- Implemented LocationTrackingService to handle GPS tracking, distance thresholds, and location broadcasting.
- Added permission handling, SharedPreferences persistence, and real-time position updates via callbacks.
feat: Introduce MapMarkerService for managing map markers
- Created MapMarkerService to generate contact and SAR markers, calculate distances, and manage marker display.
- Included methods for user location markers and distance/bearing calculations.
feat: Implement ValidationService for input validation and sanitization
- Developed ValidationService to validate coordinates, radio parameters, distances, time intervals, and names.
- Added parse and sanitize methods for common input types, ensuring robust error handling and user feedback.
