- Add signing config (reads from env vars)
- Enable R8 minification and resource shrinking
- Expand ProGuard rules for Gson
- Update README with build instructions and Play Store checklist
Exposes phone connection status via HTTP API for tethered devices.
Features:
- Auto-start/stop server when tethering is enabled/disabled
- REST API with /status and /health endpoints
- Connection type, signal strength, carrier, battery info
- Foreground service with persistent notification
Stack: Kotlin 2.3, AGP 8.13, Gradle 8.13, compileSdk 36