Merge pull request 'fix: skip redundant mapController.move() on gesture-driven pans' (#1) from claude/relaxed-wright into main

Reviewed-on: #1

mobile/lib/features/map/presentation/screens/map_screen.dart

@@ -42,10 +42,19 @@ class _MapScreenState extends ConsumerState<MapScreen> {
     final styleAsync = ref.watch(mapStyleProvider(apiClient.baseUrl));
 
     // Listen for zoom/center changes from the provider and move the map.
+    // Skip the move if the map controller is already at the target position
+    // (meaning the state change came from a user gesture via onPositionChanged).
+    // Without this guard, every gesture-driven pan calls _mapController.move()
+    // with the position the map is already at, which triggers a tile
+    // recalculation that cancels in-flight tile loads and produces a
+    // partially-rendered (diagonal) map.
     ref.listen<MapState>(mapProvider, (previous, next) {
       if (previous?.center != next.center || previous?.zoom != next.zoom) {
+        final camera = _mapController.camera;
+        if (camera.center != next.center || camera.zoom != next.zoom) {
           _mapController.move(next.center, next.zoom);
         }
+      }
     });
 
     return Scaffold(