Fix contact add failure

lib/models/device_info.dart

@@ -14,9 +14,6 @@ enum ConnectionMode {
   /// Direct BLE connection to MeshCore device (default)
   ble,
 
-  /// Act as SSE server - share BLE device with multiple clients
-  sseServer,
-
   /// Direct TCP/WiFi connection to MeshCore device (port 5000)
   tcp,
 }
@@ -26,8 +23,6 @@ extension ConnectionModeExtension on ConnectionMode {
     switch (this) {
       case ConnectionMode.ble:
         return 'Direct (BLE)';
-      case ConnectionMode.sseServer:
-        return 'Share Device (Server)';
       case ConnectionMode.tcp:
         return 'Direct (WiFi)';
     }
@@ -37,8 +32,6 @@ extension ConnectionModeExtension on ConnectionMode {
     switch (this) {
       case ConnectionMode.ble:
         return 'Direct BLE connection to MeshCore device';
-      case ConnectionMode.sseServer:
-        return 'Share BLE device with multiple clients over network';
       case ConnectionMode.tcp:
         return 'Direct WiFi/TCP connection to MeshCore device';
     }

lib/models/sse_server_config.dart

@@ -1,71 +0,0 @@
-/// SSE Server Configuration Model
-///
-/// Configuration for the SSE (Server-Sent Events) web server that enables
-/// multiple app instances to share a single MeshCore BLE device.
-class SseServerConfig {
-  /// Server bind address (e.g., "0.0.0.0" for all interfaces, "127.0.0.1" for localhost)
-  final String host;
-
-  /// Server port (default: 12929)
-  final int port;
-
-  /// Whether the SSE server is enabled
-  final bool enabled;
-
-  /// Optional authentication token for basic security
-  /// Clients must include this token in Authorization header
-  final String? authToken;
-
-  const SseServerConfig({
-    this.host = '0.0.0.0',
-    this.port = 12929,
-    this.enabled = false,
-    this.authToken,
-  });
-
-  /// Create a copy with updated fields
-  SseServerConfig copyWith({
-    String? host,
-    int? port,
-    bool? enabled,
-    String? authToken,
-  }) {
-    return SseServerConfig(
-      host: host ?? this.host,
-      port: port ?? this.port,
-      enabled: enabled ?? this.enabled,
-      authToken: authToken ?? this.authToken,
-    );
-  }
-
-  /// Get server URL for clients to connect to
-  String getServerUrl({String? ipAddress}) {
-    final ip = ipAddress ?? host;
-    return 'http://$ip:$port';
-  }
-
-  /// Convert to JSON for persistence
-  Map<String, dynamic> toJson() {
-    return {
-      'host': host,
-      'port': port,
-      'enabled': enabled,
-      'authToken': authToken,
-    };
-  }
-
-  /// Create from JSON
-  factory SseServerConfig.fromJson(Map<String, dynamic> json) {
-    return SseServerConfig(
-      host: json['host'] as String? ?? '0.0.0.0',
-      port: json['port'] as int? ?? 12929,
-      enabled: json['enabled'] as bool? ?? false,
-      authToken: json['authToken'] as String?,
-    );
-  }
-
-  @override
-  String toString() {
-    return 'SseServerConfig(host: $host, port: $port, enabled: $enabled, hasAuth: ${authToken != null})';
-  }
-}

lib/providers/app_provider.dart

@@ -948,7 +948,7 @@ class AppProvider with ChangeNotifier {
               contactName: contact.advName.trim().isEmpty
                   ? null
                   : contact.advName,
-                ),
+            ),
           );
         }
         if (contact.type == ContactType.repeater &&
@@ -966,9 +966,6 @@ class AppProvider with ChangeNotifier {
         devicePublicKey: devicePublicKey,
       );
       unawaited(_pathHistoryService.recordLearnedPath(contact));
-
-      // Broadcast to SSE clients if server is running
-      connectionProvider.broadcastContactToSseClients(contact);
     };
 
     // When all contacts are received
@@ -982,11 +979,6 @@ class AppProvider with ChangeNotifier {
         unawaited(_pathHistoryService.recordLearnedPath(contact));
       }
       debugPrint('Received ${contacts.length} contacts');
-
-      // Broadcast all contacts to SSE clients if server is running
-      for (final contact in contacts) {
-        connectionProvider.broadcastContactToSseClients(contact);
-      }
     };
 
     // Setup callback for ConnectionProvider to query channel info
@@ -1212,9 +1204,6 @@ class AppProvider with ChangeNotifier {
             contactLocationSnapshot: contactLocationSnapshot,
             receptionDetailsSnapshot: receptionDetailsSnapshot,
           );
-
-          // Broadcast drawing message to SSE clients if server is running
-          connectionProvider.broadcastMessageToSseClients(updatedMessage);
         } else {
           debugPrint('⚠️ [AppProvider] Failed to parse drawing message');
         }
@@ -1255,7 +1244,6 @@ class AppProvider with ChangeNotifier {
           contactLocationSnapshot: contactLocationSnapshot,
           receptionDetailsSnapshot: receptionDetailsSnapshot,
         );
-        connectionProvider.broadcastMessageToSseClients(enrichedMessage);
         return;
       }
 
@@ -1289,7 +1277,6 @@ class AppProvider with ChangeNotifier {
           contactLocationSnapshot: contactLocationSnapshot,
           receptionDetailsSnapshot: receptionDetailsSnapshot,
         );
-        connectionProvider.broadcastMessageToSseClients(enrichedMessage);
         return;
       }
 
@@ -1314,9 +1301,6 @@ class AppProvider with ChangeNotifier {
         contactLocationSnapshot: contactLocationSnapshot,
         receptionDetailsSnapshot: receptionDetailsSnapshot,
       );
-
-      // Broadcast message to SSE clients if server is running
-      connectionProvider.broadcastMessageToSseClients(enrichedMessage);
     };
 
     // Keep a compact receive-time snapshot because packet logs roll over.
@@ -1353,20 +1337,21 @@ class AppProvider with ChangeNotifier {
     connectionProvider.onRawDataReceived = (payload, snrRaw, rssiDbm) {
       final parsedAdvert = _tryParseRawAdvert(payload);
       if (parsedAdvert != null) {
-        final isNewPendingAdvert = contactsProvider.addOrUpdatePendingAdvertMetadata(
-          publicKey: parsedAdvert.publicKey,
-          typeValue: parsedAdvert.typeValue,
-          devicePublicKey: connectionProvider.deviceInfo.publicKey,
-          flags: parsedAdvert.flags,
-          advName: parsedAdvert.advName,
-          lastAdvert: parsedAdvert.lastAdvert,
-          advLat: parsedAdvert.advLat,
-          advLon: parsedAdvert.advLon,
-          signedEncodedPathLen: parsedAdvert.signedEncodedPathLen,
-          paddedPathBytes: parsedAdvert.paddedPathBytes,
-          rxRssiDbm: rssiDbm,
-          rxSnrRaw: snrRaw,
-        );
+        final isNewPendingAdvert = contactsProvider
+            .addOrUpdatePendingAdvertMetadata(
+              publicKey: parsedAdvert.publicKey,
+              typeValue: parsedAdvert.typeValue,
+              devicePublicKey: connectionProvider.deviceInfo.publicKey,
+              flags: parsedAdvert.flags,
+              advName: parsedAdvert.advName,
+              lastAdvert: parsedAdvert.lastAdvert,
+              advLat: parsedAdvert.advLat,
+              advLon: parsedAdvert.advLon,
+              signedEncodedPathLen: parsedAdvert.signedEncodedPathLen,
+              paddedPathBytes: parsedAdvert.paddedPathBytes,
+              rxRssiDbm: rssiDbm,
+              rxSnrRaw: snrRaw,
+            );
         if (isNewPendingAdvert) {
           final contactKey = parsedAdvert.publicKey
               .map((b) => b.toRadixString(16).padLeft(2, '0'))
@@ -1382,7 +1367,9 @@ class AppProvider with ChangeNotifier {
           unawaited(_requestRepeaterStatus(parsedAdvert.publicKey));
           unawaited(_maybeRequestRepeaterOwnerInfo(parsedAdvert.publicKey));
         }
-        if (contactsProvider.shouldEnrichPendingAdvert(parsedAdvert.publicKey)) {
+        if (contactsProvider.shouldEnrichPendingAdvert(
+          parsedAdvert.publicKey,
+        )) {
           unawaited(connectionProvider.previewContact(parsedAdvert.publicKey));
         }
         return;
@@ -1669,7 +1656,9 @@ class AppProvider with ChangeNotifier {
           unawaited(
             _notificationService.showContactDiscoveredNotification(
               contactKey: keyHex,
-              contactName: contactsProvider.pendingAdvertByKey(publicKey)?.advName,
+              contactName: contactsProvider
+                  .pendingAdvertByKey(publicKey)
+                  ?.advName,
             ),
           );
         }
@@ -2248,10 +2237,9 @@ class AppProvider with ChangeNotifier {
     }
 
     try {
-      final payload = utf8.decode(
-        responseData.sublist(4),
-        allowMalformed: true,
-      ).trim();
+      final payload = utf8
+          .decode(responseData.sublist(4), allowMalformed: true)
+          .trim();
       if (payload.isEmpty) {
         return null;
       }
@@ -2351,10 +2339,9 @@ class AppProvider with ChangeNotifier {
 
       String? advName;
       if (hasName && reader.remainingBytesCount > 0) {
-        final decodedName = utf8.decode(
-          reader.readRemainingBytes(),
-          allowMalformed: true,
-        ).trim();
+        final decodedName = utf8
+            .decode(reader.readRemainingBytes(), allowMalformed: true)
+            .trim();
         if (decodedName.isNotEmpty) {
           advName = decodedName;
         }

lib/providers/connection_provider.dart

@@ -9,9 +9,7 @@ import 'package:crypto/crypto.dart';
 import '../models/contact.dart';
 import '../models/device_info.dart';
 import '../models/room_login_state.dart';
-import '../models/sse_server_config.dart';
 import 'package:meshcore_client/meshcore_client.dart' hide Contact;
-import '../services/sse_server_service.dart';
 import '../utils/sar_message_parser.dart';
 import 'helpers/room_login_manager.dart';
 import 'helpers/message_delivery_tracker.dart';
@@ -73,7 +71,6 @@ class _PendingContactRequest {
 class ConnectionProvider with ChangeNotifier {
   static const int _controlTypeNodeDiscoverReq = 0x80;
   final MeshCoreBleService _bleService = MeshCoreBleService();
-  final SseServerService _sseServer = SseServerService();
   MeshCoreTcpService? _tcpService;
 
   /// Expose BLE service for background location tracking
@@ -89,10 +86,6 @@ class ConnectionProvider with ChangeNotifier {
   ConnectionMode _connectionMode = ConnectionMode.ble;
   ConnectionMode get connectionMode => _connectionMode;
 
-  /// SSE server configuration
-  SseServerConfig _sseServerConfig = const SseServerConfig();
-  SseServerConfig get sseServerConfig => _sseServerConfig;
-
   /// TCP host last connected to (for display / reconnection info)
   String? _tcpHost;
   String? get tcpHost => _tcpHost;
@@ -471,11 +464,6 @@ class ConnectionProvider with ChangeNotifier {
         spectrumScanMaxKhz: deviceInfo['spectrumScanMaxKhz'] as int?,
       );
       notifyListeners();
-      if (_sseServer.isRunning) {
-        _sseServer.setDeviceName(
-          _deviceInfo.deviceName ?? _deviceInfo.selfName,
-        );
-      }
     };
 
     service.onSelfInfoReceived = (selfInfo) {
@@ -495,11 +483,6 @@ class ConnectionProvider with ChangeNotifier {
         selfName: selfInfo['selfName'] as String?,
       );
       notifyListeners();
-      if (_sseServer.isRunning) {
-        _sseServer.setDeviceName(
-          _deviceInfo.deviceName ?? _deviceInfo.selfName,
-        );
-      }
     };
 
     service.onBatteryAndStorage = (millivolts, usedKb, totalKb) {
@@ -857,12 +840,19 @@ class ConnectionProvider with ChangeNotifier {
     }
 
     try {
+      _error = null;
       _markSingleContactRequested(
         publicKey,
         source: ContactReceiveSource.requestedSingle,
       );
       await _activeService.getContactByKey(publicKey);
     } catch (e) {
+      final errorText = e.toString();
+      if (_error == 'Not found' || errorText.contains('Not found')) {
+        _error = 'Not found';
+        notifyListeners();
+        return;
+      }
       _error = 'Failed to get contact: $e';
       debugPrint(
         '⚠️ [Provider] Failed to get contact by key, falling back to full contact sync',
@@ -1360,6 +1350,7 @@ class ConnectionProvider with ChangeNotifier {
     }
 
     try {
+      _error = null;
       await _activeService.addOrUpdateContact(contact);
     } catch (e) {
       _error = 'Failed to add/update contact: $e';
@@ -2578,110 +2569,6 @@ class ConnectionProvider with ChangeNotifier {
     return _roomLoginManager.isLoggedIntoRoom(publicKeyPrefix);
   }
 
-  // ============================================================================
-  // SSE Server Methods
-  // ============================================================================
-
-  /// Start SSE server to share BLE device with multiple clients
-  Future<void> startSseServer(SseServerConfig config) async {
-    if (_sseServer.isRunning) {
-      debugPrint('⚠️ [ConnectionProvider] SSE server already running');
-      return;
-    }
-
-    try {
-      debugPrint('🚀 [ConnectionProvider] Starting SSE server...');
-      _sseServerConfig = config;
-
-      // Wire up callbacks
-      _sseServer.onSendMessage = (recipientPublicKey, text) async {
-        // Convert hex string to Uint8List
-        final bytes = <int>[];
-        for (int i = 0; i < recipientPublicKey.length; i += 2) {
-          bytes.add(
-            int.parse(recipientPublicKey.substring(i, i + 2), radix: 16),
-          );
-        }
-        return await sendTextMessage(
-          contactPublicKey: Uint8List.fromList(bytes),
-          text: text,
-        );
-      };
-
-      _sseServer.onSendChannelMessage = (channelIdx, text) async {
-        await sendChannelMessage(channelIdx: channelIdx, text: text);
-      };
-
-      _sseServer.onSyncContacts = () async {
-        await getContacts();
-      };
-
-      await _sseServer.startServer(config);
-
-      // Set initial device name
-      _sseServer.setDeviceName(_deviceInfo.deviceName ?? _deviceInfo.selfName);
-
-      _connectionMode = ConnectionMode.sseServer;
-      notifyListeners();
-
-      debugPrint('✅ [ConnectionProvider] SSE server started');
-    } catch (e) {
-      _error = 'Failed to start SSE server: $e';
-      debugPrint('❌ [ConnectionProvider] Failed to start SSE server: $e');
-      notifyListeners();
-      rethrow;
-    }
-  }
-
-  /// Stop SSE server
-  Future<void> stopSseServer() async {
-    if (!_sseServer.isRunning) {
-      return;
-    }
-
-    debugPrint('🛑 [ConnectionProvider] Stopping SSE server...');
-    await _sseServer.stopServer();
-
-    if (_connectionMode == ConnectionMode.sseServer) {
-      _connectionMode = ConnectionMode.ble;
-    }
-
-    notifyListeners();
-    debugPrint('✅ [ConnectionProvider] SSE server stopped');
-  }
-
-  /// Broadcast message to SSE clients (call this when receiving messages from BLE)
-  void broadcastMessageToSseClients(Message message) {
-    if (_sseServer.isRunning) {
-      _sseServer.broadcastMessage(message);
-    }
-  }
-
-  /// Broadcast contact to SSE clients (call this when receiving contacts from BLE)
-  void broadcastContactToSseClients(Contact contact) {
-    if (_sseServer.isRunning) {
-      _sseServer.broadcastContact(contact);
-    }
-  }
-
-  /// Get SSE server status
-  bool get isSseServerRunning => _sseServer.isRunning;
-
-  /// Get number of connected SSE clients
-  int get sseClientCount => _sseServer.connectedClients;
-
-  /// Set connection mode
-  void setConnectionMode(ConnectionMode mode) {
-    _connectionMode = mode;
-    notifyListeners();
-  }
-
-  /// Update SSE server configuration
-  void updateSseServerConfig(SseServerConfig config) {
-    _sseServerConfig = config;
-    notifyListeners();
-  }
-
   @override
   void dispose() {
     _rxActivityTimer?.cancel();
@@ -2689,7 +2576,6 @@ class ConnectionProvider with ChangeNotifier {
     _stopAckCleanupTimer();
     _bleService.dispose();
     _tcpService?.dispose();
-    _sseServer.stopServer();
     super.dispose();
   }
 }

lib/screens/discovery_screen.dart

@@ -125,15 +125,29 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
       final connectionProvider = context.read<ConnectionProvider>();
       final contactsProvider = context.read<ContactsProvider>();
 
-      await connectionProvider.getContact(advert.publicKey);
-      if (connectionProvider.error == 'Not found') {
-        connectionProvider.clearError();
-        final fallbackContact = _contactFromPendingAdvert(advert);
-        await connectionProvider.addOrUpdateContact(fallbackContact);
-        contactsProvider.addOrUpdateContact(
-          fallbackContact,
-          devicePublicKey: connectionProvider.deviceInfo.publicKey,
+      final canAddDirectly = _canAddPendingAdvertDirectly(advert);
+      if (canAddDirectly) {
+        final added = await _addPendingAdvertToRadio(
+          advert,
+          connectionProvider: connectionProvider,
+          contactsProvider: contactsProvider,
         );
+        if (!added) {
+          return;
+        }
+      } else {
+        await connectionProvider.getContact(advert.publicKey);
+        if (connectionProvider.error == 'Not found') {
+          connectionProvider.clearError();
+          final added = await _addPendingAdvertToRadio(
+            advert,
+            connectionProvider: connectionProvider,
+            contactsProvider: contactsProvider,
+          );
+          if (!added) {
+            return;
+          }
+        }
       }
       if ((advert.typeValue ?? 0) == _sensorAdvertType) {
         await connectionProvider.requestTelemetry(advert.publicKey);
@@ -200,6 +214,37 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
     );
   }
 
+  bool _canAddPendingAdvertDirectly(PendingAdvert advert) {
+    return advert.publicKey.length == 32 &&
+        advert.typeValue != null &&
+        advert.typeValue != 0;
+  }
+
+  Future<bool> _addPendingAdvertToRadio(
+    PendingAdvert advert, {
+    required ConnectionProvider connectionProvider,
+    required ContactsProvider contactsProvider,
+  }) async {
+    final contact = _contactFromPendingAdvert(advert);
+    await connectionProvider.addOrUpdateContact(contact);
+
+    final addError = connectionProvider.error;
+    if (addError != null) {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text('Failed to add contact: $addError')),
+        );
+      }
+      return false;
+    }
+
+    contactsProvider.addOrUpdateContact(
+      contact,
+      devicePublicKey: connectionProvider.deviceInfo.publicKey,
+    );
+    return true;
+  }
+
   String _displayNameForAdvert(
     PendingAdvert advert,
     ContactsProvider contactsProvider,
@@ -375,207 +420,203 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
       ),
       body: FutureBuilder<List<MeshMapNode>>(
         future: _cachedNodesFuture,
-        builder: (context, nodesSnapshot) =>
-            Consumer2<ContactsProvider, ConnectionProvider>(
-              builder: (context, contactsProvider, connectionProvider, child) {
-                final pendingAdverts = contactsProvider.pendingAdverts;
-                final isConnected = connectionProvider.deviceInfo.isConnected;
-                final cachedNodes = nodesSnapshot.data ?? const <MeshMapNode>[];
+        builder: (context, nodesSnapshot) => Consumer2<ContactsProvider, ConnectionProvider>(
+          builder: (context, contactsProvider, connectionProvider, child) {
+            final pendingAdverts = contactsProvider.pendingAdverts;
+            final isConnected = connectionProvider.deviceInfo.isConnected;
+            final cachedNodes = nodesSnapshot.data ?? const <MeshMapNode>[];
 
-                return ListView(
-                  padding: const EdgeInsets.all(16),
-                  children: [
-                    Card(
-                      child: Padding(
-                        padding: const EdgeInsets.all(16),
-                        child: Column(
-                          crossAxisAlignment: CrossAxisAlignment.start,
+            return ListView(
+              padding: const EdgeInsets.all(16),
+              children: [
+                Card(
+                  child: Padding(
+                    padding: const EdgeInsets.all(16),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Row(
+                          crossAxisAlignment: CrossAxisAlignment.center,
                           children: [
-                            Row(
-                              crossAxisAlignment: CrossAxisAlignment.center,
-                              children: [
-                                const Icon(Icons.person_search),
-                                const SizedBox(width: 12),
-                                Expanded(
-                                  child: Text(
-                                    'Pending discoveries (${pendingAdverts.length})',
-                                    style: Theme.of(context).textTheme.titleMedium,
-                                  ),
-                                ),
-                              ],
-                            ),
-                            const SizedBox(height: 12),
-                            Text(
-                              'Resolve entries manually so they do not auto-populate contacts.',
-                              style: Theme.of(context).textTheme.bodyMedium,
-                            ),
-                            const SizedBox(height: 14),
-                            Row(
-                              children: [
-                                Expanded(
-                                  child: OutlinedButton.icon(
-                                    onPressed: isConnected &&
-                                            pendingAdverts.isNotEmpty &&
-                                            !_isResolvingAll
-                                        ? () => _resolveAll(pendingAdverts)
-                                        : null,
-                                    icon: _isResolvingAll
-                                        ? const SizedBox(
-                                            width: 16,
-                                            height: 16,
-                                            child: CircularProgressIndicator(
-                                              strokeWidth: 2,
-                                            ),
-                                          )
-                                        : const Icon(
-                                            Icons.download_for_offline_outlined,
-                                          ),
-                                    label: const Text('Resolve all'),
-                                  ),
-                                ),
-                                const SizedBox(width: 10),
-                                Expanded(
-                                  child: OutlinedButton.icon(
-                                    onPressed: pendingAdverts.isNotEmpty
-                                        ? _clearAllDiscoveries
-                                        : null,
-                                    icon: const Icon(Icons.clear_all_rounded),
-                                    label: const Text('Clear all'),
-                                  ),
-                                ),
-                              ],
+                            const Icon(Icons.person_search),
+                            const SizedBox(width: 12),
+                            Expanded(
+                              child: Text(
+                                'Pending discoveries (${pendingAdverts.length})',
+                                style: Theme.of(context).textTheme.titleMedium,
+                              ),
                             ),
                           ],
                         ),
-                      ),
-                    ),
-                    const SizedBox(height: 16),
-                    if (pendingAdverts.isEmpty)
-                      Padding(
-                        padding: const EdgeInsets.symmetric(vertical: 48),
-                        child: Column(
-                          children: [
-                            Icon(
-                              Icons.person_search_outlined,
-                              size: 64,
-                              color: Theme.of(context).disabledColor,
-                            ),
-                            const SizedBox(height: 16),
-                            Text(
-                              'No pending discoveries',
-                              style: Theme.of(context).textTheme.titleLarge,
-                            ),
-                            const SizedBox(height: 8),
-                            Text(
-                              'Unknown adverts will appear here until you choose to resolve them.',
-                              textAlign: TextAlign.center,
-                              style: Theme.of(context).textTheme.bodyMedium,
-                            ),
-                          ],
+                        const SizedBox(height: 12),
+                        Text(
+                          'Resolve entries manually so they do not auto-populate contacts.',
+                          style: Theme.of(context).textTheme.bodyMedium,
                         ),
-                      ),
-                    ...pendingAdverts.map((advert) {
-                      final isResolving = _resolvingAdvertKeys.contains(
-                        advert.publicKeyHex,
-                      );
-                      final displayName = _displayNameForAdvert(
-                        advert,
-                        contactsProvider,
-                        cachedNodes,
-                      );
-                      final typeLabel = _resolvedTypeLabelForAdvert(
-                        advert,
-                        cachedNodes,
-                      );
-                      final downMetric = SignalMetric.fromValues(
-                        rssiDbm: advert.rxRssiDbm,
-                        snrDb: advert.rxSnr,
-                      );
-                      final upMetric = SignalMetric.fromValues(
-                        rssiDbm: advert.repeaterLastRssi,
-                        snrDb: advert.repeaterLastSnr,
-                      );
-                      final detailLines = <String>[
-                        '${l10n.publicKey}: ${advert.shortDisplayKey}',
-                      ];
-                      final summaryParts = <String>[];
-                      final battery = advert.repeaterBatteryPercent;
-                      if (battery != null) {
-                        summaryParts.add('Battery ${battery.round()}%');
-                      }
-                      if (advert.repeaterQueueLen != null) {
-                        summaryParts.add('Queue ${advert.repeaterQueueLen}');
-                      }
-                      if (summaryParts.isNotEmpty) {
-                        detailLines.add(summaryParts.join(' • '));
-                      }
-                      detailLines.add(
-                        '${l10n.lastSeen}: ${_formatRelativeTime(context, advert.receivedAt)}',
-                      );
-                      return Card(
-                        margin: const EdgeInsets.only(bottom: 8),
-                        child: Padding(
-                          padding: const EdgeInsets.all(14),
-                          child: Column(
-                            crossAxisAlignment: CrossAxisAlignment.start,
-                            children: [
-                              Row(
-                                crossAxisAlignment: CrossAxisAlignment.center,
-                                children: [
-                                  CircleAvatar(
-                                    child: Icon(_iconForAdvert(advert)),
-                                  ),
-                                  const SizedBox(width: 12),
-                                  Expanded(
-                                    child: _buildAdvertTitle(
-                                      context,
-                                      displayName: displayName,
-                                      subtitle: typeLabel,
-                                    ),
-                                  ),
-                                  if (downMetric != null || upMetric != null) ...[
-                                    const SizedBox(width: 12),
-                                    _buildSignalSummary(
-                                      context,
-                                      downMetric: downMetric,
-                                      upMetric: upMetric,
-                                    ),
-                                  ],
-                                  const SizedBox(width: 8),
-                                  isResolving
-                                      ? const SizedBox(
-                                          width: 18,
-                                          height: 18,
-                                          child: CircularProgressIndicator(
-                                            strokeWidth: 2,
-                                          ),
-                                        )
-                                      : IconButton(
-                                          visualDensity: VisualDensity.compact,
-                                          icon: const Icon(
-                                            Icons.person_add_alt_1,
-                                          ),
-                                          tooltip: 'Resolve contact',
-                                          onPressed: isConnected
-                                              ? () => _resolveAdvert(advert)
-                                              : null,
+                        const SizedBox(height: 14),
+                        Row(
+                          children: [
+                            Expanded(
+                              child: OutlinedButton.icon(
+                                onPressed:
+                                    isConnected &&
+                                        pendingAdverts.isNotEmpty &&
+                                        !_isResolvingAll
+                                    ? () => _resolveAll(pendingAdverts)
+                                    : null,
+                                icon: _isResolvingAll
+                                    ? const SizedBox(
+                                        width: 16,
+                                        height: 16,
+                                        child: CircularProgressIndicator(
+                                          strokeWidth: 2,
                                         ),
-                                ],
+                                      )
+                                    : const Icon(
+                                        Icons.download_for_offline_outlined,
+                                      ),
+                                label: const Text('Resolve all'),
                               ),
-                              const SizedBox(height: 10),
-                              Text(
-                                detailLines.join('\n'),
-                                style: Theme.of(context).textTheme.bodyMedium,
+                            ),
+                            const SizedBox(width: 10),
+                            Expanded(
+                              child: OutlinedButton.icon(
+                                onPressed: pendingAdverts.isNotEmpty
+                                    ? _clearAllDiscoveries
+                                    : null,
+                                icon: const Icon(Icons.clear_all_rounded),
+                                label: const Text('Clear all'),
                               ),
+                            ),
+                          ],
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+                const SizedBox(height: 16),
+                if (pendingAdverts.isEmpty)
+                  Padding(
+                    padding: const EdgeInsets.symmetric(vertical: 48),
+                    child: Column(
+                      children: [
+                        Icon(
+                          Icons.person_search_outlined,
+                          size: 64,
+                          color: Theme.of(context).disabledColor,
+                        ),
+                        const SizedBox(height: 16),
+                        Text(
+                          'No pending discoveries',
+                          style: Theme.of(context).textTheme.titleLarge,
+                        ),
+                        const SizedBox(height: 8),
+                        Text(
+                          'Unknown adverts will appear here until you choose to resolve them.',
+                          textAlign: TextAlign.center,
+                          style: Theme.of(context).textTheme.bodyMedium,
+                        ),
+                      ],
+                    ),
+                  ),
+                ...pendingAdverts.map((advert) {
+                  final isResolving = _resolvingAdvertKeys.contains(
+                    advert.publicKeyHex,
+                  );
+                  final displayName = _displayNameForAdvert(
+                    advert,
+                    contactsProvider,
+                    cachedNodes,
+                  );
+                  final typeLabel = _resolvedTypeLabelForAdvert(
+                    advert,
+                    cachedNodes,
+                  );
+                  final downMetric = SignalMetric.fromValues(
+                    rssiDbm: advert.rxRssiDbm,
+                    snrDb: advert.rxSnr,
+                  );
+                  final upMetric = SignalMetric.fromValues(
+                    rssiDbm: advert.repeaterLastRssi,
+                    snrDb: advert.repeaterLastSnr,
+                  );
+                  final detailLines = <String>[
+                    '${l10n.publicKey}: ${advert.shortDisplayKey}',
+                  ];
+                  final summaryParts = <String>[];
+                  final battery = advert.repeaterBatteryPercent;
+                  if (battery != null) {
+                    summaryParts.add('Battery ${battery.round()}%');
+                  }
+                  if (advert.repeaterQueueLen != null) {
+                    summaryParts.add('Queue ${advert.repeaterQueueLen}');
+                  }
+                  if (summaryParts.isNotEmpty) {
+                    detailLines.add(summaryParts.join(' • '));
+                  }
+                  detailLines.add(
+                    '${l10n.lastSeen}: ${_formatRelativeTime(context, advert.receivedAt)}',
+                  );
+                  return Card(
+                    margin: const EdgeInsets.only(bottom: 8),
+                    child: Padding(
+                      padding: const EdgeInsets.all(14),
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Row(
+                            crossAxisAlignment: CrossAxisAlignment.center,
+                            children: [
+                              CircleAvatar(child: Icon(_iconForAdvert(advert))),
+                              const SizedBox(width: 12),
+                              Expanded(
+                                child: _buildAdvertTitle(
+                                  context,
+                                  displayName: displayName,
+                                  subtitle: typeLabel,
+                                ),
+                              ),
+                              if (downMetric != null || upMetric != null) ...[
+                                const SizedBox(width: 12),
+                                _buildSignalSummary(
+                                  context,
+                                  downMetric: downMetric,
+                                  upMetric: upMetric,
+                                ),
+                              ],
+                              const SizedBox(width: 8),
+                              isResolving
+                                  ? const SizedBox(
+                                      width: 18,
+                                      height: 18,
+                                      child: CircularProgressIndicator(
+                                        strokeWidth: 2,
+                                      ),
+                                    )
+                                  : IconButton(
+                                      visualDensity: VisualDensity.compact,
+                                      icon: const Icon(Icons.person_add_alt_1),
+                                      tooltip: 'Resolve contact',
+                                      onPressed: isConnected
+                                          ? () => _resolveAdvert(advert)
+                                          : null,
+                                    ),
                             ],
                           ),
-                        ),
-                      );
-                    }),
-                  ],
-                );
-              },
-            ),
+                          const SizedBox(height: 10),
+                          Text(
+                            detailLines.join('\n'),
+                            style: Theme.of(context).textTheme.bodyMedium,
+                          ),
+                        ],
+                      ),
+                    ),
+                  );
+                }),
+              ],
+            );
+          },
+        ),
       ),
     );
   }
@@ -629,9 +670,9 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
         const SizedBox(width: 4),
         Text(
           metric.valueLabel,
-          style: Theme.of(context).textTheme.labelSmall?.copyWith(
-            fontWeight: FontWeight.w700,
-          ),
+          style: Theme.of(
+            context,
+          ).textTheme.labelSmall?.copyWith(fontWeight: FontWeight.w700),
         ),
       ],
     );

lib/screens/settings_screen.dart

@@ -31,7 +31,6 @@ import '../utils/image_message_parser.dart';
 import '../utils/voice_message_parser.dart';
 import '../theme/app_theme.dart';
 import '../l10n/app_localizations.dart';
-import '../widgets/connection_mode_selector.dart';
 import '../widgets/update_dialog.dart';
 import 'sar_template_management_screen.dart';
 import 'welcome_wizard_screen.dart';
@@ -1053,7 +1052,6 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 await NotificationService().setSarNotificationsEnabled(value);
               },
             ),
-            SwitchListTile(
             SwitchListTile(
               secondary: const Icon(Icons.contact_page_outlined),
               title: const Text('Discovery notifications'),
@@ -1070,6 +1068,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 );
               },
             ),
+            SwitchListTile(
               secondary: const Icon(Icons.system_update),
               title: const Text('Update notifications'),
               subtitle: const Text(
@@ -1554,11 +1553,6 @@ class _SettingsScreenState extends State<SettingsScreen> {
             ),
           ]),
 
-          if (!kIsWeb) ...[
-            _buildSectionHeader('Network Sharing'),
-            const ConnectionModeSelector(),
-          ],
-
           _buildSectionHeader(AppLocalizations.of(context)!.permissionsSection),
           _buildSettingsCard([
             SwitchListTile(

lib/services/map_marker_service.dart

@@ -42,89 +42,100 @@ class MapMarkerService {
     double mapRotation = 0,
     Position? userPosition,
   }) {
-    return contacts.map((contact) {
-      final location = contact.displayLocation;
-      if (location == null) return null;
+    return contacts
+        .map((contact) {
+          final location = contact.displayLocation;
+          if (location == null) return null;
 
-      return Marker(
-        point: location,
-        width: 80,
-        height: 100,
-        rotate: false, // Don't rotate the entire marker with map
-        child: Transform.rotate(
-          angle: -mapRotation * pi / 180,
-          child: GestureDetector(
-            onTap: onTap != null ? () => onTap(contact) : null,
-            child: Column(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                // Location update time indicator
-                Container(
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
-                  decoration: BoxDecoration(
-                    color: getLocationAgeColor(contact),
-                    borderRadius: BorderRadius.circular(3),
-                  ),
-                  child: Text(
-                    contact.timeSinceLocationUpdate,
-                    style: const TextStyle(
-                      color: Colors.white,
-                      fontSize: 9,
-                      fontWeight: FontWeight.bold,
-                    ),
-                  ),
-                ),
-                const SizedBox(height: 2),
-                // Marker icon
-                Container(
-                  decoration: BoxDecoration(
-                    color: Colors.white,
-                    shape: contact.type == ContactType.channel ||
-                            contact.type == ContactType.room
-                        ? BoxShape.rectangle
-                        : BoxShape.circle,
-                    borderRadius: contact.type == ContactType.channel ||
-                            contact.type == ContactType.room
-                        ? BorderRadius.circular(14)
-                        : null,
-                    boxShadow: [
-                      BoxShadow(
-                        color: Colors.black.withValues(alpha: 0.3),
-                        blurRadius: 4,
-                        offset: const Offset(0, 2),
+          return Marker(
+            point: location,
+            width: 80,
+            height: 100,
+            rotate: false, // Don't rotate the entire marker with map
+            child: Transform.rotate(
+              angle: -mapRotation * pi / 180,
+              child: GestureDetector(
+                onTap: onTap != null ? () => onTap(contact) : null,
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    // Location update time indicator
+                    Container(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 4,
+                        vertical: 1,
+                      ),
+                      decoration: BoxDecoration(
+                        color: getLocationAgeColor(contact),
+                        borderRadius: BorderRadius.circular(3),
+                      ),
+                      child: Text(
+                        contact.timeSinceLocationUpdate,
+                        style: const TextStyle(
+                          color: Colors.white,
+                          fontSize: 9,
+                          fontWeight: FontWeight.bold,
+                        ),
                       ),
-                    ],
-                  ),
-                  padding: const EdgeInsets.all(2),
-                  child: ContactAvatar(contact: contact, radius: 16),
-                ),
-                const SizedBox(height: 2),
-                // Name label (without emoji)
-                Container(
-                  constraints: const BoxConstraints(maxWidth: 80),
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
-                  decoration: BoxDecoration(
-                    color: Colors.black.withValues(alpha: 0.7),
-                    borderRadius: BorderRadius.circular(3),
-                  ),
-                  child: Text(
-                    contact.displayName,
-                    style: const TextStyle(
-                      color: Colors.white,
-                      fontSize: 9,
-                      fontWeight: FontWeight.bold,
                     ),
-                    overflow: TextOverflow.ellipsis,
-                    maxLines: 1,
-                    textAlign: TextAlign.center,
-                  ),
+                    const SizedBox(height: 2),
+                    // Marker icon
+                    Container(
+                      decoration: BoxDecoration(
+                        color: Colors.white,
+                        shape:
+                            contact.type == ContactType.channel ||
+                                contact.type == ContactType.room
+                            ? BoxShape.rectangle
+                            : BoxShape.circle,
+                        borderRadius:
+                            contact.type == ContactType.channel ||
+                                contact.type == ContactType.room
+                            ? BorderRadius.circular(14)
+                            : null,
+                        boxShadow: [
+                          BoxShadow(
+                            color: Colors.black.withValues(alpha: 0.3),
+                            blurRadius: 4,
+                            offset: const Offset(0, 2),
+                          ),
+                        ],
+                      ),
+                      padding: const EdgeInsets.all(2),
+                      child: ContactAvatar(contact: contact, radius: 16),
+                    ),
+                    const SizedBox(height: 2),
+                    // Name label (without emoji)
+                    Container(
+                      constraints: const BoxConstraints(maxWidth: 80),
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 4,
+                        vertical: 1,
+                      ),
+                      decoration: BoxDecoration(
+                        color: Colors.black.withValues(alpha: 0.7),
+                        borderRadius: BorderRadius.circular(3),
+                      ),
+                      child: Text(
+                        contact.displayName,
+                        style: const TextStyle(
+                          color: Colors.white,
+                          fontSize: 9,
+                          fontWeight: FontWeight.bold,
+                        ),
+                        overflow: TextOverflow.ellipsis,
+                        maxLines: 1,
+                        textAlign: TextAlign.center,
+                      ),
+                    ),
+                  ],
                 ),
-              ],
+              ),
             ),
-          ),
-        ),
-      );
-    }).whereType<Marker>().toList();
+          );
+        })
+        .whereType<Marker>()
+        .toList();
   }
 
   /// Generate markers for SAR events.
@@ -157,7 +168,10 @@ class MapMarkerService {
               children: [
                 // Time ago label
                 Container(
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 4,
+                    vertical: 1,
+                  ),
                   decoration: BoxDecoration(
                     color: getSarMarkerColor(marker.type),
                     borderRadius: BorderRadius.circular(3),
@@ -188,7 +202,7 @@ class MapMarkerService {
                   ),
                   padding: const EdgeInsets.all(6),
                   child: Text(
-                    marker.emoji,  // Use custom emoji if available
+                    marker.emoji, // Use custom emoji if available
                     style: const TextStyle(fontSize: 18),
                   ),
                 ),
@@ -196,13 +210,17 @@ class MapMarkerService {
                 // Type label
                 Container(
                   constraints: const BoxConstraints(maxWidth: 90),
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 4,
+                    vertical: 1,
+                  ),
                   decoration: BoxDecoration(
                     color: Colors.black.withValues(alpha: 0.7),
                     borderRadius: BorderRadius.circular(3),
                   ),
                   child: Text(
-                    marker.displayName,  // Uses notes if available, otherwise type.displayName
+                    marker
+                        .displayName, // Uses notes if available, otherwise type.displayName
                     style: const TextStyle(
                       color: Colors.white,
                       fontSize: 9,
@@ -269,7 +287,8 @@ class MapMarkerService {
     final dLat = (lat2 - lat1) * pi / 180;
     final dLon = (lon2 - lon1) * pi / 180;
 
-    final a = sin(dLat / 2) * sin(dLat / 2) +
+    final a =
+        sin(dLat / 2) * sin(dLat / 2) +
         cos(lat1 * pi / 180) *
             cos(lat2 * pi / 180) *
             sin(dLon / 2) *
@@ -299,8 +318,8 @@ class MapMarkerService {
     final lat2Rad = lat2 * pi / 180;
 
     final y = sin(dLon) * cos(lat2Rad);
-    final x = cos(lat1Rad) * sin(lat2Rad) -
-        sin(lat1Rad) * cos(lat2Rad) * cos(dLon);
+    final x =
+        cos(lat1Rad) * sin(lat2Rad) - sin(lat1Rad) * cos(lat2Rad) * cos(dLon);
 
     final bearing = atan2(y, x) * 180 / pi;
     return (bearing + 360) % 360;
@@ -368,6 +387,8 @@ class MapMarkerService {
         return Colors.deepPurple; // Purple for repeaters
       case ContactType.room:
         return Colors.teal; // Teal for rooms
+      case ContactType.sensor:
+        return Colors.green; // Green for sensors
       case ContactType.channel:
         return Colors.orange; // Orange for channels
       case ContactType.none:
@@ -389,6 +410,8 @@ class MapMarkerService {
         return Icons.router; // Router icon for repeaters
       case ContactType.room:
         return Icons.forum; // Forum/chat icon for rooms
+      case ContactType.sensor:
+        return Icons.sensors; // Sensors icon for sensor nodes
       case ContactType.channel:
         return Icons.public; // Public icon for channels
       case ContactType.none:
@@ -466,7 +489,8 @@ class MapMarkerService {
     }
 
     if (allPoints.isEmpty) {
-      return defaultCenter ?? const LatLng(46.0569, 14.5058); // Ljubljana, Slovenia
+      return defaultCenter ??
+          const LatLng(46.0569, 14.5058); // Ljubljana, Slovenia
     }
 
     double lat = 0, lng = 0;

lib/services/sse_server_service.dart

@@ -1,785 +0,0 @@
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-import 'package:flutter/foundation.dart';
-import 'package:shelf/shelf.dart' as shelf;
-import 'package:shelf/shelf_io.dart' as io;
-import 'package:nsd/nsd.dart';
-import '../models/message.dart';
-import '../models/contact.dart';
-import '../models/sse_server_config.dart';
-import 'network_scanner_service.dart';
-
-/// SSE Server Service
-///
-/// Provides a web server with SSE (Server-Sent Events) endpoints for
-/// real-time message and contact updates, enabling multiple app instances
-/// to share a single MeshCore BLE device.
-///
-/// Endpoints:
-/// - GET /sse/messages - SSE stream for message updates
-/// - GET /sse/contacts - SSE stream for contact updates
-/// - POST /api/messages - Send message
-/// - POST /api/messages/channel - Send channel message
-/// - POST /api/contacts/sync - Trigger contact sync
-/// - GET /api/messages/history - Get all messages
-/// - GET /api/contacts - Get all contacts
-/// - GET /api/status - Server health check
-class SseServerService {
-  HttpServer? _server;
-  SseServerConfig? _config;
-  Registration? _bonjourRegistration;
-
-  /// Active SSE connections for messages
-  final Set<StreamController<String>> _messageStreams = {};
-
-  /// Active SSE connections for contacts
-  final Set<StreamController<String>> _contactStreams = {};
-
-  /// Message history (for new clients)
-  final List<Message> _messageHistory = [];
-
-  /// Contact list (for new clients)
-  final Map<String, Contact> _contacts = {};
-
-  /// Timer for cleaning up dead connections
-  Timer? _cleanupTimer;
-
-  /// Device name (for status endpoint)
-  String? _deviceName;
-
-  /// Set device name
-  void setDeviceName(String? name) {
-    _deviceName = name;
-    debugPrint('📝 [SseServer] Device name set to: $name');
-  }
-
-  /// Callback for when a client requests to send a message
-  Future<bool> Function(String recipientPublicKey, String text)? onSendMessage;
-
-  /// Callback for when a client requests to send a channel message
-  Future<void> Function(int channelIdx, String text)? onSendChannelMessage;
-
-  /// Callback for when a client requests contact sync
-  Future<void> Function()? onSyncContacts;
-
-  /// Check if server is running
-  bool get isRunning => _server != null;
-
-  /// Get current configuration
-  SseServerConfig? get config => _config;
-
-  /// Get number of connected clients
-  int get connectedClients => _messageStreams.length;
-
-  /// CORS middleware
-  static shelf.Middleware get _corsHeaders {
-    return shelf.createMiddleware(
-      responseHandler: (shelf.Response response) {
-        return response.change(
-          headers: {
-            'Access-Control-Allow-Origin': '*',
-            'Access-Control-Allow-Methods': 'GET, POST, OPTIONS',
-            'Access-Control-Allow-Headers':
-                'Origin, Content-Type, Authorization',
-          },
-        );
-      },
-    );
-  }
-
-  /// Start the SSE server
-  Future<void> startServer(SseServerConfig config) async {
-    if (_server != null) {
-      debugPrint('⚠️ [SseServer] Server already running');
-      return;
-    }
-
-    _config = config;
-
-    try {
-      debugPrint(
-        '🚀 [SseServer] Starting server on ${config.host}:${config.port}',
-      );
-
-      // Create shelf handler with CORS support
-      final handler = const shelf.Pipeline()
-          .addMiddleware(_corsHeaders)
-          .addMiddleware(shelf.logRequests())
-          .addHandler(_handleRequest);
-
-      // Start HTTP server
-      _server = await io.serve(handler, config.host, config.port);
-
-      debugPrint('✅ [SseServer] Server started on ${config.getServerUrl()}');
-
-      // Start cleanup timer for dead connections
-      _startCleanupTimer();
-
-      // Register Bonjour/mDNS service
-      await _registerBonjourService(config);
-    } catch (e) {
-      debugPrint('❌ [SseServer] Failed to start server: $e');
-      _server = null;
-      rethrow;
-    }
-  }
-
-  /// Register Bonjour/mDNS service for network discovery
-  Future<void> _registerBonjourService(SseServerConfig config) async {
-    try {
-      debugPrint(
-        '📡 [SseServer] Registering Bonjour service ${NetworkScannerService.serviceType}...',
-      );
-
-      _bonjourRegistration = await register(
-        const Service(
-          name: 'MeshCore SSE Server',
-          type: NetworkScannerService.serviceType,
-          port: 0, // Will be set dynamically
-        ),
-      );
-
-      // Update with actual port
-      if (_bonjourRegistration != null) {
-        // Unregister and re-register with correct port
-        await unregister(_bonjourRegistration!);
-        _bonjourRegistration = await register(
-          Service(
-            name: 'MeshCore SSE Server',
-            type: NetworkScannerService.serviceType,
-            port: config.port,
-          ),
-        );
-        debugPrint(
-          '✅ [SseServer] Bonjour service registered on port ${config.port}',
-        );
-      }
-    } catch (e) {
-      debugPrint('⚠️ [SseServer] Failed to register Bonjour service: $e');
-      // Don't throw - server can still work without Bonjour
-    }
-  }
-
-  /// Start cleanup timer to remove dead connections
-  void _startCleanupTimer() {
-    _cleanupTimer?.cancel();
-    _cleanupTimer = Timer.periodic(const Duration(seconds: 60), (timer) {
-      _cleanupDeadConnections();
-    });
-    debugPrint('🧹 [SseServer] Cleanup timer started (60s interval)');
-  }
-
-  /// Clean up dead/closed connections
-  void _cleanupDeadConnections() {
-    // Clean up message streams
-    final deadMessageStreams = _messageStreams
-        .where((s) => s.isClosed)
-        .toList();
-    for (final stream in deadMessageStreams) {
-      _messageStreams.remove(stream);
-    }
-
-    // Clean up contact streams
-    final deadContactStreams = _contactStreams
-        .where((s) => s.isClosed)
-        .toList();
-    for (final stream in deadContactStreams) {
-      _contactStreams.remove(stream);
-    }
-
-    if (deadMessageStreams.isNotEmpty || deadContactStreams.isNotEmpty) {
-      debugPrint(
-        '🧹 [SseServer] Cleaned up ${deadMessageStreams.length} dead message streams, ${deadContactStreams.length} dead contact streams',
-      );
-      debugPrint(
-        '   Active: ${_messageStreams.length} message clients, ${_contactStreams.length} contact clients',
-      );
-    }
-  }
-
-  /// Stop the SSE server
-  Future<void> stopServer() async {
-    if (_server == null) {
-      return;
-    }
-
-    debugPrint('🛑 [SseServer] Stopping server...');
-
-    // Stop cleanup timer
-    _cleanupTimer?.cancel();
-    _cleanupTimer = null;
-
-    // Close all SSE streams
-    for (final stream in _messageStreams) {
-      await stream.close();
-    }
-    _messageStreams.clear();
-
-    for (final stream in _contactStreams) {
-      await stream.close();
-    }
-    _contactStreams.clear();
-
-    // Unregister Bonjour service
-    if (_bonjourRegistration != null) {
-      try {
-        await unregister(_bonjourRegistration!);
-        debugPrint('✅ [SseServer] Bonjour service unregistered');
-      } catch (e) {
-        debugPrint('⚠️ [SseServer] Failed to unregister Bonjour service: $e');
-      }
-      _bonjourRegistration = null;
-    }
-
-    // Close HTTP server
-    await _server!.close(force: true);
-    _server = null;
-    _config = null;
-
-    debugPrint('✅ [SseServer] Server stopped');
-  }
-
-  /// Main request handler
-  Future<shelf.Response> _handleRequest(shelf.Request request) async {
-    // Check authentication if token is configured
-    if (_config?.authToken != null) {
-      final authHeader = request.headers['authorization'];
-      if (authHeader != 'Bearer ${_config!.authToken}') {
-        return shelf.Response.forbidden('Invalid authentication token');
-      }
-    }
-
-    final path = request.url.path;
-    final method = request.method;
-
-    debugPrint('📨 [SseServer] $method /$path');
-
-    // Route requests
-    if (method == 'GET' && path == 'sse/messages') {
-      return _handleSseMessages(request);
-    } else if (method == 'GET' && path == 'sse/contacts') {
-      return _handleSseContacts(request);
-    } else if (method == 'POST' && path == 'api/messages') {
-      return _handlePostMessage(request);
-    } else if (method == 'POST' && path == 'api/messages/channel') {
-      return _handlePostChannelMessage(request);
-    } else if (method == 'POST' && path == 'api/contacts/sync') {
-      return _handlePostContactsSync(request);
-    } else if (method == 'GET' && path == 'api/messages/history') {
-      return _handleGetMessageHistory(request);
-    } else if (method == 'GET' && path == 'api/contacts') {
-      return _handleGetContacts(request);
-    } else if (method == 'GET' && path == 'api/status') {
-      return _handleGetStatus(request);
-    } else if (method == 'GET' && path == '') {
-      return _handleRoot(request);
-    }
-
-    return shelf.Response.notFound('Not found');
-  }
-
-  /// Handle SSE messages stream
-  shelf.Response _handleSseMessages(shelf.Request request) {
-    return request.hijack((channel) async {
-      debugPrint(
-        '📥 [SseServer] New SSE client connected (messages) via hijack',
-      );
-
-      // Set up the sink for sending data
-      final sink = utf8.encoder.startChunkedConversion(channel.sink);
-
-      // Send SSE headers
-      sink.add('HTTP/1.1 200 OK\r\n');
-      sink.add('Content-Type: text/event-stream\r\n');
-      sink.add('Cache-Control: no-cache\r\n');
-      sink.add('Connection: keep-alive\r\n');
-      sink.add('\r\n');
-
-      // Create controller for this connection
-      final controller = StreamController<String>();
-      _messageStreams.add(controller);
-
-      debugPrint('   Total clients: ${_messageStreams.length}');
-
-      // Send initial connection event
-      sink.add(': connected\n\n');
-
-      // Send initial message history
-      for (final message in _messageHistory) {
-        final event = _formatSseEvent('message', _messageToJson(message));
-        sink.add(event);
-      }
-
-      // Start keep-alive timer
-      final keepAliveTimer = Timer.periodic(const Duration(seconds: 30), (
-        timer,
-      ) {
-        try {
-          sink.add(': keepalive\n\n');
-        } catch (e) {
-          debugPrint('⚠️ [SseServer] Keep-alive failed: $e');
-          timer.cancel();
-        }
-      });
-
-      // Listen to controller for new messages to broadcast
-      final subscription = controller.stream.listen(
-        (data) {
-          try {
-            sink.add(data);
-          } catch (e) {
-            debugPrint('⚠️ [SseServer] Failed to send data: $e');
-          }
-        },
-        onDone: () {
-          debugPrint('📤 [SseServer] Controller stream closed');
-        },
-      );
-
-      // Wait for channel to close
-      await channel.stream.drain();
-
-      // Cleanup
-      keepAliveTimer.cancel();
-      await subscription.cancel();
-      _messageStreams.remove(controller);
-      await controller.close();
-
-      debugPrint('📤 [SseServer] SSE client disconnected (messages)');
-      debugPrint('   Total clients: ${_messageStreams.length}');
-    });
-  }
-
-  /// Handle SSE contacts stream
-  shelf.Response _handleSseContacts(shelf.Request request) {
-    return request.hijack((channel) async {
-      debugPrint(
-        '📥 [SseServer] New SSE client connected (contacts) via hijack',
-      );
-
-      // Set up the sink for sending data
-      final sink = utf8.encoder.startChunkedConversion(channel.sink);
-
-      // Send SSE headers
-      sink.add('HTTP/1.1 200 OK\r\n');
-      sink.add('Content-Type: text/event-stream\r\n');
-      sink.add('Cache-Control: no-cache\r\n');
-      sink.add('Connection: keep-alive\r\n');
-      sink.add('\r\n');
-
-      // Create controller for this connection
-      final controller = StreamController<String>();
-      _contactStreams.add(controller);
-
-      debugPrint('   Total clients: ${_contactStreams.length}');
-
-      // Send initial connection event
-      sink.add(': connected\n\n');
-
-      // Send initial contact list
-      for (final contact in _contacts.values) {
-        final event = _formatSseEvent('contact', _contactToJson(contact));
-        sink.add(event);
-      }
-
-      // Start keep-alive timer
-      final keepAliveTimer = Timer.periodic(const Duration(seconds: 30), (
-        timer,
-      ) {
-        try {
-          sink.add(': keepalive\n\n');
-        } catch (e) {
-          debugPrint('⚠️ [SseServer] Keep-alive failed: $e');
-          timer.cancel();
-        }
-      });
-
-      // Listen to controller for new messages to broadcast
-      final subscription = controller.stream.listen(
-        (data) {
-          try {
-            sink.add(data);
-          } catch (e) {
-            debugPrint('⚠️ [SseServer] Failed to send data: $e');
-          }
-        },
-        onDone: () {
-          debugPrint('📤 [SseServer] Controller stream closed');
-        },
-      );
-
-      // Wait for channel to close
-      await channel.stream.drain();
-
-      // Cleanup
-      keepAliveTimer.cancel();
-      await subscription.cancel();
-      _contactStreams.remove(controller);
-      await controller.close();
-
-      debugPrint('📤 [SseServer] SSE client disconnected (contacts)');
-      debugPrint('   Total clients: ${_contactStreams.length}');
-    });
-  }
-
-  /// Handle POST message request
-  Future<shelf.Response> _handlePostMessage(shelf.Request request) async {
-    try {
-      final body = await request.readAsString();
-      final json = jsonDecode(body) as Map<String, dynamic>;
-
-      final recipientPublicKey = json['recipientPublicKey'] as String;
-      final text = json['text'] as String;
-
-      if (onSendMessage == null) {
-        return shelf.Response.internalServerError(
-          body: jsonEncode({'error': 'Send message callback not configured'}),
-        );
-      }
-
-      final success = await onSendMessage!(recipientPublicKey, text);
-
-      return shelf.Response.ok(
-        jsonEncode({'success': success}),
-        headers: {'content-type': 'application/json'},
-      );
-    } catch (e) {
-      debugPrint('❌ [SseServer] Error handling POST message: $e');
-      return shelf.Response.internalServerError(
-        body: jsonEncode({'error': e.toString()}),
-      );
-    }
-  }
-
-  /// Handle POST channel message request
-  Future<shelf.Response> _handlePostChannelMessage(
-    shelf.Request request,
-  ) async {
-    try {
-      final body = await request.readAsString();
-      final json = jsonDecode(body) as Map<String, dynamic>;
-
-      final channelIdx = json['channelIdx'] as int;
-      final text = json['text'] as String;
-
-      if (onSendChannelMessage == null) {
-        return shelf.Response.internalServerError(
-          body: jsonEncode({
-            'error': 'Send channel message callback not configured',
-          }),
-        );
-      }
-
-      await onSendChannelMessage!(channelIdx, text);
-
-      return shelf.Response.ok(
-        jsonEncode({'success': true}),
-        headers: {'content-type': 'application/json'},
-      );
-    } catch (e) {
-      debugPrint('❌ [SseServer] Error handling POST channel message: $e');
-      return shelf.Response.internalServerError(
-        body: jsonEncode({'error': e.toString()}),
-      );
-    }
-  }
-
-  /// Handle POST contacts sync request
-  Future<shelf.Response> _handlePostContactsSync(shelf.Request request) async {
-    try {
-      if (onSyncContacts == null) {
-        return shelf.Response.internalServerError(
-          body: jsonEncode({'error': 'Sync contacts callback not configured'}),
-        );
-      }
-
-      await onSyncContacts!();
-
-      return shelf.Response.ok(
-        jsonEncode({'success': true}),
-        headers: {'content-type': 'application/json'},
-      );
-    } catch (e) {
-      debugPrint('❌ [SseServer] Error handling POST contacts sync: $e');
-      return shelf.Response.internalServerError(
-        body: jsonEncode({'error': e.toString()}),
-      );
-    }
-  }
-
-  /// Handle GET message history request
-  shelf.Response _handleGetMessageHistory(shelf.Request request) {
-    final messages = _messageHistory.map(_messageToJson).toList();
-    return shelf.Response.ok(
-      jsonEncode({'messages': messages}),
-      headers: {'content-type': 'application/json'},
-    );
-  }
-
-  /// Handle GET contacts request
-  shelf.Response _handleGetContacts(shelf.Request request) {
-    final contacts = _contacts.values.map(_contactToJson).toList();
-    return shelf.Response.ok(
-      jsonEncode({'contacts': contacts}),
-      headers: {'content-type': 'application/json'},
-    );
-  }
-
-  /// Handle GET status request
-  shelf.Response _handleGetStatus(shelf.Request request) {
-    return shelf.Response.ok(
-      jsonEncode({
-        'status': 'running',
-        'connectedClients': connectedClients,
-        'messageCount': _messageHistory.length,
-        'contactCount': _contacts.length,
-        'deviceName': _deviceName,
-      }),
-      headers: {'content-type': 'application/json'},
-    );
-  }
-
-  /// Handle root request (landing page)
-  shelf.Response _handleRoot(shelf.Request request) {
-    final html = '''
-<!DOCTYPE html>
-<html>
-<head>
-  <title>MeshCore SAR - SSE Server</title>
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <style>
-    body { font-family: sans-serif; margin: 40px; background: #f5f5f5; }
-    .container { max-width: 600px; margin: 0 auto; background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
-    h1 { color: #333; }
-    .status { background: #4CAF50; color: white; padding: 10px; border-radius: 4px; margin: 20px 0; }
-    .endpoint { background: #f9f9f9; padding: 10px; margin: 10px 0; border-left: 3px solid #2196F3; font-family: monospace; }
-    code { background: #eee; padding: 2px 6px; border-radius: 3px; }
-  </style>
-</head>
-<body>
-  <div class="container">
-    <h1>🚀 MeshCore SAR Server</h1>
-    <div class="status">✅ Server is running</div>
-    <p>This server enables multiple MeshCore SAR clients to share a single BLE device.</p>
-
-    <h2>📡 SSE Endpoints</h2>
-    <div class="endpoint">GET /sse/messages</div>
-    <div class="endpoint">GET /sse/contacts</div>
-
-    <h2>🔧 API Endpoints</h2>
-    <div class="endpoint">POST /api/messages</div>
-    <div class="endpoint">POST /api/messages/channel</div>
-    <div class="endpoint">POST /api/contacts/sync</div>
-    <div class="endpoint">GET /api/messages/history</div>
-    <div class="endpoint">GET /api/contacts</div>
-    <div class="endpoint">GET /api/status</div>
-
-    <h2>📊 Stats</h2>
-    <p>Connected clients: <strong id="clients">Loading...</strong></p>
-    <p>Messages: <strong id="messages">Loading...</strong></p>
-    <p>Contacts: <strong id="contacts">Loading...</strong></p>
-  </div>
-
-  <script>
-    async function updateStats() {
-      try {
-        const res = await fetch('/api/status');
-        const data = await res.json();
-        document.getElementById('clients').textContent = data.connectedClients;
-        document.getElementById('messages').textContent = data.messageCount;
-        document.getElementById('contacts').textContent = data.contactCount;
-      } catch (e) {
-        console.error('Failed to fetch stats:', e);
-      }
-    }
-    updateStats();
-    setInterval(updateStats, 5000);
-  </script>
-</body>
-</html>
-''';
-    return shelf.Response.ok(html, headers: {'content-type': 'text/html'});
-  }
-
-  /// Broadcast a new message to all SSE clients
-  void broadcastMessage(Message message) {
-    // Add to history (limit to 1000 messages)
-    _messageHistory.add(message);
-    if (_messageHistory.length > 1000) {
-      _messageHistory.removeAt(0);
-    }
-
-    // Broadcast to all connected clients
-    final event = _formatSseEvent('message', _messageToJson(message));
-    final deadStreams = <StreamController<String>>[];
-
-    for (final stream in _messageStreams) {
-      if (stream.isClosed) {
-        deadStreams.add(stream);
-      } else {
-        try {
-          stream.add(event);
-        } catch (e) {
-          debugPrint(
-            '⚠️ [SseServer] Failed to send to stream, marking as dead: $e',
-          );
-          deadStreams.add(stream);
-        }
-      }
-    }
-
-    // Remove dead streams
-    for (final stream in deadStreams) {
-      _messageStreams.remove(stream);
-      stream.close().catchError(
-        (e) => debugPrint('⚠️ [SseServer] Error closing dead stream: $e'),
-      );
-    }
-
-    if (deadStreams.isNotEmpty) {
-      debugPrint(
-        '🧹 [SseServer] Removed ${deadStreams.length} dead message streams during broadcast',
-      );
-    }
-
-    debugPrint(
-      '📢 [SseServer] Broadcasted message to ${_messageStreams.length} clients',
-    );
-  }
-
-  /// Broadcast a new or updated contact to all SSE clients
-  void broadcastContact(Contact contact) {
-    // Update contact list
-    _contacts[contact.publicKeyHex] = contact;
-
-    // Broadcast to all connected clients
-    final event = _formatSseEvent('contact', _contactToJson(contact));
-    final deadStreams = <StreamController<String>>[];
-
-    for (final stream in _contactStreams) {
-      if (stream.isClosed) {
-        deadStreams.add(stream);
-      } else {
-        try {
-          stream.add(event);
-        } catch (e) {
-          debugPrint(
-            '⚠️ [SseServer] Failed to send to stream, marking as dead: $e',
-          );
-          deadStreams.add(stream);
-        }
-      }
-    }
-
-    // Remove dead streams
-    for (final stream in deadStreams) {
-      _contactStreams.remove(stream);
-      stream.close().catchError(
-        (e) => debugPrint('⚠️ [SseServer] Error closing dead stream: $e'),
-      );
-    }
-
-    if (deadStreams.isNotEmpty) {
-      debugPrint(
-        '🧹 [SseServer] Removed ${deadStreams.length} dead contact streams during broadcast',
-      );
-    }
-
-    debugPrint(
-      '📢 [SseServer] Broadcasted contact to ${_contactStreams.length} clients',
-    );
-  }
-
-  /// Format SSE event
-  String _formatSseEvent(String eventType, Map<String, dynamic> data) {
-    final jsonData = jsonEncode(data);
-    return 'event: $eventType\ndata: $jsonData\n\n';
-  }
-
-  /// Convert Message to JSON
-  Map<String, dynamic> _messageToJson(Message message) {
-    return {
-      'id': message.id,
-      'messageType': message.messageType.name,
-      'senderPublicKeyPrefix': message.senderPublicKeyPrefix?.toList(),
-      'channelIdx': message.channelIdx,
-      'pathLen': message.pathLen,
-      'textType': message.textType.value,
-      'senderTimestamp': message.senderTimestamp,
-      'text': message.text,
-      'isSarMarker': message.isSarMarker,
-      'sarGpsCoordinates': message.sarGpsCoordinates != null
-          ? {
-              'latitude': message.sarGpsCoordinates!.latitude,
-              'longitude': message.sarGpsCoordinates!.longitude,
-            }
-          : null,
-      'sarNotes': message.sarNotes,
-      'sarCustomEmoji': message.sarCustomEmoji,
-      'sarColorIndex': message.sarColorIndex,
-      'receivedAt': message.receivedAt.toIso8601String(),
-      'senderName': message.senderName,
-      'deliveryStatus': message.deliveryStatus.name,
-      'expectedAckTag': message.expectedAckTag,
-      'suggestedTimeoutMs': message.suggestedTimeoutMs,
-      'roundTripTimeMs': message.roundTripTimeMs,
-      'deliveredAt': message.deliveredAt?.toIso8601String(),
-      'recipientPublicKey': message.recipientPublicKey?.toList(),
-      'retryAttempt': message.retryAttempt,
-      'lastRetryAt': message.lastRetryAt?.toIso8601String(),
-      'usedFloodFallback': message.usedFloodFallback,
-      'isRead': message.isRead,
-      'echoCount': message.echoCount,
-      'firstEchoAt': message.firstEchoAt?.toIso8601String(),
-      'lastEchoSnrRaw': message.lastEchoSnrRaw,
-      'lastEchoRssiDbm': message.lastEchoRssiDbm,
-      'lastEchoAt': message.lastEchoAt?.toIso8601String(),
-      'isDrawing': message.isDrawing,
-      'drawingId': message.drawingId,
-    };
-  }
-
-  /// Convert Contact to JSON
-  Map<String, dynamic> _contactToJson(Contact contact) {
-    return {
-      'publicKey': contact.publicKey.toList(),
-      'publicKeyHex': contact.publicKeyHex,
-      'type': contact.type.value,
-      'flags': contact.flags,
-      'outPathLen': contact.outPathLen,
-      'outPath': contact.outPath.toList(),
-      'advName': contact.advName,
-      'lastAdvert': contact.lastAdvert,
-      'advLat': contact.advLat,
-      'advLon': contact.advLon,
-      'lastMod': contact.lastMod,
-      'telemetry': contact.telemetry != null
-          ? {
-              'batteryPercentage': contact.telemetry!.batteryPercentage,
-              'batteryMilliVolts': contact.telemetry!.batteryMilliVolts,
-              'temperature': contact.telemetry!.temperature,
-              'humidity': contact.telemetry!.humidity,
-              'pressure': contact.telemetry!.pressure,
-              'gpsLocation': contact.telemetry!.gpsLocation != null
-                  ? {
-                      'latitude': contact.telemetry!.gpsLocation!.latitude,
-                      'longitude': contact.telemetry!.gpsLocation!.longitude,
-                    }
-                  : null,
-              'timestamp': contact.telemetry!.timestamp.toIso8601String(),
-            }
-          : null,
-    };
-  }
-
-  /// Clear message history
-  void clearMessageHistory() {
-    _messageHistory.clear();
-  }
-
-  /// Clear contact list
-  void clearContacts() {
-    _contacts.clear();
-  }
-}

lib/widgets/connection_mode_selector.dart

@@ -1,160 +0,0 @@
-import 'dart:io';
-import 'package:flutter/foundation.dart' show kIsWeb;
-import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-import 'package:provider/provider.dart';
-import '../providers/connection_provider.dart';
-import '../models/sse_server_config.dart';
-
-/// Connection Mode Selector Widget
-///
-/// Allows user to enable/disable SSE Server mode to share device with multiple clients
-class ConnectionModeSelector extends StatefulWidget {
-  const ConnectionModeSelector({super.key});
-
-  @override
-  State<ConnectionModeSelector> createState() => _ConnectionModeSelectorState();
-}
-
-class _ConnectionModeSelectorState extends State<ConnectionModeSelector> {
-  List<String> _localIPs = [];
-
-  @override
-  void initState() {
-    super.initState();
-    _loadLocalIPs();
-  }
-
-  Future<void> _loadLocalIPs() async {
-    if (kIsWeb) {
-      return;
-    }
-
-    final Set<String> ipsSet = {};
-
-    try {
-      final interfaces = await NetworkInterface.list();
-      for (final interface in interfaces) {
-        for (final addr in interface.addresses) {
-          if (addr.type == InternetAddressType.IPv4 && !addr.isLoopback) {
-            ipsSet.add(addr.address);
-          }
-        }
-      }
-    } catch (e) {
-      debugPrint('Error getting network interfaces: $e');
-    }
-
-    if (mounted) {
-      setState(() {
-        _localIPs = ipsSet.toList();
-      });
-    }
-  }
-
-  @override
-  void dispose() {
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final connectionProvider = Provider.of<ConnectionProvider>(context);
-
-    return Column(
-      crossAxisAlignment: CrossAxisAlignment.start,
-      children: [
-        // Section Header
-        Padding(
-          padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
-          child: Text(
-            'Network Sharing',
-            style: Theme.of(context).textTheme.titleMedium?.copyWith(
-              color: Theme.of(context).colorScheme.primary,
-              fontWeight: FontWeight.bold,
-            ),
-          ),
-        ),
-
-        // SSE Server Toggle
-        SwitchListTile(
-          secondary: const Icon(Icons.share),
-          title: const Text('Share Device (Server)'),
-          subtitle: Text(
-            connectionProvider.isSseServerRunning
-                ? 'Server running on port ${connectionProvider.sseServerConfig.port} - ${connectionProvider.sseClientCount} client(s) connected'
-                : 'Share BLE device with multiple clients over network',
-          ),
-          value: connectionProvider.isSseServerRunning,
-          onChanged: (enabled) async {
-            if (enabled) {
-              // Start server with default config (port 12929, no auth)
-              final config = const SseServerConfig(port: 12929, enabled: true);
-
-              try {
-                await connectionProvider.startSseServer(config);
-                if (context.mounted) {
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    const SnackBar(
-                      content: Text('SSE server started on port 12929'),
-                      backgroundColor: Colors.green,
-                    ),
-                  );
-                }
-              } catch (e) {
-                if (context.mounted) {
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    SnackBar(
-                      content: Text('Failed to start server: $e'),
-                      backgroundColor: Colors.red,
-                    ),
-                  );
-                }
-              }
-            } else {
-              // Stop server
-              await connectionProvider.stopSseServer();
-            }
-          },
-        ),
-
-        // Show IP addresses when server is running
-        if (connectionProvider.isSseServerRunning && _localIPs.isNotEmpty) ...[
-          Padding(
-            padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
-            child: Text(
-              'Connect from other devices:',
-              style: Theme.of(context).textTheme.titleSmall?.copyWith(
-                color: Theme.of(context).colorScheme.primary,
-              ),
-            ),
-          ),
-          ..._localIPs.map((ip) {
-            final url = 'http://$ip:${connectionProvider.sseServerConfig.port}';
-            return ListTile(
-              dense: true,
-              leading: const Icon(Icons.wifi, size: 20),
-              title: Text(
-                url,
-                style: const TextStyle(fontFamily: 'monospace', fontSize: 13),
-              ),
-              trailing: IconButton(
-                icon: const Icon(Icons.copy, size: 20),
-                tooltip: 'Copy URL',
-                onPressed: () {
-                  Clipboard.setData(ClipboardData(text: url));
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    SnackBar(
-                      content: Text('Copied $url'),
-                      duration: const Duration(seconds: 1),
-                    ),
-                  );
-                },
-              ),
-            );
-          }),
-        ],
-      ],
-    );
-  }
-}

lib/widgets/contacts/room_login_sheet.dart

@@ -147,6 +147,10 @@ class _RoomLoginSheetState extends State<RoomLoginSheet> {
           try {
             // Manually add the room contact to the radio's flash storage
             await connectionProvider.addOrUpdateContact(widget.contact);
+            final addError = connectionProvider.error;
+            if (addError != null) {
+              throw Exception(addError);
+            }
 
             debugPrint(
               '✅ [RoomLogin] Room contact added via CMD_ADD_UPDATE_CONTACT',

lib/widgets/map/compass/compass_contact_list.dart

@@ -42,6 +42,7 @@ class CompassContactList extends StatelessWidget {
     // Split contacts by type
     final persons = <Map<String, dynamic>>[];
     final repeaters = <Map<String, dynamic>>[];
+    final sensors = <Map<String, dynamic>>[];
     final rooms = <Map<String, dynamic>>[];
 
     // Calculate bearings and distances for each contact
@@ -70,6 +71,8 @@ class CompassContactList extends StatelessWidget {
 
       if (contact.isRepeater) {
         repeaters.add(item);
+      } else if (contact.isSensor) {
+        sensors.add(item);
       } else if (contact.isRoom) {
         rooms.add(item);
       } else {
@@ -78,9 +81,18 @@ class CompassContactList extends StatelessWidget {
     }
 
     // Sort each list by distance
-    persons.sort((a, b) => (a['distance'] as double).compareTo(b['distance'] as double));
-    repeaters.sort((a, b) => (a['distance'] as double).compareTo(b['distance'] as double));
-    rooms.sort((a, b) => (a['distance'] as double).compareTo(b['distance'] as double));
+    persons.sort(
+      (a, b) => (a['distance'] as double).compareTo(b['distance'] as double),
+    );
+    repeaters.sort(
+      (a, b) => (a['distance'] as double).compareTo(b['distance'] as double),
+    );
+    sensors.sort(
+      (a, b) => (a['distance'] as double).compareTo(b['distance'] as double),
+    );
+    rooms.sort(
+      (a, b) => (a['distance'] as double).compareTo(b['distance'] as double),
+    );
 
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
@@ -91,17 +103,34 @@ class CompassContactList extends StatelessWidget {
             padding: const EdgeInsets.only(left: 16, bottom: 8, top: 4),
             child: Text(
               l10n.teamMembers,
-              style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                    fontWeight: FontWeight.bold,
-                  ),
+              style: Theme.of(
+                context,
+              ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
             ),
           ),
-          ...persons.map((item) => _buildContactTile(
+          ...persons.map(
+            (item) => _buildContactTile(
+              context,
+              item,
+              Icons.groups,
+              Theme.of(context).colorScheme.primary,
+            ),
+          ),
+        ],
+        if (showContacts && sensors.isNotEmpty) ...[
+          Padding(
+            padding: const EdgeInsets.only(left: 16, bottom: 8, top: 12),
+            child: Text(
+              'Sensors',
+              style: Theme.of(
                 context,
-                item,
-                Icons.groups,
-                Theme.of(context).colorScheme.primary,
-              )),
+              ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
+            ),
+          ),
+          ...sensors.map(
+            (item) =>
+                _buildContactTile(context, item, Icons.sensors, Colors.green),
+          ),
         ],
         // Repeaters section
         if (showRepeaters && repeaters.isNotEmpty) ...[
@@ -109,17 +138,15 @@ class CompassContactList extends StatelessWidget {
             padding: const EdgeInsets.only(left: 16, bottom: 8, top: 12),
             child: Text(
               l10n.repeaters,
-              style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                    fontWeight: FontWeight.bold,
-                  ),
+              style: Theme.of(
+                context,
+              ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
             ),
           ),
-          ...repeaters.map((item) => _buildContactTile(
-                context,
-                item,
-                Icons.router,
-                Colors.purple,
-              )),
+          ...repeaters.map(
+            (item) =>
+                _buildContactTile(context, item, Icons.router, Colors.purple),
+          ),
         ],
         // Rooms section
         if (rooms.isNotEmpty) ...[
@@ -127,17 +154,19 @@ class CompassContactList extends StatelessWidget {
             padding: const EdgeInsets.only(left: 16, bottom: 8, top: 12),
             child: Text(
               l10n.rooms,
-              style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                    fontWeight: FontWeight.bold,
-                  ),
+              style: Theme.of(
+                context,
+              ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
+            ),
+          ),
+          ...rooms.map(
+            (item) => _buildContactTile(
+              context,
+              item,
+              Icons.meeting_room,
+              Colors.teal,
             ),
           ),
-          ...rooms.map((item) => _buildContactTile(
-                context,
-                item,
-                Icons.meeting_room,
-                Colors.teal,
-              )),
         ],
       ],
     );
@@ -161,24 +190,14 @@ class CompassContactList extends StatelessWidget {
             : Theme.of(context).colorScheme.surfaceContainerHighest,
         borderRadius: BorderRadius.circular(8),
         border: selectedContact == contact
-            ? Border.all(
-                color: Theme.of(context).colorScheme.primary,
-                width: 2,
-              )
+            ? Border.all(color: Theme.of(context).colorScheme.primary, width: 2)
             : null,
       ),
       child: ListTile(
         dense: true,
         leading: contact.roleEmoji != null
-            ? Text(
-                contact.roleEmoji!,
-                style: const TextStyle(fontSize: 24),
-              )
-            : Icon(
-                defaultIcon,
-                color: iconColor,
-                size: 24,
-              ),
+            ? Text(contact.roleEmoji!, style: const TextStyle(fontSize: 24))
+            : Icon(defaultIcon, color: iconColor, size: 24),
         title: Text(contact.displayName),
         subtitle: Text(
           '${_bearingToCardinal(bearing)} • ${_formatDistance(distance)}',
@@ -190,16 +209,16 @@ class CompassContactList extends StatelessWidget {
           children: [
             Text(
               '${bearing.round()}°',
-              style: Theme.of(context).textTheme.bodySmall?.copyWith(
-                    fontWeight: FontWeight.bold,
-                  ),
+              style: Theme.of(
+                context,
+              ).textTheme.bodySmall?.copyWith(fontWeight: FontWeight.bold),
             ),
             if (heading != null)
               Text(
                 _formatRelativeBearing(bearing, heading!, context),
-                style: Theme.of(context).textTheme.labelSmall?.copyWith(
-                      color: Colors.grey,
-                    ),
+                style: Theme.of(
+                  context,
+                ).textTheme.labelSmall?.copyWith(color: Colors.grey),
               ),
           ],
         ),
@@ -217,15 +236,14 @@ class CompassContactList extends StatelessWidget {
   }
 
   // Calculate bearing between two points (in degrees)
-  double _calculateBearing(
-      double lat1, double lon1, double lat2, double lon2) {
+  double _calculateBearing(double lat1, double lon1, double lat2, double lon2) {
     final dLon = (lon2 - lon1) * pi / 180;
     final lat1Rad = lat1 * pi / 180;
     final lat2Rad = lat2 * pi / 180;
 
     final y = sin(dLon) * cos(lat2Rad);
-    final x = cos(lat1Rad) * sin(lat2Rad) -
-        sin(lat1Rad) * cos(lat2Rad) * cos(dLon);
+    final x =
+        cos(lat1Rad) * sin(lat2Rad) - sin(lat1Rad) * cos(lat2Rad) * cos(dLon);
 
     final bearing = atan2(y, x) * 180 / pi;
     return (bearing + 360) % 360;
@@ -233,12 +251,17 @@ class CompassContactList extends StatelessWidget {
 
   // Calculate distance between two points (in meters)
   double _calculateDistance(
-      double lat1, double lon1, double lat2, double lon2) {
+    double lat1,
+    double lon1,
+    double lat2,
+    double lon2,
+  ) {
     const R = 6371000; // Earth's radius in meters
     final dLat = (lat2 - lat1) * pi / 180;
     final dLon = (lon2 - lon1) * pi / 180;
 
-    final a = sin(dLat / 2) * sin(dLat / 2) +
+    final a =
+        sin(dLat / 2) * sin(dLat / 2) +
         cos(lat1 * pi / 180) *
             cos(lat2 * pi / 180) *
             sin(dLon / 2) *
@@ -262,7 +285,11 @@ class CompassContactList extends StatelessWidget {
     }
   }
 
-  String _formatRelativeBearing(double bearing, double heading, BuildContext context) {
+  String _formatRelativeBearing(
+    double bearing,
+    double heading,
+    BuildContext context,
+  ) {
     final l10n = AppLocalizations.of(context)!;
     // Calculate relative bearing (how much to turn from current heading)
     double relative = bearing - heading;

lib/widgets/map_markers.dart

@@ -12,98 +12,107 @@ class MapMarkers {
     Function(Contact)? onContactTap,
     double mapRotation = 0,
   }) {
-    return contacts.map((contact) {
-      final location = contact.displayLocation;
-      if (location == null) return null;
+    return contacts
+        .map((contact) {
+          final location = contact.displayLocation;
+          if (location == null) return null;
 
-      return Marker(
-        point: location,
-        width: 80,
-        height: 100,
-        rotate: false, // Don't rotate the entire marker with map
-        child: Transform.rotate(
-          angle: -mapRotation * 3.14159265359 / 180,
-          child: GestureDetector(
-            onTap: () {
-              if (onContactTap != null) {
-                onContactTap(contact);
-              } else {
-                _showContactInfo(context, contact);
-              }
-            },
-            child: Column(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                // Location update time indicator
-                Container(
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
-                  decoration: BoxDecoration(
-                    color: _getLocationAgeColor(contact),
-                    borderRadius: BorderRadius.circular(3),
-                  ),
-                  child: Text(
-                    contact.timeSinceLocationUpdate,
-                    style: const TextStyle(
-                      color: Colors.white,
-                      fontSize: 9,
-                      fontWeight: FontWeight.bold,
-                    ),
-                  ),
-                ),
-                const SizedBox(height: 2),
-                // Marker icon or emoji
-                Container(
-                  decoration: BoxDecoration(
-                    color: _getContactTypeColor(contact, context),
-                    shape: BoxShape.circle,
-                    border: Border.all(color: Colors.white, width: 2),
-                    boxShadow: [
-                      BoxShadow(
-                        color: Colors.black.withValues(alpha: 0.3),
-                        blurRadius: 4,
-                        offset: const Offset(0, 2),
+          return Marker(
+            point: location,
+            width: 80,
+            height: 100,
+            rotate: false, // Don't rotate the entire marker with map
+            child: Transform.rotate(
+              angle: -mapRotation * 3.14159265359 / 180,
+              child: GestureDetector(
+                onTap: () {
+                  if (onContactTap != null) {
+                    onContactTap(contact);
+                  } else {
+                    _showContactInfo(context, contact);
+                  }
+                },
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    // Location update time indicator
+                    Container(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 4,
+                        vertical: 1,
                       ),
-                    ],
-                  ),
-                  padding: const EdgeInsets.all(6),
-                  child: contact.roleEmoji != null
-                      ? Text(
-                          contact.roleEmoji!,
-                          style: const TextStyle(fontSize: 18),
-                        )
-                      : Icon(
-                          _getContactTypeIcon(contact),
+                      decoration: BoxDecoration(
+                        color: _getLocationAgeColor(contact),
+                        borderRadius: BorderRadius.circular(3),
+                      ),
+                      child: Text(
+                        contact.timeSinceLocationUpdate,
+                        style: const TextStyle(
                           color: Colors.white,
-                          size: 18,
+                          fontSize: 9,
+                          fontWeight: FontWeight.bold,
                         ),
-                ),
-                const SizedBox(height: 2),
-                // Name label (without emoji)
-                Container(
-                  constraints: const BoxConstraints(maxWidth: 80),
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
-                  decoration: BoxDecoration(
-                    color: Colors.black.withValues(alpha: 0.7),
-                    borderRadius: BorderRadius.circular(3),
-                  ),
-                  child: Text(
-                    contact.displayName,
-                    style: const TextStyle(
-                      color: Colors.white,
-                      fontSize: 9,
-                      fontWeight: FontWeight.bold,
+                      ),
                     ),
-                    overflow: TextOverflow.ellipsis,
-                    maxLines: 1,
-                    textAlign: TextAlign.center,
-                  ),
+                    const SizedBox(height: 2),
+                    // Marker icon or emoji
+                    Container(
+                      decoration: BoxDecoration(
+                        color: _getContactTypeColor(contact, context),
+                        shape: BoxShape.circle,
+                        border: Border.all(color: Colors.white, width: 2),
+                        boxShadow: [
+                          BoxShadow(
+                            color: Colors.black.withValues(alpha: 0.3),
+                            blurRadius: 4,
+                            offset: const Offset(0, 2),
+                          ),
+                        ],
+                      ),
+                      padding: const EdgeInsets.all(6),
+                      child: contact.roleEmoji != null
+                          ? Text(
+                              contact.roleEmoji!,
+                              style: const TextStyle(fontSize: 18),
+                            )
+                          : Icon(
+                              _getContactTypeIcon(contact),
+                              color: Colors.white,
+                              size: 18,
+                            ),
+                    ),
+                    const SizedBox(height: 2),
+                    // Name label (without emoji)
+                    Container(
+                      constraints: const BoxConstraints(maxWidth: 80),
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 4,
+                        vertical: 1,
+                      ),
+                      decoration: BoxDecoration(
+                        color: Colors.black.withValues(alpha: 0.7),
+                        borderRadius: BorderRadius.circular(3),
+                      ),
+                      child: Text(
+                        contact.displayName,
+                        style: const TextStyle(
+                          color: Colors.white,
+                          fontSize: 9,
+                          fontWeight: FontWeight.bold,
+                        ),
+                        overflow: TextOverflow.ellipsis,
+                        maxLines: 1,
+                        textAlign: TextAlign.center,
+                      ),
+                    ),
+                  ],
                 ),
-              ],
+              ),
             ),
-          ),
-        ),
-      );
-    }).whereType<Marker>().toList();
+          );
+        })
+        .whereType<Marker>()
+        .toList();
   }
 
   static List<Marker> createSarMarkers(
@@ -133,7 +142,10 @@ class MapMarkers {
               children: [
                 // Time ago label
                 Container(
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 4,
+                    vertical: 1,
+                  ),
                   decoration: BoxDecoration(
                     color: _getSarMarkerColor(marker),
                     borderRadius: BorderRadius.circular(3),
@@ -164,7 +176,7 @@ class MapMarkers {
                   ),
                   padding: const EdgeInsets.all(6),
                   child: Text(
-                    marker.emoji,  // Use custom emoji if available
+                    marker.emoji, // Use custom emoji if available
                     style: const TextStyle(fontSize: 18),
                   ),
                 ),
@@ -172,7 +184,10 @@ class MapMarkers {
                 // Type label
                 Container(
                   constraints: const BoxConstraints(maxWidth: 90),
-                  padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 4,
+                    vertical: 1,
+                  ),
                   decoration: BoxDecoration(
                     color: Colors.black.withValues(alpha: 0.7),
                     borderRadius: BorderRadius.circular(3),
@@ -183,8 +198,12 @@ class MapMarkers {
                       debugPrint('🗺️ [MapMarker] Displaying SAR marker:');
                       debugPrint('   marker.notes: "${marker.notes}"');
                       debugPrint('   marker.type: ${marker.type}');
-                      debugPrint('   marker.type.displayName: ${marker.type.displayName}');
-                      debugPrint('   marker.displayName: ${marker.displayName}');
+                      debugPrint(
+                        '   marker.type.displayName: ${marker.type.displayName}',
+                      );
+                      debugPrint(
+                        '   marker.displayName: ${marker.displayName}',
+                      );
 
                       return Text(
                         marker.displayName,
@@ -241,17 +260,25 @@ class MapMarkers {
               _InfoRow(
                 'Voltage',
                 '${(contact.telemetry!.batteryMilliVolts! / 1000).toStringAsFixed(3)}V'
-                '${contact.telemetry!.batteryPercentage != null ? ' (${contact.telemetry!.batteryPercentage!.toStringAsFixed(1)}%)' : ''}',
+                    '${contact.telemetry!.batteryPercentage != null ? ' (${contact.telemetry!.batteryPercentage!.toStringAsFixed(1)}%)' : ''}',
               )
             else if (contact.displayBattery != null)
               _InfoRow('Battery', '${contact.displayBattery!.round()}%'),
             if (contact.telemetry?.temperature != null)
               _InfoRow(
-                  'Temperature', '${contact.telemetry!.temperature!.toStringAsFixed(1)}°C'),
+                'Temperature',
+                '${contact.telemetry!.temperature!.toStringAsFixed(1)}°C',
+              ),
             if (contact.telemetry?.humidity != null)
-              _InfoRow('Humidity', '${contact.telemetry!.humidity!.toStringAsFixed(1)}%'),
+              _InfoRow(
+                'Humidity',
+                '${contact.telemetry!.humidity!.toStringAsFixed(1)}%',
+              ),
             if (contact.telemetry?.pressure != null)
-              _InfoRow('Pressure', '${contact.telemetry!.pressure!.toStringAsFixed(1)} hPa'),
+              _InfoRow(
+                'Pressure',
+                '${contact.telemetry!.pressure!.toStringAsFixed(1)} hPa',
+              ),
             _InfoRow('Last Seen', contact.timeSinceLastSeen),
             _InfoRow('Public Key', contact.publicKeyShort),
           ],
@@ -272,7 +299,10 @@ class MapMarkers {
       builder: (context) => AlertDialog(
         title: Row(
           children: [
-            Text(marker.emoji, style: const TextStyle(fontSize: 24)),  // Use custom emoji if available
+            Text(
+              marker.emoji,
+              style: const TextStyle(fontSize: 24),
+            ), // Use custom emoji if available
             const SizedBox(width: 8),
             Expanded(child: Text(marker.displayName)),
           ],
@@ -313,7 +343,9 @@ class MapMarkers {
 
   static Color _getSarMarkerColor(SarMarker marker) {
     // If marker has a color index, use it (new format)
-    if (marker.colorIndex != null && marker.colorIndex! >= 0 && marker.colorIndex! < 8) {
+    if (marker.colorIndex != null &&
+        marker.colorIndex! >= 0 &&
+        marker.colorIndex! < 8) {
       final colorHex = SarTemplate.getColorFromIndex(marker.colorIndex!);
       final hexCode = colorHex.replaceAll('#', '');
       return Color(int.parse('FF$hexCode', radix: 16));
@@ -342,6 +374,8 @@ class MapMarkers {
         return Colors.deepPurple; // Purple for repeaters
       case ContactType.room:
         return Colors.teal; // Teal for rooms
+      case ContactType.sensor:
+        return Colors.green; // Green for sensors
       case ContactType.channel:
         return Colors.orange; // Orange for channels
       case ContactType.none:
@@ -357,6 +391,8 @@ class MapMarkers {
         return Icons.router; // Router icon for repeaters
       case ContactType.room:
         return Icons.forum; // Forum/chat icon for rooms
+      case ContactType.sensor:
+        return Icons.sensors; // Sensors icon for sensor nodes
       case ContactType.channel:
         return Icons.public; // Public icon for channels
       case ContactType.none:
@@ -385,9 +421,7 @@ class _InfoRow extends StatelessWidget {
               style: const TextStyle(fontWeight: FontWeight.w600),
             ),
           ),
-          Expanded(
-            child: Text(value),
-          ),
+          Expanded(child: Text(value)),
         ],
       ),
     );

pubspec.lock

@@ -631,14 +631,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.6.0"
-  http_methods:
-    dependency: transitive
-    description:
-      name: http_methods
-      sha256: "6bccce8f1ec7b5d701e7921dca35e202d425b57e317ba1a37f2638590e29e566"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.1"
   http_parser:
     dependency: transitive
     description:
@@ -1208,22 +1200,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.4.1"
-  shelf:
-    dependency: "direct main"
-    description:
-      name: shelf
-      sha256: e7dd780a7ffb623c57850b33f43309312fc863fb6aa3d276a754bb299839ef12
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.4.2"
-  shelf_router:
-    dependency: "direct main"
-    description:
-      name: shelf_router
-      sha256: f5e5d492440a7fb165fe1e2e1a623f31f734d3370900070b2b1e0d0428d59864
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.4"
   simple_sparse_list:
     dependency: transitive
     description:

pubspec.yaml

@@ -118,10 +118,6 @@ dependencies:
   # XML parsing for GPX import/export
   xml: ^6.5.0
 
-  # SSE web server for multi-user support
-  shelf: ^1.4.0
-  shelf_router: ^1.1.0
-
   # Network Service Discovery (Bonjour/mDNS)
   nsd: ^4.0.3