- New modern audio wave 'A' logo (192x192 and 512x512 icons)
- PWA service worker for offline support and installability
- Wake Lock API for background audio on FiiO/Android devices
- Visibility change handling to prevent audio pause on screen off
- Updated manifest.json with music categories and proper PWA config
- Media Session API lock screen controls (already present)
- Renamed app to 'Audiophile Web Player'
