v1.7.8 - Stability, multi-room sync, and CarPlay.

- Major playback engine reliability overhaul: playback no longer stops unexpectedly between tracks in long playlists, brief network hiccups no longer cut a track short or skip ahead early, and the app reconnects reliably after Wi-Fi drops - including cases where it previously got stuck and needed a restart.

- Multi-room: the player now rejoins its sync group automatically after the app is relaunched, and sync with Squeezeboxes and squeezelite stays tightly aligned throughout playback.

- CarPlay: Favorites with album art and folder browsing; star or unstar the current track from Now Playing; new "Keep Playing" button starts Don't Stop The Music from the current track (when enabled on your server).

- Fixed: favorites with a custom icon URL now show their icon in CarPlay instead of a generic radio placeholder.

- Fixed: opening the app on your phone while music was playing via CarPlay could briefly interrupt playback. It now continues seamlessly, and the app-open audio blip after a long background is gone.

- Fixed: on an unstable connection (VPN, weak cellular), playback could stop silently when the next track failed to load. The player now reports the failure and moves on automatically.

- Fixed: lock screen and Control Center now update song title and artwork when a radio track changes (Radio Paradise, iHeart, etc.).

- Fixed: adjusting the balance setting on the server no longer lowers the overall volume, and a rare crash after ~50 days of iPhone uptime is resolved.

- New: Copy Diagnostic Log button in Settings -> Advanced & About, to make reporting issues easier.

- Optional: hardware volume buttons can control other LMS players while LyrPlay is idle (off by default). Fresh installs default to lossless (FLAC). Manual server selection is no longer overwritten by automatic failover.