fix: simplify audiobook sleep timer custom input; update README

- Remove OK button and expand-on-click from sleep timer custom row
- Always show label + plain number input (no spinners, Enter to confirm)
- Update README with all current features (Spotify importer, ABS, lyrics, filters, etc.)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -7,16 +7,45 @@ Built with Vite + vanilla ES modules, served via nginx in Docker.
 
 ## Features
 
+### Music Library
 - Stream music from your Navidrome / Subsonic library
-- Browse artists, albums, playlists, starred tracks and random picks
-- Queue management with shuffle, repeat (all / once) and radio mode (endless random)
-- Now Playing overlay with swipe-to-dismiss and lock screen media controls (Android/iOS)
-- iTunes / Last.fm integration — charts, global search, 30s previews, recommendations
-- Download tracks from YouTube/SoundCloud via yt-dlp directly into your music library
-- Duplicate detection — skips tracks that already exist on the server
-- Edit playlists (name, description, cover art, public toggle)
-- PWA — installable, offline-capable via service worker
+- Browse artists, albums, playlists, starred tracks, and random picks
+- Sort and filter views (albums, favorites) with chip filters
+- Search/filter bar inside playlist detail and favorites (instant, client-side)
+- Synced and plain lyrics via LRCLIB (auto-fetched per track)
+
+### Playback
+- Queue management with shuffle, repeat (all / once), and radio mode (endless random)
+- Now Playing overlay with swipe-to-dismiss
+- Lock screen media controls (Android / iOS via Media Session API)
+- Gapless-style queue with prev/next, skip forward/back
+
+### Discovery
+- iTunes / Last.fm integration — charts, global search, 30-second previews, similar artists, recommendations
+- Spotify playlist importer — paste a Spotify playlist URL to preview and download all tracks, enriched with iTunes metadata and cover art
+
+### Downloads (yt-dlp backend)
+- Download individual tracks, full albums, or entire artists from YouTube / SoundCloud
+- Spotify playlist importer downloads with iTunes-enriched metadata (album, year, track number, genre, cover art)
+- Duplicate detection — skips tracks already present on the server
+- Lyrics embedded into downloaded files (LRCLIB)
+
+### Playlists
+- Create, edit, and delete playlists
+- Edit playlist name, description, cover art, and public/private toggle
+- Add / remove tracks; reorder via drag and drop
+
+### Audiobookshelf Integration
+- Connect to your Audiobookshelf server (URL + API key)
+- Browse and stream audiobooks from your ABS library
+- Full player: chapters list, playback speed, sleep timer (preset or custom minutes), progress sync
+
+### App
+- PWA — installable on Android / iOS / desktop, offline-capable via service worker
+- Android APK (WebView wrapper with native feel)
+- Multiple color themes
 - Dark theme, mobile-first responsive layout
+- German UI
 
 ---
 
@@ -31,15 +60,23 @@ Music_App/
 │   ├── player.js              # Playback, transport, queue, media session, preview
 │   ├── views.js               # Navigation, page loaders, card makers, search
 │   ├── ui.js                  # Modals, overlays, sidebar, settings, context menu
+│   ├── nowplaying.js          # Now Playing overlay
+│   ├── abs.js                 # Audiobookshelf integration
+│   ├── spotify.js             # Spotify playlist importer
+│   ├── components.js          # Shared UI components
+│   ├── themes.js              # Theme switching
 │   ├── pwa.js                 # Service worker registration + update banner
 │   └── main.js                # App init, audio wiring, window globals
+├── backend/
+│   ├── novasonic-server.js    # Node.js download backend (yt-dlp + ffmpeg)
+│   └── lib/
+│       └── metadata.js        # iTunes lookup, lyrics fetch, artwork download
 ├── public/                    # Static assets (copied as-is to dist/)
 │   ├── sw.js                  # Service worker
 │   ├── manifest.json          # PWA manifest
 │   ├── icon.svg               # App icon
 │   └── config.js              # Runtime config placeholder (generated by Docker)
-├── backend/
-│   └── novasonic-server.js    # Node.js download backend (yt-dlp + ffmpeg)
+├── android/                   # Android WebView APK wrapper
 ├── index.html                 # App shell + Vite entry point
 ├── styles.css                 # All styles
 ├── vite.config.js
@@ -104,3 +141,4 @@ npm run preview  # Preview the production build locally
 2. Enter your Navidrome server URL, username and password
 3. Optionally add a Last.fm API key (Settings) for recommendations and similar artists
 4. Optionally add the backend URL (Settings) to enable yt-dlp downloads
+5. Optionally connect Audiobookshelf (Settings) to stream audiobooks