct AsyncCoverImage: View {
+    let url: String
+    /// When true the placeholder is a plain colour fill — used for blurred hero backgrounds
+    /// so the rounded-rect loading indicator doesn't bleed through.
+    var isBackground: Bool = false
+
+    var body: some View {
+        KFImage(URL(string: url))
+            .resizable()
+            .placeholder {
+                if isBackground {
+                    Color(.systemGray6)
+                } else {
+                    RoundedRectangle(cornerRadius: 10)
+                        .fill(Color(.systemGray5))
+                        .overlay(Image(systemName: "book.closed").foregroundStyle(.secondary))
+                }
+            }
+            .scaledToFill()
+    }
+}
+
+// MARK: - Tag chip
+
+struct TagChip: View {
+    let label: String
+    var body: some View {
+        Text(label)
+            .font(.caption2.bold())
+            .padding(.horizontal, 8)
+            .padding(.vertical, 4)
+            .background(Color(.systemGray5), in: Capsule())
+    }
+}
+
+// MARK: - Unified chip button (filter/sort chips across all screens)
+//
+// .filled  → amber background when selected (genre filter chips in Library)
+// .outlined → amber border + tint when selected, grey background (sort chips, browse filter chips)
+
+enum ChipButtonStyle { case filled, outlined }
+
+struct ChipButton: View {
+    let label: String
+    let isSelected: Bool
+    var style: ChipButtonStyle = .filled
+    let action: () -> Void
+
+    var body: some View {
+        Button(action: action) {
+            Text(label)
+                .font(chipFont)
+                .padding(.horizontal, chipHPad)
+                .padding(.vertical, 6)
+                .background(background)
+                .foregroundStyle(foregroundColor)
+                .overlay(border)
+        }
+        .buttonStyle(.plain)
+    }
+
+    private var chipFont: Font {
+        switch style {
+        case .filled:   return .caption.weight(isSelected ? .semibold : .regular)
+        case .outlined: return .subheadline.weight(isSelected ? .semibold : .regular)
+        }
+    }
+
+    private var chipHPad: CGFloat { style == .outlined ? 14 : 12 }
+
+    @ViewBuilder
+    private var background: some View {
+        switch style {
+        case .filled:
+            Capsule().fill(isSelected ? Color.amber : Color(.systemGray5))
+        case .outlined:
+            Capsule()
+                .fill(isSelected ? Color.amber.opacity(0.15) : Color(.systemGray6))
+                .overlay(Capsule().stroke(isSelected ? Color.amber : .clear, lineWidth: 1.5))
+        }
+    }
+
+    private var foregroundColor: Color {
+        switch style {
+        case .filled:   return isSelected ? .white : .primary
+        case .outlined: return isSelected ? .amber : .primary
+        }
+    }
+
+    @ViewBuilder
+    private var border: some View {
+        // outlined style already has its border baked into `background`
+        EmptyView()
+    }
+}
+
+// MARK: - Shelf header (amber accent bar + title)
+// Used by HomeView, UserProfileView, BrowseView's DiscoverShelf, and any future shelf screen.
+// Call sites that need trailing content (e.g. a "See All" NavigationLink) wrap this in an HStack.
+
+struct ShelfHeader: View {
+    let title: String
+
+    var body: some View {
+        HStack(spacing: 10) {
+            // 3-pt amber accent bar — the brand visual anchor for all shelf titles
+            RoundedRectangle(cornerRadius: 2)
+                .fill(Color.amber)
+                .frame(width: 3, height: 18)
+            Text(title)
+                .font(.title3.bold())
+        }
+        .padding(.horizontal)
+        .padding(.bottom, 10)
+    }
+}

ios/LibNovel/LibNovel/Views/Components/OfflineBanner.swift

@@ -0,0 +1,32 @@
+import SwiftUI
+
+// MARK: - Offline Banner
+// Subtle banner shown at top of screen when network is unavailable
+
+struct OfflineBanner: View {
+    @EnvironmentObject var networkMonitor: NetworkMonitor
+    
+    var body: some View {
+        if !networkMonitor.isConnected {
+            HStack(spacing: 8) {
+                Image(systemName: "wifi.slash")
+                    .font(.caption)
+                Text("You're offline")
+                    .font(.subheadline.weight(.medium))
+                Spacer()
+                Text("Showing cached content")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            .padding(.horizontal, 16)
+            .padding(.vertical, 8)
+            .background(Color.orange.opacity(0.15))
+            .overlay(alignment: .bottom) {
+                Rectangle()
+                    .fill(Color.orange.opacity(0.3))
+                    .frame(height: 1)
+            }
+            .transition(.move(edge: .top).combined(with: .opacity))
+        }
+    }
+}

ios/LibNovel/LibNovel/Views/Downloads/DownloadQueueButton.swift

@@ -0,0 +1,340 @@
+import SwiftUI
+
+// MARK: - Download Queue Toolbar Button
+// Compact toolbar button that shows active download status and opens queue management sheet.
+// Shows:
+// - Download icon with badge count when downloads are active
+// - Progress ring around icon
+// - Taps opens DownloadQueueSheet for management
+
+struct DownloadQueueButton: View {
+    @StateObject private var downloadService = AudioDownloadService.shared
+    @State private var showQueue = false
+    
+    private var activeDownloads: [DownloadProgress] {
+        downloadService.downloads.values.filter { $0.status == .downloading }
+    }
+    
+    private var hasActiveDownloads: Bool {
+        !activeDownloads.isEmpty
+    }
+    
+    private var averageProgress: Double {
+        guard !activeDownloads.isEmpty else { return 0 }
+        let total = activeDownloads.reduce(0.0) { $0 + $1.progress }
+        return total / Double(activeDownloads.count)
+    }
+    
+    var body: some View {
+        Button {
+            showQueue = true
+        } label: {
+            ZStack {
+                // Progress ring (only shown when downloading)
+                if hasActiveDownloads {
+                    Circle()
+                        .stroke(Color.amber.opacity(0.3), lineWidth: 2)
+                        .frame(width: 30, height: 30)
+                    
+                    Circle()
+                        .trim(from: 0, to: averageProgress)
+                        .stroke(Color.amber, style: StrokeStyle(lineWidth: 2, lineCap: .round))
+                        .frame(width: 30, height: 30)
+                        .rotationEffect(.degrees(-90))
+                        .animation(.easeInOut(duration: 0.3), value: averageProgress)
+                }
+                
+                // Download icon
+                Image(systemName: hasActiveDownloads ? "arrow.down.circle.fill" : "arrow.down.circle")
+                    .font(.system(size: 22))
+                    .foregroundStyle(hasActiveDownloads ? .amber : .secondary)
+                    .symbolRenderingMode(.hierarchical)
+                
+                // Badge count (top-right corner)
+                if activeDownloads.count > 0 {
+                    VStack {
+                        HStack {
+                            Spacer()
+                            Text("\(activeDownloads.count)")
+                                .font(.system(size: 10, weight: .bold))
+                                .foregroundStyle(.white)
+                                .padding(3)
+                                .frame(minWidth: 16)
+                                .background(Circle().fill(Color.red))
+                                .offset(x: 6, y: -6)
+                        }
+                        Spacer()
+                    }
+                    .frame(width: 30, height: 30)
+                }
+            }
+        }
+        .opacity(hasActiveDownloads || downloadService.downloadedChapters.count > 0 ? 1 : 0.6)
+        .sheet(isPresented: $showQueue) {
+            DownloadQueueSheet()
+        }
+    }
+}
+
+// MARK: - Download Queue Management Sheet
+// Bottom sheet showing active downloads and quick management options
+
+struct DownloadQueueSheet: View {
+    @StateObject private var downloadService = AudioDownloadService.shared
+    @Environment(\.dismiss) private var dismiss
+    
+    private var activeDownloads: [(key: String, value: DownloadProgress)] {
+        downloadService.downloads
+            .filter { $0.value.status == .downloading }
+            .sorted { $0.key < $1.key }
+    }
+    
+    private var failedDownloads: [(key: String, value: DownloadProgress)] {
+        downloadService.downloads.compactMap { key, value in
+            if case .failed = value.status {
+                return (key, value)
+            }
+            return nil
+        }
+        .sorted { $0.key < $1.key }
+    }
+    
+    private var totalDownloaded: Int {
+        downloadService.downloadedChapters.count
+    }
+    
+    var body: some View {
+        NavigationStack {
+            Group {
+                if activeDownloads.isEmpty && failedDownloads.isEmpty && totalDownloaded == 0 {
+                    emptyState
+                } else {
+                    List {
+                        // Active downloads section
+                        if !activeDownloads.isEmpty {
+                            Section {
+                                ForEach(activeDownloads, id: \.key) { key, progress in
+                                    ActiveDownloadRow(progress: progress)
+                                }
+                            } header: {
+                                HStack {
+                                    Text("Downloading")
+                                    Spacer()
+                                    Text("\(activeDownloads.count)")
+                                        .foregroundStyle(.secondary)
+                                }
+                            }
+                        }
+                        
+                        // Failed downloads section
+                        if !failedDownloads.isEmpty {
+                            Section("Failed") {
+                                ForEach(failedDownloads, id: \.key) { key, progress in
+                                    FailedDownloadRow(progress: progress, key: key)
+                                }
+                            }
+                        }
+                        
+                        // Quick stats section
+                        Section {
+                            NavigationLink {
+                                DownloadsView()
+                            } label: {
+                                HStack {
+                                    Image(systemName: "checkmark.circle.fill")
+                                        .foregroundStyle(.green)
+                                    Text("Downloaded Chapters")
+                                    Spacer()
+                                    Text("\(totalDownloaded)")
+                                        .foregroundStyle(.secondary)
+                                }
+                            }
+                            
+                            HStack {
+                                Image(systemName: "internaldrive")
+                                    .foregroundStyle(.amber)
+                                Text("Storage Used")
+                                Spacer()
+                                Text(storageUsedFormatted)
+                                    .foregroundStyle(.secondary)
+                            }
+                        }
+                        
+                        // Cancel all option (only show if there are active downloads)
+                        if !activeDownloads.isEmpty {
+                            Section {
+                                Button(role: .destructive) {
+                                    activeDownloads.forEach { key, progress in
+                                        downloadService.cancelDownload(
+                                            slug: progress.slug,
+                                            chapter: progress.chapter,
+                                            voice: progress.voice
+                                        )
+                                    }
+                                } label: {
+                                    HStack {
+                                        Spacer()
+                                        Text("Cancel All Downloads")
+                                            .font(.subheadline.bold())
+                                        Spacer()
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            .navigationTitle("Download Queue")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button("Done") {
+                        dismiss()
+                    }
+                    .foregroundStyle(.amber)
+                }
+            }
+        }
+        .presentationDetents([.medium, .large])
+        .presentationDragIndicator(.visible)
+    }
+    
+    // MARK: - Empty State
+    
+    @ViewBuilder
+    private var emptyState: some View {
+        VStack(spacing: 16) {
+            Image(systemName: "arrow.down.circle")
+                .font(.system(size: 56))
+                .foregroundStyle(.secondary.opacity(0.5))
+            Text("No Active Downloads")
+                .font(.title2.bold())
+                .foregroundStyle(.primary)
+            Text("Audio chapters you download will appear here")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+                .multilineTextAlignment(.center)
+                .padding(.horizontal, 40)
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+    
+    // MARK: - Helpers
+    
+    private var storageUsedFormatted: String {
+        let bytes = downloadService.getTotalStorageUsed()
+        return ByteCountFormatter.string(fromByteCount: bytes, countStyle: .file)
+    }
+}
+
+// MARK: - Active Download Row
+
+private struct ActiveDownloadRow: View {
+    let progress: DownloadProgress
+    @StateObject private var downloadService = AudioDownloadService.shared
+    
+    var body: some View {
+        HStack(spacing: 12) {
+            // Book/Chapter info
+            VStack(alignment: .leading, spacing: 4) {
+                Text(formatSlug(progress.slug))
+                    .font(.subheadline.bold())
+                    .lineLimit(1)
+                Text("Chapter \(progress.chapter)")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            
+            Spacer()
+            
+            // Progress indicator
+            VStack(alignment: .trailing, spacing: 4) {
+                Text("\(Int(progress.progress * 100))%")
+                    .font(.caption.bold())
+                    .foregroundStyle(.amber)
+                    .monospacedDigit()
+                
+                ProgressView(value: progress.progress)
+                    .frame(width: 60)
+                    .tint(.amber)
+            }
+            
+            // Cancel button
+            Button {
+                downloadService.cancelDownload(
+                    slug: progress.slug,
+                    chapter: progress.chapter,
+                    voice: progress.voice
+                )
+            } label: {
+                Image(systemName: "xmark.circle.fill")
+                    .font(.system(size: 20))
+                    .foregroundStyle(.secondary)
+            }
+            .buttonStyle(.plain)
+        }
+        .padding(.vertical, 4)
+    }
+    
+    private func formatSlug(_ slug: String) -> String {
+        // Convert slug to readable title (e.g., "my-book-title" -> "My Book Title")
+        slug.split(separator: "-")
+            .map { $0.capitalized }
+            .joined(separator: " ")
+    }
+}
+
+// MARK: - Failed Download Row
+
+private struct FailedDownloadRow: View {
+    let progress: DownloadProgress
+    let key: String
+    @StateObject private var downloadService = AudioDownloadService.shared
+    
+    var body: some View {
+        HStack(spacing: 12) {
+            Image(systemName: "exclamationmark.triangle.fill")
+                .foregroundStyle(.red)
+            
+            VStack(alignment: .leading, spacing: 4) {
+                Text(formatSlug(progress.slug))
+                    .font(.subheadline.bold())
+                    .lineLimit(1)
+                Text("Chapter \(progress.chapter)")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            
+            Spacer()
+            
+            // Retry button
+            Button {
+                Task {
+                    // Remove failed status
+                    downloadService.downloads.removeValue(forKey: key)
+                    // Retry download
+                    try? await downloadService.download(
+                        slug: progress.slug,
+                        chapter: progress.chapter,
+                        voice: progress.voice
+                    )
+                }
+            } label: {
+                Text("Retry")
+                    .font(.caption.bold())
+                    .foregroundStyle(.amber)
+                    .padding(.horizontal, 12)
+                    .padding(.vertical, 6)
+                    .background(Color.amber.opacity(0.15), in: Capsule())
+            }
+            .buttonStyle(.plain)
+        }
+        .padding(.vertical, 4)
+    }
+    
+    private func formatSlug(_ slug: String) -> String {
+        slug.split(separator: "-")
+            .map { $0.capitalized }
+            .joined(separator: " ")
+    }
+}