feat: PAILot Flutter app - complete rewrite from React Native
Voice-first AI communicator mobile app connecting to AIBroker daemon via WebSocket.
- Full chat interface with text, voice, and image messaging - Multi-session support with drawer, switching, rename, remove - WebSocket service with dual-URL fallback, heartbeat, auto-reconnect - Voice recording (AAC) with singleton playback and chain play - Navigate screen with terminal screenshot and vim key grid - Settings with server config, Wake-on-LAN - Per-session message persistence with catch_up protocol - Multi-image picker with text or voice captions - Cross-session toast notifications and unread badges - Material 3 dark/light theme, Riverpod state, GoRouter - iOS and Android adaptive icons from PAILot.svg - Build/deploy scripts matching Glidr patterns
