add timed out status indicator

lib/widgets/map_view.dart

@@ -9,6 +9,7 @@ import 'package:http/http.dart' as http;
 import '../app_state.dart';
 import '../services/offline_area_service.dart';
 import '../services/simple_tile_service.dart';
+import '../services/network_status.dart';
 import '../models/osm_camera_node.dart';
 import '../models/camera_profile.dart';
 import 'debouncer.dart';
@@ -250,6 +251,9 @@ class MapViewState extends State<MapView> {
                 appState.updateSession(target: pos.center);
               }
               
+              // Show waiting indicator when map moves (user is expecting new content)
+              NetworkStatus.instance.setWaiting();
+              
               // Only clear tile queue on significant ZOOM changes (not panning)
               final currentZoom = pos.zoom;
               final zoomChanged = _lastZoom != null && (currentZoom - _lastZoom!).abs() > 0.5;