v2.6.50: notifications overhaul, fix blank page, fix chapter review loading

- svelte.config.js: paths.relative=false so CSS uses absolute /_app/ paths (fixes blank home page after redirect)
- ai-jobs: fix openReview() mutating stale alias r instead of $state review — was causing 'Loading results...' to never resolve for chapter-names/image-gen/description
- notifications bell: redesign with All/Unread tabs, per-item dismiss (×), mark-all-read, clear-all, 'View all' footer link
- /admin/notifications: new dedicated full-page notifications view
- api/notifications proxy: add PATCH (mark-all-read) and DELETE (clear-all, dismiss) handlers
- runner: add CreateNotification calls on success/failure in runScrapeTask, runAudioTask, runTranslationTask
- storage/import.go: real PDF (dslipak/pdf) and EPUB (archive/zip + x/net/html) parsing replacing stubs
- translation admin page: stream jobs Promise instead of blocking navigation
- store.go: DeleteNotification, ClearAllNotifications, MarkAllNotificationsRead methods
- handlers_notifications.go + server.go: PATCH /api/notifications, DELETE /api/notifications, DELETE /api/notifications/{id}

backend/go.mod

@@ -12,8 +12,10 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/clipperhouse/uax29/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/dslipak/pdf v0.0.2 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/getsentry/sentry-go v0.43.0 // indirect
@@ -23,16 +25,21 @@ require (
 	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
+	github.com/hhrutter/lzw v1.0.0 // indirect
+	github.com/hhrutter/pkcs7 v0.2.0 // indirect
+	github.com/hhrutter/tiff v1.0.2 // indirect
 	github.com/hibiken/asynq v0.26.0 // indirect
 	github.com/hibiken/asynq/x v0.0.0-20260203063626-d704b68a426d // 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/mattn/go-runewidth v0.0.19 // indirect
 	github.com/meilisearch/meilisearch-go v0.36.1 // indirect
 	github.com/minio/crc64nvme v1.1.1 // indirect
 	github.com/minio/md5-simd v1.1.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/philhofer/fwd v1.2.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.23.2 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
@@ -61,6 +68,7 @@ require (
 	go.yaml.in/yaml/v2 v2.4.2 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/crypto v0.48.0 // indirect
+	golang.org/x/image v0.32.0 // indirect
 	golang.org/x/sys v0.41.0 // indirect
 	golang.org/x/text v0.34.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
@@ -68,5 +76,6 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20260209200024-4cfbd4190f57 // indirect
 	google.golang.org/grpc v1.79.2 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )