feat: Implement notification and storage services, geofence management, and BLoC for geofence verification

- Add NotificationService for handling local notifications.
- Introduce StorageService for key-value storage using SharedPreferences.
- Create DeviceLocation model to represent geographic locations.
- Define LocationPermissionStatus enum for managing location permissions.
- Implement BackgroundGeofenceService for periodic geofence checks while clocked in.
- Develop GeofenceServiceImpl for geofence proximity verification using LocationService.
- Create GeofenceResult model to encapsulate geofence check results.
- Define GeofenceServiceInterface for geofence service abstraction.
- Implement GeofenceBloc to manage geofence verification and background tracking.
- Create events and states for GeofenceBloc to handle various geofence scenarios.
- Add GeofenceStatusBanner widget to display geofence verification status in the UI.

apps/mobile/packages/core/pubspec.yaml

@@ -27,3 +27,7 @@ dependencies:
   file_picker: ^8.1.7
   record: ^6.2.0
   firebase_auth: ^6.1.4
+  geolocator: ^14.0.2
+  flutter_local_notifications: ^21.0.0
+  shared_preferences: ^2.5.4
+  workmanager: ^0.9.0+3