- Platform detection utilities (is_ios, is_standalone, supports_push)
- iOS-specific meta tags and Apple touch icons
- Auto-detect iOS and show user-friendly message when not in standalone mode
- Enhanced Service Worker with iOS-compatible notification options
- Comprehensive iOS push notification documentation
- manifest.json scope for PWA compliance
- Only works when added to Home Screen (iOS Safari limitation)
- Backend: web-push integration with VAPID keys
- Push subscription endpoints (GET /api/push/public-key, POST /api/push/subscribe)
- In-memory subscription store
- Frontend: Auto-subscribe to push after notification permission granted
- Service Worker: Push event handler
- Send push notifications when torrents complete
- Works even when browser is closed
