Replace the dual flavor-specific map implementations (Google Maps in app/src/google,
OSMDroid in app/src/fdroid) with a single Mapbox Maps Compose SDK (v11.21.1)
implementation living in feature:map/androidMain.
- Add Mapbox Maven repo with MAPBOX_DOWNLOADS_TOKEN auth to settings.gradle.kts
- Add mapbox-maps-android, mapbox-maps-compose deps to feature/map/build.gradle.kts
- Remove Google Maps, osmdroid, osmbonuspack deps from app/build.gradle.kts and catalog
- Create unified MapScreen, MapViewModel, MapboxMapContent, GeoJsonConverters,
EditWaypointDialog, InlineMap, NodeTrackMap, NodeMapScreen, TracerouteMap
- Wire all Local*Provider CompositionLocals in MainActivity to new implementations
- Delete ~8200 lines of flavor-specific map code across google/fdroid source sets
- Delete dead MapViewProvider interface from core:ui
- Keep LocalMapMainScreenProvider for KMP/Desktop compatibility boundary
- Fix FlavorModule.kt, KoinVerificationTest.kt for deleted modules
- Pass spotlessCheck + detekt with zero violations
