Add iOS app, SvelteKit JSON API endpoints, and Gitea CI workflow

- iOS SwiftUI app (ios/LibNovel/) targeting iOS 17+, generated via xcodegen
  - Full feature set: auth, home, library, book detail, chapter reader, browse, audio player, profile
  - Kingfisher for image loading, swift-markdown-ui for chapter rendering
  - Base URL: https://v2.libnovel.kalekber.cc
- SvelteKit JSON API routes (ui/src/routes/api/) for iOS consumption:
  auth/login, auth/register, auth/me, auth/logout, auth/change-password,
  home, library, book/[slug], chapter/[slug]/[n], search, ranking,
  progress/[slug], presign/audio (updated)
- Gitea Actions CI: .gitea/workflows/ios.yaml (build + test on macos-latest)
- justfile: ios-gen, ios-build, ios-test recipes

ui/src/routes/api/home/+server.ts

@@ -0,0 +1,48 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+import { listBooks, recentlyAddedBooks, allProgress, getHomeStats } from '$lib/server/pocketbase';
+import { log } from '$lib/server/logger';
+import type { Book, Progress } from '$lib/server/pocketbase';
+
+/**
+ * GET /api/home
+ * Returns home screen data: continue-reading list, recently updated books, and stats.
+ * Requires authentication (enforced by layout guard).
+ */
+export const GET: RequestHandler = async ({ locals }) => {
+	let allBooks: Book[] = [];
+	let recentBooks: Book[] = [];
+	let progressList: Progress[] = [];
+	let stats = { totalBooks: 0, totalChapters: 0 };
+
+	try {
+		[allBooks, recentBooks, progressList, stats] = await Promise.all([
+			listBooks(),
+			recentlyAddedBooks(8),
+			allProgress(locals.sessionId, locals.user?.id),
+			getHomeStats()
+		]);
+	} catch (e) {
+		log.error('api/home', 'failed to load home data', { err: String(e) });
+	}
+
+	const bookMap = new Map<string, Book>(allBooks.map((b) => [b.slug, b]));
+
+	const continueReading = progressList
+		.filter((p) => bookMap.has(p.slug))
+		.slice(0, 6)
+		.map((p) => ({ book: bookMap.get(p.slug)!, chapter: p.chapter }));
+
+	const inProgressSlugs = new Set(continueReading.map((c) => c.book.slug));
+	const recentlyUpdated = recentBooks.filter((b) => !inProgressSlugs.has(b.slug)).slice(0, 6);
+
+	return json({
+		continue_reading: continueReading,
+		recently_updated: recentlyUpdated,
+		stats: {
+			totalBooks: stats.totalBooks,
+			totalChapters: stats.totalChapters,
+			booksInProgress: continueReading.length
+		}
+	});
+};