feat: Enhance device configuration and location tracking features

- Refetch device info after updating settings in device_config_screen.dart.
- Update map_tab.dart to use singleton instance of LocationTrackingService and streamline location tracking callbacks.
- Modify ble_response_handler.dart to handle contact not found errors and improve error callback structure.
- Enhance location_tracking_service.dart with retry logic for GPS position acquisition and initial position setting without broadcasting.
- Update meshcore_ble_service.dart to track last contact for auto-recovery on errors.
- Improve tile_cache_service.dart error messages and streamline tile download logic.
- Add current GPS location insertion feature in direct_message_sheet.dart with permission checks.
- Update pubspec.lock and pubspec.yaml to include integration_test dependency.
- Add screenshot automation script for iOS and Android devices.
- Create integration test driver for screenshot capturing.

.claude/settings.local.json

@@ -14,7 +14,9 @@
       "Bash(dart:*)",
       "Bash(flutter pub:*)",
       "Bash(flutter clean:*)",
-      "Bash(flutter build:*)"
+      "Bash(flutter build:*)",
+      "Bash(xcrun simctl:*)",
+      "WebFetch(domain:github.com)"
     ],
     "deny": [],
     "ask": []