- Add AltBeacon library for native Android beacon scanning
- Create BeaconScanner.kt with 2-second scan duration
- Set up MethodChannel bridge in MainActivity.kt
- Add beacon_channel.dart for Dart/native communication
- Update splash_screen.dart to use native scanner on Android
- Keep dchs_flutter_beacon for iOS compatibility
Native scanner eliminates Flutter plugin warmup overhead.
Beacons broadcast at 200ms, so 2s scan captures ~10 samples.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
