first working version

lib/screens/home_screen.dart

@@ -37,7 +37,7 @@ class HomeScreen extends StatefulWidget {
   State<HomeScreen> createState() => _HomeScreenState();
 }
 
-class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
+class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin, WidgetsBindingObserver {
   final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
   final GlobalKey<MapViewState> _mapViewKey = GlobalKey<MapViewState>();
   late final AnimatedMapController _mapController;
@@ -62,6 +62,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   @override
   void initState() {
     super.initState();
+    WidgetsBinding.instance.addObserver(this);
     _mapController = AnimatedMapController(vsync: this);
     _sheetCoordinator = SheetCoordinator();
     _navigationCoordinator = NavigationCoordinator();
@@ -71,11 +72,24 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
 
   @override
   void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
     DeepLinkService().onNodeDeepLink = null;
     _mapController.dispose();
     super.dispose();
   }
 
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    // Re-check for an active OSM block when the user returns to the app,
+    // in case they resolved it (or got blocked) while away.
+    if (state == AppLifecycleState.resumed) {
+      final appState = context.read<AppState>();
+      if (appState.isLoggedIn) {
+        appState.checkAndPromptForActiveBlock(context);
+      }
+    }
+  }
+
   String _getFollowMeTooltip(FollowMeMode mode) {
     final locService = LocalizationService.instance;
     switch (mode) {
@@ -474,6 +488,10 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
         _checkForPopup();
         // Check if re-authentication is needed for message notifications
         appState.checkAndPromptReauthForMessages(context);
+        // Check for an active OSM block on app launch
+        if (appState.isLoggedIn) {
+          appState.checkAndPromptForActiveBlock(context);
+        }
       });
     }
 
@@ -544,7 +562,9 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
                 return IconButton(
                   tooltip: LocalizationService.instance.settings,
                   icon: Badge(
-                    isLabelVisible: appState.hasUnreadNotifications,
+                    isLabelVisible: appState.hasActiveBlock || appState.hasUnreadNotifications,
+                    backgroundColor: appState.hasActiveBlock ? Colors.red : null,
+                    label: appState.hasActiveBlock ? const Icon(Icons.block, size: 10, color: Colors.white) : null,
                     child: const Icon(Icons.settings),
                   ),
                   onPressed: () => Navigator.pushNamed(context, '/settings'),

lib/screens/osm_account_screen.dart

@@ -17,11 +17,12 @@ class _OSMAccountScreenState extends State<OSMAccountScreen> {
   @override
   void initState() {
     super.initState();
-    // Check for messages when screen loads
+    // Check for messages and active blocks when screen loads
     WidgetsBinding.instance.addPostFrameCallback((_) {
       final appState = context.read<AppState>();
       if (appState.isLoggedIn) {
         appState.checkMessages();
+        appState.checkAndPromptForActiveBlock(context);
       }
     });
   }
@@ -83,13 +84,40 @@ class _OSMAccountScreenState extends State<OSMAccountScreen> {
                     ),
                     
                     if (appState.isLoggedIn) ...[
+                      // Active block warning - shown whenever a check has
+                      // found the user's OSM account currently blocked.
+                      if (appState.hasActiveBlock) ...[
+                        const Divider(),
+                        ListTile(
+                          leading: Badge(
+                            isLabelVisible: true,
+                            backgroundColor: Colors.red,
+                            child: const Icon(Icons.block, color: Colors.red),
+                          ),
+                          title: Text(locService.t('auth.activeBlockTitle')),
+                          subtitle: Text(locService.t('auth.activeBlockMessage')),
+                          trailing: const Icon(Icons.open_in_new),
+                          onTap: () async {
+                            final url = Uri.parse(appState.getMessagesUrl());
+                            if (await canLaunchUrl(url)) {
+                              await launchUrl(url, mode: LaunchMode.externalApplication);
+                            } else {
+                              if (context.mounted) {
+                                ScaffoldMessenger.of(context).showSnackBar(
+                                  SnackBar(content: Text(locService.t('advancedEdit.couldNotOpenOSMWebsite'))),
+                                );
+                              }
+                            }
+                          },
+                        ),
+                      ],
                       const Divider(),
                       ListTile(
                         leading: const Icon(Icons.wifi_protected_setup),
                         title: Text(locService.t('auth.testConnection')),
                         subtitle: Text(locService.t('auth.testConnectionSubtitle')),
                         onTap: () async {
-                          final isValid = await appState.validateToken();
+                          final isValid = await appState.testConnection(context);
                           if (context.mounted) {
                             ScaffoldMessenger.of(context).showSnackBar(
                               SnackBar(

lib/screens/settings/sections/auth_section.dart

@@ -53,7 +53,7 @@ class AuthSection extends StatelessWidget {
                 title: Text(locService.t('auth.testConnection')),
                 subtitle: Text(locService.t('auth.testConnectionSubtitle')),
                 onTap: () async {
-                  final isValid = await appState.validateToken();
+                  final isValid = await appState.testConnection(context);
                   if (context.mounted) {
                     ScaffoldMessenger.of(context).showSnackBar(
                       SnackBar(

lib/screens/settings_screen.dart

@@ -118,7 +118,9 @@ class SettingsScreen extends StatelessWidget {
     
     return ListTile(
       leading: Badge(
-        isLabelVisible: appState.hasUnreadNotifications,
+        isLabelVisible: appState.hasActiveBlock || appState.hasUnreadNotifications,
+        backgroundColor: appState.hasActiveBlock ? Colors.red : null,
+        label: appState.hasActiveBlock ? const Icon(Icons.block, size: 10, color: Colors.white) : null,
         child: const Icon(Icons.account_circle),
       ),
       title: Text(locService.t('auth.osmAccountTitle')),

lib/screens/upload_queue_screen.dart

@@ -111,7 +111,7 @@ class UploadQueueScreen extends StatelessWidget {
         final appState = context.watch<AppState>();
         
         // Check if queue processing is paused
-        final isQueuePaused = appState.offlineMode || appState.pauseQueueProcessing;
+        final isQueuePaused = appState.offlineMode || appState.pauseQueueProcessing || appState.isQueuePausedDueToBlock;
         
         return Scaffold(
           appBar: AppBar(
@@ -151,9 +151,11 @@ class UploadQueueScreen extends StatelessWidget {
                               ),
                             ),
                             Text(
-                              appState.offlineMode 
-                                  ? locService.t('queue.pausedDueToOffline')
-                                  : locService.t('queue.pausedByUser'),
+                              appState.isQueuePausedDueToBlock
+                                  ? locService.t('queue.pausedDueToBlock')
+                                  : appState.offlineMode
+                                      ? locService.t('queue.pausedDueToOffline')
+                                      : locService.t('queue.pausedByUser'),
                               style: TextStyle(
                                 fontSize: 12,
                                 color: Colors.orange.shade700,