feat: Add dark theme charts ref:

ref:

.github/workflows/build-artifacts.yml

@@ -301,7 +301,7 @@ jobs:
         run: flutter pub get
 
       - name: Build web release
-        run: flutter build web --release --base-href /meshcore-sar/
+        run: flutter build web --wasm --release --base-href /meshcore-sar/
 
       - name: Upload pages artifact
         uses: actions/upload-pages-artifact@v3

.gitignore

@@ -79,9 +79,15 @@ play-store/
 create_feature_graphic.py
 
 # Tool caches and local state
+.devenv/
 .cachebro/
 .osgrep/
 third_party/lpcnet_flutter/
+worker/node_modules/
+worker/.wrangler/
+worker/.bun/
+worker/.astro/
+worker/dist/
 
 # Claude Code local settings (permissions, personal config)
 .claude/settings.local.json

Makefile

@@ -135,6 +135,9 @@ clean: ## Clean build artifacts
 	flutter clean
 	rm -rf $(BUILD_DIR)
 
+build-web: ## Build web with WebAssembly
+	flutter build web --wasm --release
+
 # Build for all platforms
 build-all: bump ## Build for Android and iOS
 	flutter build apk --release

ios/Runner.xcodeproj/project.pbxproj

@@ -489,7 +489,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
@@ -511,7 +511,7 @@
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
@@ -530,7 +530,7 @@
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
@@ -547,7 +547,7 @@
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
@@ -679,7 +679,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
@@ -702,7 +702,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				CURRENT_PROJECT_VERSION = 126;
+				CURRENT_PROJECT_VERSION = 131;
 				DEVELOPMENT_TEAM = JND55328G8;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;

ios/Runner/Info.plist

@@ -43,7 +43,7 @@
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>126</string>
+	<string>131</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>ITSAppUsesNonExemptEncryption</key>

ios/fastlane/report.xml

@@ -5,22 +5,22 @@
     
     
       
-      <testcase classname="fastlane.lanes" name="0: default_platform" time="0.000231">
+      <testcase classname="fastlane.lanes" name="0: default_platform" time="0.000729">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="1: increment_build_number" time="0.728696">
+      <testcase classname="fastlane.lanes" name="1: increment_build_number" time="1.008455">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="2: build_app" time="101.589371">
+      <testcase classname="fastlane.lanes" name="2: build_app" time="224.694344">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="3: upload_to_app_store" time="690.798016">
+      <testcase classname="fastlane.lanes" name="3: upload_to_app_store" time="170.718455">
         
       </testcase>
     

lib/l10n/app_en.arb

@@ -660,6 +660,30 @@
   "@flood": {
     "description": "Flood routing indicator"
   },
+  "autoSend": "Auto Send",
+  "@autoSend": {
+    "description": "Auto send mode - uses current path"
+  },
+  "autoSendDescription": "Send via current path.",
+  "@autoSendDescription": {
+    "description": "Description for auto send mode"
+  },
+  "sendDirect": "Send Direct",
+  "@sendDirect": {
+    "description": "Send direct mode - zero-hop to contact"
+  },
+  "sendDirectDescription": "Send directly to this contact.",
+  "@sendDirectDescription": {
+    "description": "Description for send direct mode"
+  },
+  "sendFlood": "Send Flood",
+  "@sendFlood": {
+    "description": "Send flood mode - via all repeaters"
+  },
+  "sendFloodDescription": "Send via all repeaters.",
+  "@sendFloodDescription": {
+    "description": "Description for send flood mode"
+  },
   "loggedIn": "Logged In",
   "@loggedIn": {
     "description": "Logged in status badge"

lib/l10n/app_localizations.dart

@@ -961,6 +961,42 @@ abstract class AppLocalizations {
   /// **'Flood'**
   String get flood;
 
+  /// Auto send mode - uses current path
+  ///
+  /// In en, this message translates to:
+  /// **'Auto Send'**
+  String get autoSend;
+
+  /// Description for auto send mode
+  ///
+  /// In en, this message translates to:
+  /// **'Send via current path.'**
+  String get autoSendDescription;
+
+  /// Send direct mode - zero-hop to contact
+  ///
+  /// In en, this message translates to:
+  /// **'Send Direct'**
+  String get sendDirect;
+
+  /// Description for send direct mode
+  ///
+  /// In en, this message translates to:
+  /// **'Send directly to this contact.'**
+  String get sendDirectDescription;
+
+  /// Send flood mode - via all repeaters
+  ///
+  /// In en, this message translates to:
+  /// **'Send Flood'**
+  String get sendFlood;
+
+  /// Description for send flood mode
+  ///
+  /// In en, this message translates to:
+  /// **'Send via all repeaters.'**
+  String get sendFloodDescription;
+
   /// Logged in status badge
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_de.dart

@@ -481,6 +481,24 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get flood => 'Flut';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Angemeldet';
 

lib/l10n/app_localizations_el.dart

@@ -483,6 +483,24 @@ class AppLocalizationsEl extends AppLocalizations {
   @override
   String get flood => 'Πλημμυρικό';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Συνδεδεμένος';
 

lib/l10n/app_localizations_en.dart

@@ -478,6 +478,24 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get flood => 'Flood';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Logged In';
 

lib/l10n/app_localizations_es.dart

@@ -481,6 +481,24 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get flood => 'Inundación';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Sesión iniciada';
 

lib/l10n/app_localizations_fr.dart

@@ -483,6 +483,24 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get flood => 'Inondation';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Connecté';
 

lib/l10n/app_localizations_hr.dart

@@ -476,6 +476,24 @@ class AppLocalizationsHr extends AppLocalizations {
   @override
   String get flood => 'Preplavljanje';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Prijavljen';
 

lib/l10n/app_localizations_it.dart

@@ -480,6 +480,24 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get flood => 'Flood';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Connesso';
 

lib/l10n/app_localizations_pl.dart

@@ -481,6 +481,24 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get flood => 'Rozgłoszeniowo';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Zalogowano';
 

lib/l10n/app_localizations_pt.dart

@@ -482,6 +482,24 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get flood => 'Inundação';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Conectado';
 

lib/l10n/app_localizations_ru.dart

@@ -480,6 +480,24 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get flood => 'Широковещательно';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Вход выполнен';
 

lib/l10n/app_localizations_sl.dart

@@ -477,6 +477,24 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get flood => 'Razpršitev';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Prijavljen';
 

lib/l10n/app_localizations_tr.dart

@@ -480,6 +480,24 @@ class AppLocalizationsTr extends AppLocalizations {
   @override
   String get flood => 'Yayılım';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Giriş yapıldı';
 

lib/l10n/app_localizations_uk.dart

@@ -480,6 +480,24 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get flood => 'Широкомовно';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => 'Увійшли';
 

lib/l10n/app_localizations_zh.dart

@@ -464,6 +464,24 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get flood => '泛洪';
 
+  @override
+  String get autoSend => 'Auto Send';
+
+  @override
+  String get autoSendDescription => 'Send via current path.';
+
+  @override
+  String get sendDirect => 'Send Direct';
+
+  @override
+  String get sendDirectDescription => 'Send directly to this contact.';
+
+  @override
+  String get sendFlood => 'Send Flood';
+
+  @override
+  String get sendFloodDescription => 'Send via all repeaters.';
+
   @override
   String get loggedIn => '已登录';
 

lib/l10n/untranslated.json

@@ -1,5 +1,11 @@
 {
   "de": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -16,6 +22,12 @@
   ],
 
   "el": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -32,6 +44,12 @@
   ],
 
   "es": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -48,6 +66,12 @@
   ],
 
   "fr": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -64,6 +88,12 @@
   ],
 
   "hr": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -80,6 +110,12 @@
   ],
 
   "it": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -96,6 +132,12 @@
   ],
 
   "pl": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -112,6 +154,12 @@
   ],
 
   "pt": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -128,6 +176,12 @@
   ],
 
   "ru": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -144,6 +198,12 @@
   ],
 
   "sl": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -160,6 +220,12 @@
   ],
 
   "tr": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -176,6 +242,12 @@
   ],
 
   "uk": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",
@@ -192,6 +264,12 @@
   ],
 
   "zh": [
+    "autoSend",
+    "autoSendDescription",
+    "sendDirect",
+    "sendDirectDescription",
+    "sendFlood",
+    "sendFloodDescription",
     "postConnectDiscoveryTitle",
     "postConnectDiscoveryDescription",
     "setRegionScope",

lib/models/channel.dart

@@ -122,6 +122,15 @@ class Channel {
   /// Base64-encoded PSK for sharing with firmware CLI and related tooling.
   String get pskBase64 => base64.encode(secret);
 
+  /// MeshCore group packets carry the first byte of SHA256(channel secret).
+  int get hashByte {
+    final digest = sha256.convert(secret);
+    return digest.bytes.first;
+  }
+
+  String get hashHex =>
+      hashByte.toRadixString(16).padLeft(2, '0').toUpperCase();
+
   /// Display name for the channel
   /// Returns "Public" for channel 0, otherwise returns the custom name or "Channel N"
   String get displayName {

lib/providers/app_provider.dart

@@ -19,6 +19,7 @@ import '../services/messaging_route_preferences.dart';
 import '../services/nearest_router_selector.dart';
 import '../services/packet_capture_storage_service.dart';
 import '../services/path_history_service.dart';
+import '../services/traffic_stats_reporting_service.dart';
 import '../utils/rssi_location_estimator.dart';
 import '../services/profiles_feature_service.dart';
 import '../services/route_hash_preferences.dart';
@@ -159,6 +160,8 @@ class AppProvider with ChangeNotifier {
       LocationTrackingService();
   final PacketCaptureStorageService packetCaptureStorageService =
       PacketCaptureStorageService();
+  final TrafficStatsReportingService trafficStatsReportingService =
+      TrafficStatsReportingService();
   final NotificationService _notificationService = NotificationService();
 
   bool _isInitialized = false;
@@ -264,6 +267,11 @@ class AppProvider with ChangeNotifier {
     _loadVoiceNoiseSuppressionEnabled();
     _loadMessageFontScale();
     _loadMessagingRouteSettings();
+    unawaited(
+      trafficStatsReportingService.initialize(
+        deviceKey6Provider: _deviceKey6Hex,
+      ),
+    );
     unawaited(_pathHistoryService.initialize());
     _startPacketCapturePersistence();
     _startLowBatteryWatcher();
@@ -397,6 +405,7 @@ class AppProvider with ChangeNotifier {
 
       if (toPersist.isNotEmpty) {
         await packetCaptureStorageService.appendLogs(toPersist);
+        await trafficStatsReportingService.processLogs(toPersist);
       }
       _lastPersistedPacketSignature = _packetLogSignature(logs.last);
     } catch (e) {
@@ -2879,8 +2888,13 @@ class AppProvider with ChangeNotifier {
       timestampSeconds: DateTime.now().millisecondsSinceEpoch ~/ 1000,
     );
     debugPrint(
-      '📍 [AppProvider] Sending fast GPS update ($reason): '
-      '${position.latitude}, ${position.longitude} via channel $channelIdx',
+      '📤 [AppProvider] Fast GPS send '
+      'reason=$reason '
+      'sender=$senderKey6 '
+      'channel=$channelIdx '
+      'lat=${position.latitude} '
+      'lon=${position.longitude} '
+      'ts=${packet.timestampSeconds}',
     );
     try {
       await connectionProvider.sendChannelData(
@@ -2888,11 +2902,32 @@ class AppProvider with ChangeNotifier {
         dataType: MeshCoreConstants.dataTypeDev,
         payload: packet.encodeBinary(),
       );
+      debugPrint(
+        '✅ [AppProvider] Fast GPS sent '
+        'sender=$senderKey6 channel=$channelIdx ts=${packet.timestampSeconds}',
+      );
     } catch (e) {
       debugPrint('⚠️ [AppProvider] Fast GPS send failed: $e');
     }
   }
 
+  Future<bool> sendTestFastLocationUpdate() async {
+    if (!connectionProvider.deviceInfo.isConnected) {
+      return false;
+    }
+
+    final position = await locationTrackingService.getCurrentPosition(
+      timeLimit: const Duration(seconds: 10),
+      retryCount: 1,
+    );
+    if (position == null) {
+      return false;
+    }
+
+    await _sendFastLocationUpdate(position, reason: 'test');
+    return true;
+  }
+
   Contact? _resolveVoiceFetchRequester(VoiceFetchRequest request) {
     final liveContact = _resolveContactByPrefixHex(request.requesterKey6);
     if (liveContact != null) {
@@ -4109,6 +4144,7 @@ class AppProvider with ChangeNotifier {
     }
     _pendingChannelVoicePackets.clear();
     _pendingChannelImageFragments.clear();
+    trafficStatsReportingService.dispose();
     super.dispose();
   }
 }

lib/providers/channels_provider.dart

@@ -29,6 +29,16 @@ class ChannelsProvider with ChangeNotifier {
     return index == 0 ? 'Public' : 'Channel $index';
   }
 
+  List<Channel> getChannelsByHashByte(int hashByte) {
+    return _channels.values.where((channel) => channel.hashByte == hashByte).toList()
+      ..sort((a, b) => a.index.compareTo(b.index));
+  }
+
+  String? getUniqueChannelDisplayNameByHashByte(int hashByte) {
+    final matches = getChannelsByHashByte(hashByte);
+    return matches.length == 1 ? matches.single.displayName : null;
+  }
+
   /// Add or update a channel
   void addOrUpdateChannel({
     required int index,

lib/providers/connection_provider.dart

@@ -47,6 +47,23 @@ class PingResult {
   });
 }
 
+/// Result of a relay ping (trace path) operation
+class RelayPingResult {
+  final bool success;
+  final int durationMs;
+  final double snrThere;
+  final double snrBack;
+  final int hopCount;
+
+  const RelayPingResult({
+    required this.success,
+    required this.durationMs,
+    required this.snrThere,
+    required this.snrBack,
+    required this.hopCount,
+  });
+}
+
 /// Scanned device with RSSI information
 class ScannedDevice {
   final BluetoothDevice device;
@@ -172,6 +189,8 @@ class ConnectionProvider with ChangeNotifier {
       MessageDeliveryTracker();
   final PingTracker _pingTracker = PingTracker();
   final Map<String, Future<PingResult>> _pendingSmartPings = {};
+  final Map<int, Completer<RelayPingResult>> _pendingRelayPings = {};
+  final Map<int, int> _relayPingStartTimes = {};
 
   // Expose room login states
   Map<String, RoomLoginState> get roomLoginStates =>
@@ -631,6 +650,10 @@ class ConnectionProvider with ChangeNotifier {
       notifyListeners();
     };
 
+    service.onTraceDataReceived = (nonce, hopCount, snrThere, snrBack) {
+      _handleTraceDataReceived(nonce, hopCount, snrThere, snrBack);
+    };
+
     service.onTxActivity = () {
       _txActivity = true;
       notifyListeners();
@@ -2036,6 +2059,70 @@ class ConnectionProvider with ChangeNotifier {
     }
   }
 
+  /// Ping a relay/repeater using trace path (command 36).
+  /// Returns RTT, SNR there/back, and hop count.
+  Future<RelayPingResult> pingRelay(Contact contact) async {
+    if (!_activeService.isConnected) {
+      return const RelayPingResult(
+        success: false, durationMs: 0, snrThere: 0, snrBack: 0, hopCount: 0,
+      );
+    }
+
+    final nonce = Random().nextInt(0xFFFFFFFF);
+    final completer = Completer<RelayPingResult>();
+    _pendingRelayPings[nonce] = completer;
+    _relayPingStartTimes[nonce] = DateTime.now().millisecondsSinceEpoch;
+
+    // Timeout after 10 seconds
+    final timer = Timer(const Duration(seconds: 10), () {
+      _pendingRelayPings.remove(nonce);
+      _relayPingStartTimes.remove(nonce);
+      if (!completer.isCompleted) {
+        completer.complete(const RelayPingResult(
+          success: false, durationMs: 0, snrThere: 0, snrBack: 0, hopCount: 0,
+        ));
+      }
+    });
+
+    try {
+      // Zero-hop ping: prefixSize=1 sends 1 byte of public key, hopType=0
+      await _activeService.sendTracePath(
+        nonce: nonce,
+        prefixSize: 1,
+        contactPublicKey: contact.publicKey,
+      );
+      final result = await completer.future;
+      timer.cancel();
+      return result;
+    } catch (e) {
+      timer.cancel();
+      _pendingRelayPings.remove(nonce);
+      _relayPingStartTimes.remove(nonce);
+      return const RelayPingResult(
+        success: false, durationMs: 0, snrThere: 0, snrBack: 0, hopCount: 0,
+      );
+    }
+  }
+
+  void _handleTraceDataReceived(
+    int nonce, int hopCount, double snrThere, double snrBack,
+  ) {
+    final completer = _pendingRelayPings.remove(nonce);
+    final startTime = _relayPingStartTimes.remove(nonce);
+    if (completer != null && !completer.isCompleted) {
+      final durationMs = startTime != null
+          ? DateTime.now().millisecondsSinceEpoch - startTime
+          : 0;
+      completer.complete(RelayPingResult(
+        success: true,
+        durationMs: durationMs,
+        snrThere: snrThere,
+        snrBack: snrBack,
+        hopCount: hopCount,
+      ));
+    }
+  }
+
   String _publicKeyToHex(Uint8List publicKey) {
     return publicKey.map((b) => b.toRadixString(16).padLeft(2, '0')).join('');
   }
@@ -2880,6 +2967,32 @@ class ConnectionProvider with ChangeNotifier {
     }
   }
 
+  /// Set a contact to zero-hop direct mode (no mesh forwarding).
+  ///
+  /// This forces the firmware to send directly to this contact without
+  /// using any repeaters, matching the "Send Direct" option in the
+  /// official MeshCore client.
+  Future<void> setContactDirect(Contact contact) async {
+    if (!_activeService.isConnected) {
+      _error = 'Not connected to device';
+      notifyListeners();
+      return;
+    }
+
+    try {
+      _error = null;
+      final updatedContact = contact.copyWith(
+        outPathLen: 0, // descriptor: hashSize=1, hopCount=0 → zero-hop direct
+        outPath: Uint8List(64),
+      );
+      await _activeService.addOrUpdateContact(updatedContact);
+    } catch (e) {
+      _error = 'Failed to set direct path: $e';
+      notifyListeners();
+      rethrow;
+    }
+  }
+
   /// Remove a contact from the companion radio
   ///
   /// Deletes the contact from the device's internal contact table.

lib/providers/contacts_provider.dart

@@ -275,10 +275,10 @@ class ContactsProvider with ChangeNotifier {
 
   /// Clear runtime contact state before a live device contact sync begins.
   ///
-  /// This intentionally does not touch persisted storage. It keeps any saved
-  /// contact groups for the active profile, but removes stale in-memory device
-  /// contacts and discovery state so a newly connected device starts from an
-  /// empty list while sync is in progress.
+  /// This intentionally does not touch persisted storage. It snapshots the
+  /// current in-memory contacts so sync updates can still merge against the
+  /// latest local state, but keeps the visible list intact so reconnects do
+  /// not blank the UI while the device is resyncing.
   Future<void> prepareForDeviceContactSync({Uint8List? devicePublicKey}) async {
     _setSelfDevicePublicKey(devicePublicKey);
     if (!_isInitialized) {
@@ -292,7 +292,7 @@ class ContactsProvider with ChangeNotifier {
     }
 
     debugPrint(
-      '🧹 [ContactsProvider] Clearing runtime contacts before device sync',
+      '🧹 [ContactsProvider] Preparing retained contact state for device sync',
     );
     _retainedContactsForSync
       ..clear()
@@ -301,12 +301,6 @@ class ContactsProvider with ChangeNotifier {
           (contact) => MapEntry(contact.publicKeyHex, contact),
         ),
       );
-    _contacts.clear();
-    _pendingAdverts.clear();
-    _estimatedLocations.clear();
-    _rssiObservations.clear();
-    _ensurePublicChannelExists();
-    notifyListeners();
   }
 
   /// Remove self-contact from loaded contacts (called after BLE connection established)
@@ -1143,13 +1137,34 @@ class ContactsProvider with ChangeNotifier {
       ),
     );
 
+    debugPrint(
+      '📥 [ContactsProvider] Fast GPS received '
+      'sender=${packet.senderKey6} '
+      'contact=${contact.displayName} '
+      'contactKey=${contact.publicKeyHex} '
+      'lat=${packet.latitude} '
+      'lon=${packet.longitude} '
+      'ts=${packet.timestampSeconds}',
+    );
+
     final updatedContact = contact.copyWith(
       telemetry: updatedTelemetry,
       lastAdvert: packet.timestampSeconds,
+      lastMod: packet.timestampSeconds,
       advLat: _coordinateToAdvertMicrodegrees(packet.latitude),
       advLon: _coordinateToAdvertMicrodegrees(packet.longitude),
     );
     _contacts[contact.publicKeyHex] = updatedContact;
+    _estimatedLocations[contact.publicKeyHex] = LatLng(
+      packet.latitude,
+      packet.longitude,
+    );
+    debugPrint(
+      '✅ [ContactsProvider] Fast GPS applied '
+      'contact=${updatedContact.displayName} '
+      'contactKey=${updatedContact.publicKeyHex} '
+      'lastAdvert=${updatedContact.lastAdvert}',
+    );
     _persistContacts();
     notifyListeners();
   }

lib/providers/messages_provider.dart

@@ -23,6 +23,7 @@ typedef DisplayMessageEntry = ({Message message, int occurrenceCount});
 /// Messages Provider - manages message history and SAR markers
 class MessagesProvider with ChangeNotifier {
   static const Duration _channelEchoWarningDelay = Duration(seconds: 12);
+  static const Duration _receivedDuplicateWindow = Duration(seconds: 5);
 
   final List<Message> _messages = [];
   final Map<String, SarMarker> _sarMarkers = {};
@@ -666,7 +667,23 @@ class MessagesProvider with ChangeNotifier {
 
     final matchingSentReplayIndex = _findMatchingSentReplayIndex(finalMessage);
     if (matchingSentReplayIndex != -1) {
-      _clearChannelSendWarning(_messages[matchingSentReplayIndex].id);
+      final existingId = _messages[matchingSentReplayIndex].id;
+      _clearChannelSendWarning(existingId);
+      if (contactLocationSnapshot != null) {
+        _messageContactLocations[existingId] = contactLocationSnapshot;
+      }
+      _messageReceptionDetails[existingId] =
+          MessageReceptionDetails.mergeDuplicate(
+            existing: _messageReceptionDetails[existingId],
+            incoming: receptionDetailsSnapshot,
+          );
+      final existingMessage = _messages[matchingSentReplayIndex];
+      _messages[matchingSentReplayIndex] = existingMessage.copyWith(
+        pathLen: finalMessage.pathLen > 0 ? finalMessage.pathLen : existingMessage.pathLen,
+        pathBytes: finalMessage.pathBytes ?? existingMessage.pathBytes,
+      );
+      _persistMessages();
+      return;
     }
 
     _messages.add(finalMessage);
@@ -715,10 +732,25 @@ class MessagesProvider with ChangeNotifier {
       return -1;
     }
 
+    final exactDuplicateIndex = _findExactDuplicateMessageIndex(message);
+    if (exactDuplicateIndex != -1) {
+      return exactDuplicateIndex;
+    }
+
+    final lastConversationDuplicateIndex =
+        _findLastConversationDuplicateMessageIndex(message);
+    if (lastConversationDuplicateIndex != -1) {
+      return lastConversationDuplicateIndex;
+    }
+
+    return -1;
+  }
+
+  int _findExactDuplicateMessageIndex(Message message) {
     for (int index = 0; index < _messages.length; index++) {
       final existing = _messages[index];
       if (existing.isSentMessage ||
-          !_matchesDuplicateScope(existing, message) ||
+          !_matchesExactDuplicateScope(existing, message) ||
           existing.text != message.text) {
         continue;
       }
@@ -735,23 +767,38 @@ class MessagesProvider with ChangeNotifier {
     return -1;
   }
 
-  bool _matchesDuplicateScope(Message existing, Message message) {
+  int _findLastConversationDuplicateMessageIndex(Message message) {
+    for (int index = _messages.length - 1; index >= 0; index--) {
+      final existing = _messages[index];
+      if (!_isSameConversation(existing, message)) {
+        continue;
+      }
+      if (existing.isSentMessage ||
+          existing.isSystemMessage ||
+          existing.text != message.text) {
+        return -1;
+      }
+      final receivedDelta = existing.receivedAt.difference(message.receivedAt).abs();
+      if (receivedDelta > _receivedDuplicateWindow) {
+        return -1;
+      }
+      return _matchesDuplicateSenderIdentity(existing, message) ? index : -1;
+    }
+
+    return -1;
+  }
+
+  bool _matchesExactDuplicateScope(Message existing, Message message) {
     if (existing.messageType != message.messageType) {
       return false;
     }
 
     if (message.isContactMessage) {
-      // Match by sender key + sender timestamp (matches official app's DB
-      // uniqueness: contactPublicKey + senderTimestamp + text + txtType).
-      if (existing.senderKeyShort == message.senderKeyShort &&
-          existing.senderTimestamp == message.senderTimestamp) {
-        return true;
+      if (!_isSameConversation(existing, message)) {
+        return false;
       }
-
-      // Fallback dedup when retransmits surface as separate inbound rows
-      // without a stable timestamp/message id, but still carry the same
-      // visible sender identity and payload.
-      return _matchesDuplicateSenderIdentity(existing, message);
+      return existing.senderTimestamp == message.senderTimestamp &&
+          _matchesDuplicateSenderIdentity(existing, message);
     }
 
     if (message.isChannelMessage) {
@@ -759,27 +806,40 @@ class MessagesProvider with ChangeNotifier {
         return false;
       }
 
-      // Primary dedup: same senderTimestamp = same message from mesh repeats.
-      // Matches official app's DB uniqueness: (channelSecret, senderTimestamp, text).
       if (existing.senderTimestamp == message.senderTimestamp) {
         return true;
       }
-
-      // Secondary: catch near-duplicate repeats within a 30s window
-      // (clock drift between nodes).
-      final withinChannelRepeatWindow =
-          (existing.senderTimestamp - message.senderTimestamp).abs() <= 30;
-      if (!withinChannelRepeatWindow) {
-        return false;
-      }
-
-      return _matchesDuplicateSenderIdentity(existing, message);
+      return false;
     }
 
     // System messages and other types: never deduplicate by scope alone.
     return false;
   }
 
+  bool _isSameConversation(Message existing, Message message) {
+    if (existing.messageType != message.messageType) {
+      return false;
+    }
+
+    if (message.isChannelMessage) {
+      return existing.channelIdx == message.channelIdx;
+    }
+
+    if (!message.isContactMessage) {
+      return false;
+    }
+
+    if (existing.recipientPublicKey != null && message.recipientPublicKey != null) {
+      return _listEquals(existing.recipientPublicKey!, message.recipientPublicKey!);
+    }
+
+    if (existing.recipientPublicKey == null && message.recipientPublicKey == null) {
+      return true;
+    }
+
+    return false;
+  }
+
   bool _matchesDuplicateSenderIdentity(Message existing, Message message) {
     final existingSenderKey = existing.senderKeyShort;
     final incomingSenderKey = message.senderKeyShort;
@@ -809,7 +869,7 @@ class MessagesProvider with ChangeNotifier {
         continue;
       }
 
-      if (_matchesDuplicateScope(existing, message)) {
+      if (_matchesSentReplayScope(existing, message)) {
         return index;
       }
     }
@@ -817,6 +877,24 @@ class MessagesProvider with ChangeNotifier {
     return -1;
   }
 
+  bool _matchesSentReplayScope(Message existing, Message message) {
+    if (!_isSameConversation(existing, message)) {
+      return false;
+    }
+
+    if (existing.senderTimestamp == message.senderTimestamp) {
+      return true;
+    }
+
+    final withinChannelRepeatWindow =
+        (existing.senderTimestamp - message.senderTimestamp).abs() <= 30;
+    if (!withinChannelRepeatWindow) {
+      return false;
+    }
+
+    return _matchesDuplicateSenderIdentity(existing, message);
+  }
+
   /// Add multiple messages
   void addMessages(List<Message> messages) {
     int addedCount = 0;
@@ -1214,9 +1292,7 @@ class MessagesProvider with ChangeNotifier {
     for (final message in messages) {
       final occurrenceCount = _messageOccurrenceCount(message);
       final existingIndex = entries.indexWhere(
-        (entry) =>
-            entry.message.text == message.text &&
-            _matchesDuplicateScope(entry.message, message),
+        (entry) => _shouldCollapseDisplayMessage(entry.message, message),
       );
 
       if (existingIndex == -1) {
@@ -1234,6 +1310,17 @@ class MessagesProvider with ChangeNotifier {
     return entries;
   }
 
+  bool _shouldCollapseDisplayMessage(Message existing, Message message) {
+    if (existing.isSentMessage || message.isSentMessage) {
+      return false;
+    }
+
+    return existing.text == message.text &&
+        (_matchesExactDuplicateScope(existing, message) ||
+            (_isSameConversation(existing, message) &&
+                _matchesDuplicateSenderIdentity(existing, message)));
+  }
+
   int _messageOccurrenceCount(Message message) =>
       _messageReceptionDetails[message.id]?.receivedCopies ?? 1;
 

lib/providers/sensors_provider.dart

@@ -14,7 +14,7 @@ enum SensorRefreshState { idle, refreshing, success, timeout, unavailable }
 
 class SensorsProvider with ChangeNotifier {
   static const Duration _successStateRetention = Duration(minutes: 1);
-  static const int selfAutoRefreshMinutes = 1;
+  static const Duration selfAutoRefreshInterval = Duration(seconds: 30);
   static const String _watchedSensorsKey = 'watched_sensor_keys';
   static const String _visibleSensorMetricsKey = 'visible_sensor_metrics';
   static const String _fieldSpanKey = 'sensor_field_spans';
@@ -374,18 +374,18 @@ class SensorsProvider with ChangeNotifier {
     return List<String>.unmodifiable(dueKeys);
   }
 
-  bool _isRefreshDue(
+  bool _isRefreshDueForInterval(
     String publicKeyHex, {
-    required int minutes,
+    required Duration interval,
     required DateTime refreshTime,
   }) {
-    if (minutes <= 0) {
+    if (interval <= Duration.zero) {
       return false;
     }
 
     final lastRefreshAt = _lastRefreshAttemptAt[publicKeyHex];
     return lastRefreshAt == null ||
-        refreshTime.difference(lastRefreshAt) >= Duration(minutes: minutes);
+        refreshTime.difference(lastRefreshAt) >= interval;
   }
 
   Future<void> toggleMetric(
@@ -769,9 +769,9 @@ class SensorsProvider with ChangeNotifier {
     final self = selfContact(contactsProvider, connectionProvider);
     if (self != null &&
         !dueKeys.contains(self.publicKeyHex) &&
-        _isRefreshDue(
+        _isRefreshDueForInterval(
           self.publicKeyHex,
-          minutes: selfAutoRefreshMinutes,
+          interval: selfAutoRefreshInterval,
           refreshTime: refreshTime,
         )) {
       dueKeys.insert(0, self.publicKeyHex);

lib/screens/live_traffic_screen.dart

@@ -3,14 +3,17 @@ import 'package:crypto/crypto.dart';
 import 'package:flutter/material.dart';
 import 'package:geolocator/geolocator.dart';
 import 'package:provider/provider.dart';
+import 'package:url_launcher/url_launcher.dart';
 
 import '../models/ble_packet_log.dart';
 import '../models/contact.dart';
+import '../providers/channels_provider.dart';
 import '../providers/contacts_provider.dart';
 import '../providers/connection_provider.dart';
 import '../services/live_traffic_summary.dart';
 import '../services/location_tracking_service.dart';
 import '../services/route_hash_preferences.dart';
+import '../services/traffic_stats_reporting_service.dart';
 import '../utils/log_rx_route_decoder.dart';
 import '../widgets/compact_signal_indicator.dart';
 import '../widgets/messages/message_trace_sheet.dart';
@@ -155,6 +158,16 @@ class _LiveTrafficScreenState extends State<LiveTrafficScreen> {
               tooltip: 'Open packet logs',
               icon: const Icon(Icons.list_alt_rounded),
             ),
+          IconButton(
+            onPressed: _openStatsDashboard,
+            tooltip: 'View public stats',
+            icon: const Icon(Icons.open_in_new),
+          ),
+          IconButton(
+            onPressed: () => _showPacketTypeHelpSheet(context),
+            tooltip: 'Packet type help',
+            icon: const Icon(Icons.help_outline),
+          ),
           IconButton(
             onPressed: () {
               setState(() {
@@ -250,6 +263,13 @@ class _LiveTrafficScreenState extends State<LiveTrafficScreen> {
     );
   }
 
+  Future<void> _openStatsDashboard() async {
+    final url = TrafficStatsReportingService.dashboardUri;
+    if (await canLaunchUrl(url)) {
+      await launchUrl(url, mode: LaunchMode.externalApplication);
+    }
+  }
+
   Future<void> _showWindowPicker(BuildContext context) async {
     final selected = await showModalBottomSheet<Duration>(
       context: context,
@@ -278,6 +298,68 @@ class _LiveTrafficScreenState extends State<LiveTrafficScreen> {
       _selectedWindow = selected;
     });
   }
+
+  Future<void> _showPacketTypeHelpSheet(BuildContext context) {
+    final packetTypes = LiveTrafficEntry.knownPayloadTypes;
+    return showModalBottomSheet<void>(
+      context: context,
+      showDragHandle: true,
+      isScrollControlled: true,
+      builder: (context) {
+        final scheme = Theme.of(context).colorScheme;
+        return SafeArea(
+          child: Padding(
+            padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+            child: ListView(
+              shrinkWrap: true,
+              children: [
+                Text(
+                  'Packet Types',
+                  style: Theme.of(context).textTheme.titleMedium,
+                ),
+                const SizedBox(height: 6),
+                Text(
+                  'Descriptions below follow the current MeshCore payload definitions.',
+                  style: TextStyle(color: scheme.onSurfaceVariant),
+                ),
+                const SizedBox(height: 16),
+                for (final packetType in packetTypes) ...[
+                  Container(
+                    padding: const EdgeInsets.all(12),
+                    decoration: BoxDecoration(
+                      color: scheme.surfaceContainerHigh,
+                      borderRadius: BorderRadius.circular(14),
+                    ),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          packetType.title,
+                          style: const TextStyle(
+                            fontSize: 14,
+                            fontWeight: FontWeight.w800,
+                          ),
+                        ),
+                        const SizedBox(height: 4),
+                        Text(
+                          packetType.description,
+                          style: TextStyle(
+                            fontSize: 13,
+                            color: scheme.onSurfaceVariant,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  const SizedBox(height: 10),
+                ],
+              ],
+            ),
+          ),
+        );
+      },
+    );
+  }
 }
 
 class _SummaryPanel extends StatelessWidget {
@@ -676,7 +758,11 @@ class _LiveTrafficCard extends StatelessWidget {
     final accent = isRx ? Colors.green : Colors.blue;
     final rxInfo = log.logRxDataInfo;
     final originDistance = _originDistanceLabel(context, entry);
-    final packetDetails = _LiveTrafficPacketDetails.fromEntry(entry);
+    final channelsProvider = _maybeProvider<ChannelsProvider>(context);
+    final packetDetails = _LiveTrafficPacketDetails.fromEntry(
+      entry,
+      channelsProvider: channelsProvider,
+    );
     final signalMetric = SignalMetric.fromRxInfo(rxInfo);
 
     return Material(
@@ -730,7 +816,7 @@ class _LiveTrafficCard extends StatelessWidget {
                         if (entry.payloadMeaning != null)
                           Text(
                             entry.payloadMeaning!,
-                            maxLines: 1,
+                            maxLines: 2,
                             overflow: TextOverflow.ellipsis,
                             style: TextStyle(
                               fontSize: 11,
@@ -989,27 +1075,22 @@ class _LiveTrafficPacketDetails {
     required this.endpointLine,
   });
 
-  factory _LiveTrafficPacketDetails.fromEntry(LiveTrafficEntry entry) {
+  factory _LiveTrafficPacketDetails.fromEntry(
+    LiveTrafficEntry entry, {
+    ChannelsProvider? channelsProvider,
+  }) {
     final route = entry.route;
     final payloadType = route?.payloadType;
     final parsedPayload = _ParsedTrafficPayload.tryParse(
       entry.log.rawData,
       route,
+      channelsProvider: channelsProvider,
     );
     final title = switch (payloadType) {
-      0x00 => 'FLOOD REQUEST',
-      0x01 => 'FLOOD RESPONSE',
-      0x02 => 'FLOOD TEXT',
-      0x03 => 'FLOOD ACK',
-      0x04 => 'FLOOD ADVERTISEMENT',
-      0x05 => 'FLOOD GROUP_TEXT',
-      0x06 => 'FLOOD GROUP_DATA',
-      0x07 => 'FLOOD ANON_REQUEST',
-      0x08 => 'FLOOD RETURNED_PATH',
-      0x09 => 'FLOOD TRACE_PATH',
-      0x0A => 'FLOOD MULTIPART',
-      0x0B => 'FLOOD CONTROL',
-      _ => entry.payloadLabel.toUpperCase(),
+      0x05 => parsedPayload?.channelDisplayName ?? LiveTrafficEntry.payloadTypeTitle(0x05),
+      0x06 => parsedPayload?.channelDisplayName ?? LiveTrafficEntry.payloadTypeTitle(0x06),
+      null => entry.payloadLabel.toUpperCase(),
+      _ => LiveTrafficEntry.payloadTypeTitle(payloadType),
     };
 
     final hopHashes = route?.hopHashes ?? const <String>[];
@@ -1041,13 +1122,15 @@ class _LiveTrafficPacketDetails {
 
 class _ParsedTrafficPayload {
   final String? endpointLine;
+  final String? channelDisplayName;
 
-  const _ParsedTrafficPayload({this.endpointLine});
+  const _ParsedTrafficPayload({this.endpointLine, this.channelDisplayName});
 
   static _ParsedTrafficPayload? tryParse(
     List<int> rawData,
-    DecodedLogRxRoute? route,
-  ) {
+    DecodedLogRxRoute? route, {
+    ChannelsProvider? channelsProvider,
+  }) {
     if (rawData.length < 5 ||
         rawData.first != LiveTrafficSummary.logRxDataResponseCode) {
       return null;
@@ -1084,9 +1167,18 @@ class _ParsedTrafficPayload {
       case 0x05:
       case 0x06:
         if (payload.isEmpty) return const _ParsedTrafficPayload();
+        final channelHash = payload.first;
+        final channelHashHex = channelHash
+            .toRadixString(16)
+            .padLeft(2, '0')
+            .toUpperCase();
+        final channelDisplayName = channelsProvider
+            ?.getUniqueChannelDisplayNameByHashByte(channelHash);
         return _ParsedTrafficPayload(
-          endpointLine:
-              'Channel Hash: ${payload.first.toRadixString(16).padLeft(2, '0').toUpperCase()}',
+          channelDisplayName: channelDisplayName,
+          endpointLine: channelDisplayName == null
+              ? 'Channel Hash: $channelHashHex'
+              : 'Channel: $channelDisplayName ($channelHashHex)',
         );
       case 0x00:
       case 0x01:

lib/screens/messages_tab.dart

@@ -148,11 +148,13 @@ class _MessagesTabState extends State<MessagesTab> {
   TextRange? _activeMentionRange;
   String _mentionQuery = '';
   List<Contact> _mentionSuggestions = const [];
+  ContactsProvider? _contactsProvider;
 
   // Message destination state
   String _destinationType =
       MessageDestinationPreferences.destinationTypeChannel;
   Contact? _selectedRecipient;
+  bool _isDestinationLocked = false;
 
   // Region scope state
   String? _channelRegionScopeName;
@@ -183,13 +185,9 @@ class _MessagesTabState extends State<MessagesTab> {
     super.initState();
     _textController.addListener(_handleComposerChanged);
     _focusNode.addListener(_handleFocusChanged);
-    // Load saved message destination
-    _loadSavedDestination();
     _loadVoiceSettings();
     _loadAllChannelRegionScopes();
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      _checkForNavigationRequest();
-    });
+    _scheduleDestinationSync();
   }
 
   Future<void> _loadVoiceSettings() async {
@@ -203,11 +201,13 @@ class _MessagesTabState extends State<MessagesTab> {
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
-    // Reload saved destination and check for navigation request whenever dependencies change
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      _loadSavedDestination();
-      _checkForNavigationRequest();
-    });
+    final contactsProvider = context.read<ContactsProvider>();
+    if (!identical(_contactsProvider, contactsProvider)) {
+      _contactsProvider?.removeListener(_handleContactsChanged);
+      _contactsProvider = contactsProvider;
+      _contactsProvider?.addListener(_handleContactsChanged);
+    }
+    _scheduleDestinationSync();
   }
 
   @override
@@ -216,6 +216,7 @@ class _MessagesTabState extends State<MessagesTab> {
     _channelReadTimer?.cancel();
     _voiceStreamSub?.cancel();
     _voiceRecorder.dispose();
+    _contactsProvider?.removeListener(_handleContactsChanged);
     _focusNode.removeListener(_handleFocusChanged);
     _textController.dispose();
     _focusNode.dispose();
@@ -228,13 +229,37 @@ class _MessagesTabState extends State<MessagesTab> {
     super.didUpdateWidget(oldWidget);
     if (oldWidget.isActive != widget.isActive) {
       _syncChannelAutoReadTimer(context.read<MessagesProvider>());
+      if (widget.isActive) {
+        _scheduleDestinationSync();
+      }
     }
   }
 
-  void _checkForNavigationRequest() {
+  void _scheduleDestinationSync() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      _synchronizeDestinationState();
+    });
+  }
+
+  void _handleContactsChanged() {
+    if (!mounted) return;
+    _scheduleDestinationSync();
+  }
+
+  Future<void> _synchronizeDestinationState() async {
+    if (!mounted) return;
     final messagesProvider = context.read<MessagesProvider>();
     final targetMessageId = messagesProvider.targetMessageId;
     final targetDestinationType = messagesProvider.targetDestinationType;
+    final targetRecipientPublicKeyHex =
+        messagesProvider.targetRecipientPublicKeyHex;
+
+    await _restoreDestinationState(
+      overrideType: targetDestinationType,
+      overrideRecipientPublicKeyHex: targetRecipientPublicKeyHex,
+    );
+
+    if (!mounted) return;
 
     if (targetMessageId != null) {
       _scrollToMessage(targetMessageId);
@@ -242,11 +267,8 @@ class _MessagesTabState extends State<MessagesTab> {
     }
 
     if (targetDestinationType != null) {
-      _applyPendingDestination(
-        type: targetDestinationType,
-        recipientPublicKeyHex: messagesProvider.targetRecipientPublicKeyHex,
-      );
       messagesProvider.clearDestinationNavigation();
+      _focusNode.requestFocus();
     }
   }
 
@@ -447,56 +469,91 @@ class _MessagesTabState extends State<MessagesTab> {
     _updateCharacterCount();
   }
 
-  /// Load saved message destination from preferences
-  Future<void> _loadSavedDestination() async {
+  Future<void> _restoreDestinationState({
+    String? overrideType,
+    String? overrideRecipientPublicKeyHex,
+  }) async {
+    final lockedDestination =
+        await MessageDestinationPreferences.getLockedDestination();
     final savedDestination =
         await MessageDestinationPreferences.getDestination();
+    final effectiveType =
+        overrideType ??
+        lockedDestination?['type'] ??
+        savedDestination?['type'] ??
+        MessageDestinationPreferences.destinationTypeChannel;
+    final effectivePublicKeyHex =
+        overrideRecipientPublicKeyHex ??
+        lockedDestination?['publicKey'] ??
+        savedDestination?['publicKey'];
+    if (!mounted) return;
+    final contactsProvider = context.read<ContactsProvider>();
+    final recipient = _resolveDestinationRecipient(
+      contactsProvider,
+      effectiveType,
+      effectivePublicKeyHex,
+    );
+    final allowsEmptyRecipient =
+        effectiveType == MessageDestinationPreferences.destinationTypeAll ||
+        (effectiveType == MessageDestinationPreferences.destinationTypeChannel &&
+            effectivePublicKeyHex == null);
+    final shouldFallbackToPublicChannel =
+        recipient == null && !allowsEmptyRecipient;
+    final destinationType = shouldFallbackToPublicChannel
+        ? MessageDestinationPreferences.destinationTypeChannel
+        : effectiveType;
+    final selectedRecipient = shouldFallbackToPublicChannel ? null : recipient;
+    final shouldClearSavedDestination =
+        lockedDestination == null &&
+        overrideType == null &&
+        shouldFallbackToPublicChannel &&
+        savedDestination != null;
 
-    if (savedDestination == null || !mounted) {
-      // Default to public channel
-      return;
-    }
-
-    final type = savedDestination['type']!;
-    final publicKey = savedDestination['publicKey'];
+    if (!mounted) return;
 
     setState(() {
-      _destinationType = type;
+      _isDestinationLocked = lockedDestination != null;
+      _destinationType = destinationType;
+      _selectedRecipient = selectedRecipient;
     });
 
-    // If it's a contact or room, try to find it in the contacts list
-    if (publicKey != null && mounted) {
-      final contactsProvider = context.read<ContactsProvider>();
-      final contact = contactsProvider.contacts.where((c) {
-        return c.publicKeyHex == publicKey;
-      }).firstOrNull;
-
-      if (contact != null) {
-        setState(() {
-          _selectedRecipient = contact;
-        });
-      } else {
-        // Contact/room not found, fallback to public channel
-        debugPrint(
-          '⚠️ [MessagesTab] Saved recipient not found, falling back to public channel',
-        );
-        setState(() {
-          _destinationType =
-              MessageDestinationPreferences.destinationTypeChannel;
-          _selectedRecipient = null;
-        });
-        await MessageDestinationPreferences.clearDestination();
-      }
+    if (shouldClearSavedDestination) {
+      await MessageDestinationPreferences.clearDestination();
     }
 
     _enforceMessageByteLimit();
-
-    // Load region scope for channel destinations
     await _loadRegionScope();
   }
 
+  Contact? _resolveDestinationRecipient(
+    ContactsProvider contactsProvider,
+    String type,
+    String? publicKeyHex,
+  ) {
+    if (publicKeyHex == null) {
+      return null;
+    }
+
+    final candidates = switch (type) {
+      MessageDestinationPreferences.destinationTypeChannel =>
+        contactsProvider.channels,
+      MessageDestinationPreferences.destinationTypeRoom => contactsProvider.rooms,
+      MessageDestinationPreferences.destinationTypeContact =>
+        contactsProvider.chatContacts,
+      _ => contactsProvider.contacts,
+    };
+
+    return candidates.where((contact) {
+      return contact.publicKeyHex == publicKeyHex;
+    }).firstOrNull;
+  }
+
   /// Show recipient selector bottom sheet
   void _showRecipientSelector() {
+    if (_isDestinationLocked) {
+      return;
+    }
+
     final contactsProvider = context.read<ContactsProvider>();
     final messagesProvider = context.read<MessagesProvider>();
 
@@ -552,7 +609,11 @@ class _MessagesTabState extends State<MessagesTab> {
   }
 
   /// Handle recipient selection
-  Future<void> _onRecipientSelected(String type, Contact? recipient) async {
+  Future<void> _onRecipientSelected(
+    String type,
+    Contact? recipient, {
+    bool persistSelection = true,
+  }) async {
     setState(() {
       _destinationType = type;
       _selectedRecipient = recipient;
@@ -565,11 +626,12 @@ class _MessagesTabState extends State<MessagesTab> {
     // Load region scope for channel destinations
     await _loadRegionScope();
 
-    // Save to preferences
-    await MessageDestinationPreferences.setDestination(
-      type,
-      recipientPublicKey: recipient?.publicKeyHex,
-    );
+    if (persistSelection) {
+      await MessageDestinationPreferences.setDestination(
+        type,
+        recipientPublicKey: recipient?.publicKeyHex,
+      );
+    }
 
     // Show confirmation toast
     if (!mounted) return;
@@ -620,23 +682,6 @@ class _MessagesTabState extends State<MessagesTab> {
     });
   }
 
-  Future<void> _applyPendingDestination({
-    required String type,
-    String? recipientPublicKeyHex,
-  }) async {
-    Contact? recipient;
-    if (recipientPublicKeyHex != null) {
-      final contactsProvider = context.read<ContactsProvider>();
-      recipient = contactsProvider.contacts.where((contact) {
-        return contact.publicKeyHex == recipientPublicKeyHex;
-      }).firstOrNull;
-    }
-
-    await _onRecipientSelected(type, recipient);
-    if (!mounted) return;
-    _focusNode.requestFocus();
-  }
-
   void _insertReplyMention(String displayName, {TextRange? replacementRange}) {
     final trimmedName = displayName.trim();
     if (trimmedName.isEmpty) return;
@@ -746,7 +791,11 @@ class _MessagesTabState extends State<MessagesTab> {
       }
     }
 
-    await _onRecipientSelected(destinationType, recipient);
+    await _onRecipientSelected(
+      destinationType,
+      recipient,
+      persistSelection: !_isDestinationLocked,
+    );
     if (!mounted) return;
     if ((message.isChannelMessage || recipient?.isRoom == true) &&
         senderDisplayName != null &&
@@ -943,6 +992,69 @@ class _MessagesTabState extends State<MessagesTab> {
     }
   }
 
+  bool _isContactDestination() {
+    return _destinationType ==
+            MessageDestinationPreferences.destinationTypeContact &&
+        _selectedRecipient != null;
+  }
+
+  void _showSendModeSheet() {
+    if (!mounted) return;
+    final l10n = AppLocalizations.of(context)!;
+
+    showModalBottomSheet<void>(
+      context: context,
+      builder: (sheetContext) {
+        return SafeArea(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              ListTile(
+                leading: const Icon(Icons.route),
+                title: Text(l10n.autoSend),
+                subtitle: Text(l10n.autoSendDescription),
+                onTap: () {
+                  Navigator.pop(sheetContext);
+                  _sendMessage();
+                },
+              ),
+              ListTile(
+                leading: const Icon(Icons.near_me),
+                title: Text(l10n.sendDirect),
+                subtitle: Text(l10n.sendDirectDescription),
+                onTap: () async {
+                  Navigator.pop(sheetContext);
+                  final connectionProvider = context.read<ConnectionProvider>();
+                  if (_selectedRecipient != null &&
+                      connectionProvider.deviceInfo.isConnected) {
+                    await connectionProvider
+                        .setContactDirect(_selectedRecipient!);
+                  }
+                  await _sendMessage();
+                },
+              ),
+              ListTile(
+                leading: const Icon(Icons.cell_tower),
+                title: Text(l10n.sendFlood),
+                subtitle: Text(l10n.sendFloodDescription),
+                onTap: () async {
+                  Navigator.pop(sheetContext);
+                  final connectionProvider = context.read<ConnectionProvider>();
+                  if (_selectedRecipient != null &&
+                      connectionProvider.deviceInfo.isConnected) {
+                    await connectionProvider
+                        .resetPath(_selectedRecipient!.publicKey);
+                  }
+                  await _sendMessage();
+                },
+              ),
+            ],
+          ),
+        );
+      },
+    );
+  }
+
   Future<void> _startTicTacToeGame() async {
     if (!mounted) return;
     if (_destinationType !=
@@ -2379,6 +2491,7 @@ class _MessagesTabState extends State<MessagesTab> {
                   bottomPadding: composerBottomPadding,
                   destinationLabel: _getDestinationLabel(),
                   destinationAvatar: _buildDestinationAvatar(context),
+                  destinationLocked: _isDestinationLocked,
                   mentionSuggestions: _mentionSuggestions,
                   mentionQuery: _mentionQuery,
                   onMentionSelected: _selectMention,
@@ -2387,6 +2500,9 @@ class _MessagesTabState extends State<MessagesTab> {
                   onStartVoiceRecording: _startVoiceRecording,
                   onStopAndSendVoice: _stopAndSendVoice,
                   onSendMessage: _sendMessage,
+                  onLongPressSend: _isContactDestination()
+                      ? _showSendModeSheet
+                      : null,
                   regionScopeName: _channelRegionScopeName,
                   onRegionScopeTap: _channelRegionScopeName != null
                       ? _showRegionScopeSheet

lib/screens/sensors_tab.dart

@@ -6,7 +6,9 @@ import 'package:provider/provider.dart';
 import '../models/contact.dart';
 import '../providers/connection_provider.dart';
 import '../providers/contacts_provider.dart';
+import '../providers/map_provider.dart';
 import '../providers/sensors_provider.dart';
+import '../widgets/contacts/ping_contact_sheet.dart';
 import '../widgets/sensors/bthome_met_history_sheet.dart';
 import '../widgets/sensors/sensor_telemetry_card.dart';
 import '../l10n/app_localizations.dart';
@@ -21,7 +23,10 @@ class SensorsTab extends StatefulWidget {
 }
 
 class _SensorsTabState extends State<SensorsTab> {
+  static const Duration _autoRefreshTickInterval = Duration(seconds: 30);
   Timer? _minuteTicker;
+  final Map<String, DateTime> _lastCenteredTelemetryAtBySensor =
+      <String, DateTime>{};
 
   @override
   void initState() {
@@ -61,22 +66,8 @@ class _SensorsTabState extends State<SensorsTab> {
       return;
     }
 
-    final now = DateTime.now();
-    final nextMinute = DateTime(
-      now.year,
-      now.month,
-      now.day,
-      now.hour,
-      now.minute + 1,
-    );
-    final delay = nextMinute.difference(now);
-
-    _minuteTicker = Timer(delay, () {
-      if (!mounted) return;
+    _minuteTicker = Timer.periodic(_autoRefreshTickInterval, (_) {
       unawaited(_handleMinuteTick());
-      _minuteTicker = Timer.periodic(const Duration(minutes: 1), (_) {
-        unawaited(_handleMinuteTick());
-      });
     });
   }
 
@@ -225,6 +216,65 @@ class _SensorsTabState extends State<SensorsTab> {
     );
   }
 
+  void _maybeCenterMapOnTelemetryUpdate(
+    Iterable<String> sensorKeys, {
+    required SensorsProvider sensorsProvider,
+    required ContactsProvider contactsProvider,
+    required ConnectionProvider connectionProvider,
+  }) {
+    if (!widget.isActive) {
+      return;
+    }
+
+    Contact? latestContact;
+    DateTime? latestTimestamp;
+
+    for (final key in sensorKeys) {
+      final contact = sensorsProvider.contactForDisplay(
+        key,
+        contactsProvider: contactsProvider,
+        connectionProvider: connectionProvider,
+      );
+      final timestamp = contact?.telemetry?.timestamp;
+      final location = contact?.displayLocation;
+      if (contact == null || timestamp == null || location == null) {
+        continue;
+      }
+
+      final previousTimestamp = _lastCenteredTelemetryAtBySensor[key];
+      if (previousTimestamp != null && !timestamp.isAfter(previousTimestamp)) {
+        continue;
+      }
+
+      if (latestTimestamp == null || timestamp.isAfter(latestTimestamp)) {
+        latestContact = contact;
+        latestTimestamp = timestamp;
+      }
+    }
+
+    if (latestContact == null || latestTimestamp == null) {
+      return;
+    }
+
+    _lastCenteredTelemetryAtBySensor[latestContact.publicKeyHex] =
+        latestTimestamp;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted || !widget.isActive) {
+        return;
+      }
+
+      final location = latestContact!.displayLocation;
+      if (location == null) {
+        return;
+      }
+
+      context.read<MapProvider>().navigateToLocation(
+        location: location,
+        zoom: 15.0,
+      );
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -247,6 +297,16 @@ class _SensorsTabState extends State<SensorsTab> {
                 contactsProvider: contactsProvider,
                 connectionProvider: connectionProvider,
               );
+              final displayKeys = <String>[
+                ...?selfDisplayKey == null ? null : <String>[selfDisplayKey],
+                ...watchedKeys,
+              ];
+              _maybeCenterMapOnTelemetryUpdate(
+                displayKeys,
+                sensorsProvider: sensorsProvider,
+                contactsProvider: contactsProvider,
+                connectionProvider: connectionProvider,
+              );
               final hasAnyCards =
                   selfDisplayKey != null || watchedKeys.isNotEmpty;
 
@@ -278,6 +338,7 @@ class _SensorsTabState extends State<SensorsTab> {
                     child: SensorTelemetryCard(
                       contact: contact,
                       state: sensorsProvider.stateFor(key),
+                      showActionSheetOnTap: true,
                       visibleFields: visibleFields,
                       fieldOrder: sensorsProvider.metricOrderFor(
                         key,
@@ -310,6 +371,23 @@ class _SensorsTabState extends State<SensorsTab> {
                         contactsProvider: contactsProvider,
                         connectionProvider: connectionProvider,
                       ),
+                      onPing: contact == null
+                          ? null
+                          : () async {
+                              await showModalBottomSheet<void>(
+                                context: context,
+                                isScrollControlled: true,
+                                backgroundColor:
+                                    Theme.of(context).colorScheme.surface,
+                                shape: const RoundedRectangleBorder(
+                                  borderRadius: BorderRadius.vertical(
+                                    top: Radius.circular(16),
+                                  ),
+                                ),
+                                builder: (context) =>
+                                    PingContactSheet(contact: contact),
+                              );
+                            },
                     ),
                   ),
                 );

lib/screens/settings_screen.dart

@@ -25,6 +25,7 @@ import '../services/update_checker_service.dart';
 import '../services/voice_bitrate_preferences.dart';
 import '../services/image_preferences.dart';
 import '../services/route_hash_preferences.dart';
+import '../services/message_destination_preferences.dart';
 import '../services/image_codec_service.dart';
 import '../services/developer_mode_service.dart';
 import '../services/notification_service.dart';
@@ -37,6 +38,7 @@ import '../utils/voice_message_parser.dart';
 import '../theme/app_theme.dart';
 import '../l10n/app_localizations.dart';
 import '../widgets/update_dialog.dart';
+import '../widgets/settings/traffic_stats_reporting_section.dart';
 import 'sar_template_management_screen.dart';
 import 'profiles_screen.dart';
 import 'welcome_wizard_screen.dart';
@@ -60,6 +62,8 @@ class SettingsScreen extends StatefulWidget {
 }
 
 class _SettingsScreenState extends State<SettingsScreen> {
+  static const String _publicChannelPublicKeyHex =
+      '0000000000000000000000000000000000000000000000000000000000000000';
   late AppThemeMode _selectedTheme;
   late Locale? _selectedLocale;
   PackageInfo? _packageInfo;
@@ -91,6 +95,10 @@ class _SettingsScreenState extends State<SettingsScreen> {
   bool _muteForegroundNotifications = true;
   bool _isDeveloperModeEnabled = false;
   bool _profilesEnabled = false;
+  bool _messageDestinationLockEnabled = false;
+  String _messageDestinationLockType =
+      MessageDestinationPreferences.destinationTypeChannel;
+  String? _messageDestinationLockPublicKey = _publicChannelPublicKeyHex;
   DateTime? _onlineTraceCacheUpdatedAt;
   bool _isClearingOnlineTraceCache = false;
   int _versionTapCount = 0;
@@ -114,6 +122,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
     _loadOnlineTraceCacheStatus();
     _loadMapPreferences();
     _loadNotificationPreferences();
+    _loadMessageDestinationLock();
   }
 
   @override
@@ -184,6 +193,94 @@ class _SettingsScreenState extends State<SettingsScreen> {
     });
   }
 
+  Future<void> _loadMessageDestinationLock() async {
+    final lockedDestination =
+        await MessageDestinationPreferences.getLockedDestination();
+    if (!mounted) return;
+
+    setState(() {
+      _messageDestinationLockEnabled = lockedDestination != null;
+      _messageDestinationLockType =
+          lockedDestination?['publicKey'] == null
+          ? MessageDestinationPreferences.destinationTypeChannel
+          : lockedDestination?['type'] ??
+                MessageDestinationPreferences.destinationTypeChannel;
+      _messageDestinationLockPublicKey =
+          lockedDestination?['publicKey'] ?? _publicChannelPublicKeyHex;
+    });
+  }
+
+  List<Contact> _messageDestinationLockOptions(
+    ContactsProvider contactsProvider,
+  ) {
+    final channels = List<Contact>.from(contactsProvider.channels)
+      ..sort((a, b) {
+        if (a.isPublicChannel != b.isPublicChannel) {
+          return a.isPublicChannel ? -1 : 1;
+        }
+        return a.displayName.toLowerCase().compareTo(
+          b.displayName.toLowerCase(),
+        );
+      });
+    final rooms = List<Contact>.from(contactsProvider.rooms)
+      ..sort(
+        (a, b) => a.displayName.toLowerCase().compareTo(
+          b.displayName.toLowerCase(),
+        ),
+      );
+
+    return [...channels, ...rooms];
+  }
+
+  String _messageDestinationLockLabel(BuildContext context, Contact contact) {
+    final name = contact.isChannel
+        ? contact.getLocalizedDisplayName(context)
+        : contact.displayName;
+    return contact.isRoom ? 'Room: $name' : 'Channel: $name';
+  }
+
+  String _messageDestinationLockTypeForContact(Contact contact) {
+    return contact.isRoom
+        ? MessageDestinationPreferences.destinationTypeRoom
+        : MessageDestinationPreferences.destinationTypeChannel;
+  }
+
+  String? _selectedMessageDestinationLockValue(List<Contact> destinations) {
+    final currentValue = _messageDestinationLockPublicKey;
+    if (currentValue != null &&
+        destinations.any((contact) => contact.publicKeyHex == currentValue)) {
+      return currentValue;
+    }
+
+    return destinations.isEmpty ? null : destinations.first.publicKeyHex;
+  }
+
+  Future<void> _setMessageDestinationLock({
+    required bool enabled,
+    String? type,
+    String? recipientPublicKey,
+  }) async {
+    final nextType = type ?? _messageDestinationLockType;
+    final nextRecipientPublicKey =
+        recipientPublicKey ??
+        _messageDestinationLockPublicKey ??
+        _publicChannelPublicKeyHex;
+
+    await MessageDestinationPreferences.setLockedDestination(
+      enabled: enabled,
+      type: nextType,
+      recipientPublicKey: enabled ? nextRecipientPublicKey : null,
+    );
+
+    if (!mounted) return;
+
+    setState(() {
+      _messageDestinationLockEnabled = enabled;
+      _messageDestinationLockType = nextType;
+      _messageDestinationLockPublicKey = nextRecipientPublicKey;
+    });
+  }
+
   Future<void> _handleVersionTap() async {
     if (_isDeveloperModeEnabled) {
       await DeveloperModeService.setEnabled(false);
@@ -426,6 +523,23 @@ class _SettingsScreenState extends State<SettingsScreen> {
     return 'Channel $channelIdx unavailable';
   }
 
+  Future<void> _sendTestFastLocationUpdate() async {
+    final appProvider = context.read<AppProvider>();
+    final sent = await appProvider.sendTestFastLocationUpdate();
+    if (!mounted) return;
+
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text(
+          sent
+              ? 'Test fast GPS update sent.'
+              : 'Unable to send test fast GPS update.',
+        ),
+        backgroundColor: sent ? Colors.green : Colors.orange,
+      ),
+    );
+  }
+
   Future<void> _editFastLocationChannel() async {
     final channels =
         List<Contact>.from(context.read<ContactsProvider>().channels)
@@ -1413,6 +1527,90 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 },
               ),
             ),
+            SwitchListTile(
+              secondary: const Icon(Icons.lock_outline),
+              title: const Text('Lock messages to one channel or room'),
+              subtitle: const Text(
+                'Keep the Messages tab and composer fixed on one destination. Direct messages from Contacts still open as usual.',
+              ),
+              value: _messageDestinationLockEnabled,
+              onChanged: (value) async {
+                final contactsProvider = context.read<ContactsProvider>();
+                final options = _messageDestinationLockOptions(
+                  contactsProvider,
+                );
+                final selectedPublicKey =
+                    _selectedMessageDestinationLockValue(options) ??
+                    _publicChannelPublicKeyHex;
+                final selectedContact = options.where((contact) {
+                  return contact.publicKeyHex == selectedPublicKey;
+                }).firstOrNull;
+
+                await _setMessageDestinationLock(
+                  enabled: value,
+                  type: selectedContact == null
+                      ? MessageDestinationPreferences.destinationTypeChannel
+                      : _messageDestinationLockTypeForContact(selectedContact),
+                  recipientPublicKey: selectedPublicKey,
+                );
+              },
+            ),
+            Consumer<ContactsProvider>(
+              builder: (context, contactsProvider, child) {
+                final options = _messageDestinationLockOptions(
+                  contactsProvider,
+                );
+                final selectedValue =
+                    _selectedMessageDestinationLockValue(options);
+
+                return Padding(
+                  padding: const EdgeInsets.fromLTRB(16, 12, 16, 16),
+                  child: DropdownButtonFormField<String>(
+                    key: ValueKey(selectedValue),
+                    initialValue: selectedValue,
+                    isExpanded: true,
+                    decoration: const InputDecoration(
+                      labelText: 'Locked channel or room',
+                      prefixIcon: Icon(Icons.forum_outlined),
+                      border: OutlineInputBorder(),
+                    ),
+                    items: [
+                      for (final contact in options)
+                        DropdownMenuItem<String>(
+                          value: contact.publicKeyHex,
+                          child: Text(
+                            _messageDestinationLockLabel(context, contact),
+                            overflow: TextOverflow.ellipsis,
+                          ),
+                        ),
+                    ],
+                    onChanged:
+                        _messageDestinationLockEnabled && options.isNotEmpty
+                        ? (value) async {
+                            if (value == null) {
+                              return;
+                            }
+
+                            final selectedContact = options.where((contact) {
+                              return contact.publicKeyHex == value;
+                            }).firstOrNull;
+                            if (selectedContact == null) {
+                              return;
+                            }
+
+                            await _setMessageDestinationLock(
+                              enabled: true,
+                              type: _messageDestinationLockTypeForContact(
+                                selectedContact,
+                              ),
+                              recipientPublicKey: value,
+                            );
+                          }
+                        : null,
+                  ),
+                );
+              },
+            ),
             ListTile(
               leading: const Icon(Icons.delete_sweep, color: Colors.red),
               title: const Text(
@@ -1854,6 +2052,15 @@ class _SettingsScreenState extends State<SettingsScreen> {
               trailing: const Icon(Icons.chevron_right),
               onTap: _editFastLocationChannel,
             ),
+            ListTile(
+              leading: const Icon(Icons.send),
+              title: const Text('Test send update'),
+              subtitle: const Text(
+                'Send one fast GPS update immediately to the configured channel.',
+              ),
+              trailing: const Icon(Icons.chevron_right),
+              onTap: _sendTestFastLocationUpdate,
+            ),
             ListTile(
               leading: Icon(Icons.location_on),
               title: Text(AppLocalizations.of(context)!.locationPermission),
@@ -1956,6 +2163,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
             ),
           _buildSectionHeader('Developer & Data'),
           _buildSettingsCard([
+            Consumer<AppProvider>(
+              builder: (context, appProvider, child) => ListenableBuilder(
+                listenable: appProvider.trafficStatsReportingService,
+                builder: (context, child) => TrafficStatsReportingSection(
+                  service: appProvider.trafficStatsReportingService,
+                ),
+              ),
+            ),
             ListTile(
               leading: Icon(Icons.bug_report),
               title: Text(AppLocalizations.of(context)!.packageName),

lib/services/live_traffic_summary.dart

@@ -3,12 +3,136 @@ import '../utils/log_rx_route_decoder.dart';
 
 enum LiveTrafficBusyness { quiet, active, busy }
 
+class LiveTrafficPacketTypeDetails {
+  final int payloadType;
+  final String title;
+  final String label;
+  final String summary;
+  final String description;
+
+  const LiveTrafficPacketTypeDetails({
+    required this.payloadType,
+    required this.title,
+    required this.label,
+    required this.summary,
+    required this.description,
+  });
+}
+
 class LiveTrafficEntry {
   final BlePacketLog log;
   final DecodedLogRxRoute? route;
 
   const LiveTrafficEntry({required this.log, required this.route});
 
+  static const List<LiveTrafficPacketTypeDetails> _knownPayloadTypes = [
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x00,
+      title: 'FLOOD REQUEST',
+      label: 'Request',
+      summary: 'Encrypted request to a known peer',
+      description:
+          'Encrypted request to a known peer. The wire payload carries destination and source hashes plus a MAC, and the decrypted body starts with a timestamp followed by application-defined request data such as stats or keepalive requests.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x01,
+      title: 'FLOOD RESPONSE',
+      label: 'Response',
+      summary: 'Encrypted reply to a request',
+      description:
+          'Encrypted reply to a Request or Anonymous request. After decryption, the body is application-defined response data with no single generic response envelope.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x02,
+      title: 'FLOOD TEXT',
+      label: 'Text message',
+      summary: 'Encrypted direct text with timestamp and retry flags',
+      description:
+          'Encrypted direct text message to a known peer. The decrypted body contains a timestamp, a flags and attempt byte, and the message text.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x03,
+      title: 'FLOOD ACK',
+      label: 'Ack',
+      summary: '4-byte acknowledgement for an earlier message',
+      description:
+          'Short acknowledgement proving that a prior message was received. It carries a 4-byte checksum derived from the original message data.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x04,
+      title: 'FLOOD ADVERTISEMENT',
+      label: 'Advertisement',
+      summary: 'Signed node identity broadcast',
+      description:
+          'Signed node advertisement announcing a device identity plus app data such as a name or location. Receivers verify the signature before accepting it.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x05,
+      title: 'FLOOD GROUP_TEXT',
+      label: 'Group text',
+      summary: 'Encrypted channel text matched by channel hash',
+      description:
+          'Encrypted channel text message. It is matched by the first byte of SHA256(channel secret), then decrypted with the channel key. The plaintext is usually in the form "<sender name>: <message body>".',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x06,
+      title: 'FLOOD GROUP_DATA',
+      label: 'Group datagram',
+      summary: 'Encrypted channel data with type and length',
+      description:
+          'Encrypted channel datagram. After channel-hash matching and decryption, the body starts with a 16-bit data type and a 1-byte data length before the application payload.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x07,
+      title: 'FLOOD ANON_REQUEST',
+      label: 'Anonymous request',
+      summary: 'Request using an ephemeral sender key',
+      description:
+          'Encrypted request to a destination hash without using a stored sender identity. The packet includes the sender\'s ephemeral public key so the receiver can derive the shared secret.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x08,
+      title: 'FLOOD RETURNED_PATH',
+      label: 'Returned path',
+      summary:
+          'Return route back to the sender, with optional bundled ACK or response',
+      description:
+          'Path reply sent back to the original author to describe the route a received packet took. MeshCore stores that returned path as the peer\'s direct out-path and can bundle an ACK or response in the same payload.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x09,
+      title: 'FLOOD TRACE_PATH',
+      label: 'Trace path',
+      summary: 'Direct trace that records SNR at each hop',
+      description:
+          'Direct diagnostic packet that walks a supplied path and appends one SNR sample per hop. When it reaches the end of the path, the initiator can inspect hop-by-hop link quality.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x0A,
+      title: 'FLOOD MULTIPART',
+      label: 'Multipart packet',
+      summary: 'Wrapper for one packet in a multipart sequence',
+      description:
+          'Packet wrapper used when a logical message is split into a sequence. Current MeshCore code uses it for multipart ACKs, where the first nibble says how many parts remain.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x0B,
+      title: 'FLOOD CONTROL',
+      label: 'Control packet',
+      summary: 'Discovery or other control data',
+      description:
+          'Control or discovery payload, typically unencrypted. Current documented subtypes are discovery request and response packets used to find nearby nodes and report SNR.',
+    ),
+    LiveTrafficPacketTypeDetails(
+      payloadType: 0x0F,
+      title: 'RAW CUSTOM',
+      label: 'Custom packet',
+      summary: 'Application-defined custom packet',
+      description:
+          'Application-defined raw packet bytes for custom encryption or custom payload formats. MeshCore leaves the inner format up to the higher-level application.',
+    ),
+  ];
+
   bool get isMultiHop => (route?.hopCount ?? 0) > 1;
 
   int? get hopCount => route?.hopCount;
@@ -37,66 +161,39 @@ class LiveTrafficEntry {
         .join(' -> ');
   }
 
-  static String payloadTypeLabel(int payloadType) {
-    switch (payloadType) {
-      case 0x00:
-        return 'Request';
-      case 0x01:
-        return 'Response';
-      case 0x02:
-        return 'Text message';
-      case 0x03:
-        return 'Ack';
-      case 0x04:
-        return 'Advertisement';
-      case 0x05:
-        return 'Group text';
-      case 0x06:
-        return 'Group datagram';
-      case 0x07:
-        return 'Anonymous request';
-      case 0x08:
-        return 'Returned path';
-      case 0x09:
-        return 'Trace path';
-      case 0x0A:
-        return 'Multipart packet';
-      case 0x0B:
-        return 'Control packet';
-      default:
-        return '0x${payloadType.toRadixString(16).padLeft(2, '0')}';
+  static List<LiveTrafficPacketTypeDetails> get knownPayloadTypes =>
+      _knownPayloadTypes;
+
+  static LiveTrafficPacketTypeDetails payloadTypeDetails(int payloadType) {
+    for (final details in _knownPayloadTypes) {
+      if (details.payloadType == payloadType) {
+        return details;
+      }
     }
+    return LiveTrafficPacketTypeDetails(
+      payloadType: payloadType,
+      title: '0x${payloadType.toRadixString(16).padLeft(2, '0').toUpperCase()}',
+      label: '0x${payloadType.toRadixString(16).padLeft(2, '0')}',
+      summary: 'Unknown or application-specific protocol payload',
+      description:
+          'Unknown or application-specific packet type. Check the current MeshCore firmware or app-specific protocol docs for the exact payload format.',
+    );
+  }
+
+  static String payloadTypeLabel(int payloadType) {
+    return payloadTypeDetails(payloadType).label;
+  }
+
+  static String payloadTypeTitle(int payloadType) {
+    return payloadTypeDetails(payloadType).title;
   }
 
   static String payloadTypeMeaning(int payloadType) {
-    switch (payloadType) {
-      case 0x00:
-        return 'Request (destination/source hashes + MAC)';
-      case 0x01:
-        return 'Response to Request or Anonymous request';
-      case 0x02:
-        return 'Plain text message';
-      case 0x03:
-        return 'Simple acknowledgement';
-      case 0x04:
-        return 'Node advertisement';
-      case 0x05:
-        return 'Unverified group text message';
-      case 0x06:
-        return 'Unverified group datagram';
-      case 0x07:
-        return 'Generic anonymous request';
-      case 0x08:
-        return 'Returned path payload';
-      case 0x09:
-        return 'Trace path collecting hop SNR';
-      case 0x0A:
-        return 'One packet from a multipart set';
-      case 0x0B:
-        return 'Control or discovery packet';
-      default:
-        return 'protocol payload';
-    }
+    return payloadTypeDetails(payloadType).summary;
+  }
+
+  static String payloadTypeDescription(int payloadType) {
+    return payloadTypeDetails(payloadType).description;
   }
 }
 

lib/services/message_destination_preferences.dart

@@ -5,6 +5,12 @@ import 'package:shared_preferences/shared_preferences.dart';
 class MessageDestinationPreferences {
   static const String _destinationTypeKey = 'message_destination_type';
   static const String _recipientPublicKeyKey = 'message_recipient_public_key';
+  static const String _lockedDestinationEnabledKey =
+      'message_locked_destination_enabled';
+  static const String _lockedDestinationTypeKey =
+      'message_locked_destination_type';
+  static const String _lockedRecipientPublicKeyKey =
+      'message_locked_recipient_public_key';
 
   /// Destination types
   static const String destinationTypeAll = 'all';
@@ -12,6 +18,10 @@ class MessageDestinationPreferences {
   static const String destinationTypeContact = 'contact';
   static const String destinationTypeRoom = 'room';
 
+  static bool isLockableDestinationType(String type) {
+    return type == destinationTypeChannel || type == destinationTypeRoom;
+  }
+
   /// Get the saved destination configuration
   /// Returns a map with 'type' and optional 'publicKey'
   /// Returns null if no preference is saved (defaults to public channel)
@@ -53,6 +63,53 @@ class MessageDestinationPreferences {
     await prefs.remove(_recipientPublicKeyKey);
   }
 
+  /// Get the saved locked destination configuration.
+  /// Returns null when the lock is disabled.
+  static Future<Map<String, String>?> getLockedDestination() async {
+    final prefs = await SharedPreferences.getInstance();
+    final isEnabled = prefs.getBool(_lockedDestinationEnabledKey) ?? false;
+
+    if (!isEnabled) {
+      return null;
+    }
+
+    final savedType =
+        prefs.getString(_lockedDestinationTypeKey) ?? destinationTypeChannel;
+    final type = isLockableDestinationType(savedType)
+        ? savedType
+        : destinationTypeChannel;
+    final publicKey = prefs.getString(_lockedRecipientPublicKeyKey);
+
+    return {'type': type, 'publicKey': ?publicKey};
+  }
+
+  static Future<void> setLockedDestination({
+    required bool enabled,
+    String type = destinationTypeChannel,
+    String? recipientPublicKey,
+  }) async {
+    final prefs = await SharedPreferences.getInstance();
+
+    await prefs.setBool(_lockedDestinationEnabledKey, enabled);
+
+    if (!enabled) {
+      await prefs.remove(_lockedDestinationTypeKey);
+      await prefs.remove(_lockedRecipientPublicKeyKey);
+      return;
+    }
+
+    final sanitizedType = isLockableDestinationType(type)
+        ? type
+        : destinationTypeChannel;
+    await prefs.setString(_lockedDestinationTypeKey, sanitizedType);
+
+    if (recipientPublicKey != null) {
+      await prefs.setString(_lockedRecipientPublicKeyKey, recipientPublicKey);
+    } else {
+      await prefs.remove(_lockedRecipientPublicKeyKey);
+    }
+  }
+
   /// Get display name for destination type
   static String getDestinationTypeName(String type) {
     switch (type) {

lib/services/message_storage_service.dart

@@ -58,10 +58,7 @@ class MessageStorageService {
           : jsonList;
 
       final jsonString = jsonEncode(limitedList);
-      await prefs.setString(
-        _key(_messagesKey, namespace: namespace),
-        jsonString,
-      );
+      final messagesKey = _key(_messagesKey, namespace: namespace);
       final retainedMessageIds = limitedList
           .map((entry) => entry['id'] as String)
           .toSet();
@@ -89,22 +86,41 @@ class MessageStorageService {
           routeMetadataJson[entry.key] = entry.value.toJson();
         }
       }
-      await prefs.setString(
-        _key(_messageContactLocationsKey, namespace: namespace),
-        jsonEncode(locationJson),
+      final contactLocationsKey = _key(
+        _messageContactLocationsKey,
+        namespace: namespace,
       );
-      await prefs.setString(
-        _key(_messageReceptionDetailsKey, namespace: namespace),
-        jsonEncode(receptionJson),
+      final receptionDetailsKey = _key(
+        _messageReceptionDetailsKey,
+        namespace: namespace,
       );
-      await prefs.setString(
-        _key(_messageTransferDetailsKey, namespace: namespace),
-        jsonEncode(transferJson),
+      final transferDetailsKey = _key(
+        _messageTransferDetailsKey,
+        namespace: namespace,
       );
-      await prefs.setString(
-        _key(_messageRouteMetadataKey, namespace: namespace),
-        jsonEncode(routeMetadataJson),
+      final routeMetadataKey = _key(
+        _messageRouteMetadataKey,
+        namespace: namespace,
       );
+      final locationJsonString = jsonEncode(locationJson);
+      final receptionJsonString = jsonEncode(receptionJson);
+      final transferJsonString = jsonEncode(transferJson);
+      final routeMetadataJsonString = jsonEncode(routeMetadataJson);
+      final hasChanges =
+          prefs.getString(messagesKey) != jsonString ||
+          prefs.getString(contactLocationsKey) != locationJsonString ||
+          prefs.getString(receptionDetailsKey) != receptionJsonString ||
+          prefs.getString(transferDetailsKey) != transferJsonString ||
+          prefs.getString(routeMetadataKey) != routeMetadataJsonString;
+      if (!hasChanges) {
+        return;
+      }
+
+      await prefs.setString(messagesKey, jsonString);
+      await prefs.setString(contactLocationsKey, locationJsonString);
+      await prefs.setString(receptionDetailsKey, receptionJsonString);
+      await prefs.setString(transferDetailsKey, transferJsonString);
+      await prefs.setString(routeMetadataKey, routeMetadataJsonString);
 
       debugPrint(
         '✅ [MessageStorage] Saved ${limitedList.length} messages to storage',

lib/services/path_history_service.dart

@@ -11,34 +11,59 @@ import '../utils/log_rx_route_decoder.dart';
 
 class PathHistoryService {
   static const String _storageKey = 'contact_path_history_v2';
+  static const String _suppressedRouteStorageKey =
+      'contact_path_history_suppressed_routes_v1';
   static const int _maxDirectPaths = 20;
   static const int _topRotationCount = 3;
 
   final Map<String, ContactPathHistory> _cache = {};
+  final Map<String, String> _suppressedCurrentRoutes = {};
   bool _isLoaded = false;
 
   Future<void> initialize() async {
     if (_isLoaded) return;
     final prefs = await SharedPreferences.getInstance();
     final raw = prefs.getString(_storageKey);
+    final suppressedRaw = prefs.getString(_suppressedRouteStorageKey);
     if (raw == null || raw.isEmpty) {
-      _isLoaded = true;
-      return;
+      if (suppressedRaw == null || suppressedRaw.isEmpty) {
+        _isLoaded = true;
+        return;
+      }
     }
 
     try {
-      final decoded = jsonDecode(raw);
-      if (decoded is Map<String, dynamic>) {
-        for (final entry in decoded.entries) {
-          final value = entry.value;
-          if (value is Map<String, dynamic>) {
-            _cache[entry.key] = ContactPathHistory.fromJson(entry.key, value);
+      if (raw != null && raw.isNotEmpty) {
+        final decoded = jsonDecode(raw);
+        if (decoded is Map<String, dynamic>) {
+          for (final entry in decoded.entries) {
+            final value = entry.value;
+            if (value is Map<String, dynamic>) {
+              _cache[entry.key] = ContactPathHistory.fromJson(entry.key, value);
+            }
           }
         }
       }
     } catch (error) {
       debugPrint('⚠️ [PathHistoryService] Failed to load history: $error');
     }
+    try {
+      if (suppressedRaw != null && suppressedRaw.isNotEmpty) {
+        final decoded = jsonDecode(suppressedRaw);
+        if (decoded is Map<String, dynamic>) {
+          for (final entry in decoded.entries) {
+            final value = entry.value;
+            if (value is String && value.isNotEmpty) {
+              _suppressedCurrentRoutes[entry.key] = value;
+            }
+          }
+        }
+      }
+    } catch (error) {
+      debugPrint(
+        '⚠️ [PathHistoryService] Failed to load suppressed routes: $error',
+      );
+    }
     _isLoaded = true;
   }
 
@@ -50,6 +75,9 @@ class PathHistoryService {
 
     final history = _historyFor(contact.publicKeyHex);
     final signature = _signature(contact.routePathBytes);
+    if (_suppressedCurrentRoutes[contact.publicKeyHex] == signature) {
+      return;
+    }
     final existing = _findDirectPath(history.directPaths, signature);
     final updated = PathRecord(
       pathBytes: contact.routePathBytes.toList(),
@@ -100,6 +128,10 @@ class PathHistoryService {
     final signature = normalizedPathBytes
         .map((byte) => byte.toRadixString(16).padLeft(2, '0'))
         .join();
+    _clearSuppressedRoute(
+      contactPublicKeyHex,
+      signature: signature,
+    );
     final existing = _findDirectPath(history.directPaths, signature);
     final updated = PathRecord(
       pathBytes: normalizedPathBytes,
@@ -209,12 +241,18 @@ class PathHistoryService {
     }
 
     final signature = _signature(selection.pathBytes);
+    _clearSuppressedRoute(
+      contactPublicKeyHex,
+      signature: signature,
+    );
     final existing = _findDirectPath(history.directPaths, signature);
     final updated = PathRecord(
       pathBytes: selection.pathBytes.toList(),
       hopCount: selection.hopCount,
       hashSize: selection.hashSize,
-      source: existing?.source ?? PathRecordSource.learned,
+      source: success
+          ? PathRecordSource.learned
+          : existing?.source ?? PathRecordSource.learned,
       successCount: (existing?.successCount ?? 0) + (success ? 1 : 0),
       failureCount: (existing?.failureCount ?? 0) + (success ? 0 : 1),
       lastRoundTripTimeMs: success
@@ -290,6 +328,26 @@ class PathHistoryService {
         ContactPathHistory.empty(contactPublicKeyHex);
   }
 
+  Future<void> clearHistoryFor(String contactPublicKeyHex) async {
+    await initialize();
+    _cache.remove(contactPublicKeyHex);
+    _suppressedCurrentRoutes.remove(contactPublicKeyHex);
+    await _persistState();
+  }
+
+  Future<void> clearHistoryForContact(Contact contact) async {
+    await initialize();
+    _cache.remove(contact.publicKeyHex);
+    if (contact.routeHasPath && contact.routeHopCount > 0) {
+      _suppressedCurrentRoutes[contact.publicKeyHex] = _signature(
+        contact.routePathBytes,
+      );
+    } else {
+      _suppressedCurrentRoutes.remove(contact.publicKeyHex);
+    }
+    await _persistState();
+  }
+
   ContactPathHistory _historyFor(String contactPublicKeyHex) {
     return _cache.putIfAbsent(
       contactPublicKeyHex,
@@ -302,12 +360,34 @@ class PathHistoryService {
     ContactPathHistory history,
   ) async {
     _cache[contactPublicKeyHex] = history;
+    await _persistState();
+  }
+
+  void _clearSuppressedRoute(String contactPublicKeyHex, {String? signature}) {
+    final suppressedSignature = _suppressedCurrentRoutes[contactPublicKeyHex];
+    if (suppressedSignature == null) {
+      return;
+    }
+    if (signature == null || suppressedSignature == signature) {
+      _suppressedCurrentRoutes.remove(contactPublicKeyHex);
+    }
+  }
+
+  Future<void> _persistState() async {
     final prefs = await SharedPreferences.getInstance();
     final payload = <String, dynamic>{};
     for (final entry in _cache.entries) {
       payload[entry.key] = entry.value.toJson();
     }
+    final suppressedPayload = <String, dynamic>{};
+    for (final entry in _suppressedCurrentRoutes.entries) {
+      suppressedPayload[entry.key] = entry.value;
+    }
     await prefs.setString(_storageKey, jsonEncode(payload));
+    await prefs.setString(
+      _suppressedRouteStorageKey,
+      jsonEncode(suppressedPayload),
+    );
   }
 
   List<PathRecord> _upsertDirectPath(

lib/services/traffic_stats_reporting_service.dart

@@ -0,0 +1,508 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:package_info_plus/package_info_plus.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../models/ble_packet_log.dart';
+import '../utils/log_rx_route_decoder.dart';
+import 'live_traffic_summary.dart';
+
+class TrafficStatsCounts {
+  static const List<String> packetTypeKeys = <String>[
+    'pt_00',
+    'pt_01',
+    'pt_02',
+    'pt_03',
+    'pt_04',
+    'pt_05',
+    'pt_06',
+    'pt_07',
+    'pt_08',
+    'pt_09',
+    'pt_0a',
+    'pt_0b',
+    'pt_0c',
+    'pt_0d',
+    'pt_0e',
+    'pt_0f',
+  ];
+  static const List<String> pathModeKeys = <String>[
+    'path_mode_1b',
+    'path_mode_2b',
+    'path_mode_3b',
+    'path_mode_none',
+    'path_mode_unknown',
+  ];
+  static const String decodeFailKey = 'decode_fail';
+  static const List<String> allKeys = <String>[
+    ...packetTypeKeys,
+    decodeFailKey,
+    ...pathModeKeys,
+  ];
+
+  final Map<String, int> _values;
+
+  TrafficStatsCounts._(this._values);
+
+  factory TrafficStatsCounts.empty() {
+    return TrafficStatsCounts._(
+      <String, int>{for (final key in allKeys) key: 0},
+    );
+  }
+
+  factory TrafficStatsCounts.fromJson(Map<String, dynamic>? json) {
+    final counts = TrafficStatsCounts.empty();
+    if (json == null) {
+      return counts;
+    }
+    for (final key in allKeys) {
+      counts._values[key] = (json[key] as num?)?.toInt() ?? 0;
+    }
+    return counts;
+  }
+
+  int operator [](String key) => _values[key] ?? 0;
+
+  bool get isEmpty => _values.values.every((value) => value == 0);
+
+  Map<String, int> toJson() {
+    return <String, int>{
+      for (final key in allKeys) key: _values[key] ?? 0,
+    };
+  }
+
+  void increment(String key, [int amount = 1]) {
+    _values[key] = (_values[key] ?? 0) + amount;
+  }
+
+  void incrementPacketType(int payloadType) {
+    if (payloadType < 0 || payloadType > 0x0F) {
+      increment(decodeFailKey);
+      return;
+    }
+    increment('pt_${payloadType.toRadixString(16).padLeft(2, '0')}');
+  }
+
+  void mergeFrom(TrafficStatsCounts other) {
+    for (final key in allKeys) {
+      increment(key, other[key]);
+    }
+  }
+}
+
+class TrafficStatsQueuedReport {
+  final String reportId;
+  final String deviceKey6;
+  final DateTime windowStart;
+  final DateTime windowEnd;
+  final String appVersion;
+  final TrafficStatsCounts counts;
+
+  const TrafficStatsQueuedReport({
+    required this.reportId,
+    required this.deviceKey6,
+    required this.windowStart,
+    required this.windowEnd,
+    required this.appVersion,
+    required this.counts,
+  });
+
+  factory TrafficStatsQueuedReport.fromJson(Map<String, dynamic> json) {
+    return TrafficStatsQueuedReport(
+      reportId: (json['reportId'] as String?) ?? '',
+      deviceKey6: (json['deviceKey6'] as String?) ?? '',
+      windowStart: DateTime.parse(json['windowStart'] as String).toUtc(),
+      windowEnd: DateTime.parse(json['windowEnd'] as String).toUtc(),
+      appVersion: (json['appVersion'] as String?) ?? 'unknown',
+      counts: TrafficStatsCounts.fromJson(
+        json['counts'] as Map<String, dynamic>?,
+      ),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return <String, dynamic>{
+      'reportId': reportId,
+      'deviceKey6': deviceKey6,
+      'windowStart': windowStart.toIso8601String(),
+      'windowEnd': windowEnd.toIso8601String(),
+      'appVersion': appVersion,
+      'counts': counts.toJson(),
+    };
+  }
+}
+
+class TrafficStatsReportingService extends ChangeNotifier {
+  static const String workerBaseUrl = 'https://mcstats.dz0ny.dev';
+  static final Uri dashboardUri = Uri.parse(workerBaseUrl);
+  static final Uri ingestUri = Uri.parse('$workerBaseUrl/api/ingest');
+
+  static const bool defaultEnabled = true;
+  static const int defaultIntervalMinutes = 5;
+  static const String _enabledKey = 'traffic_stats_reporting_enabled';
+  static const String _legacyIntervalKey =
+      'traffic_stats_reporting_interval_minutes';
+  static const String _queueKey = 'traffic_stats_reporting_queue';
+  static const String _lastSuccessAtKey =
+      'traffic_stats_reporting_last_success_at';
+  static const String _lastErrorKey = 'traffic_stats_reporting_last_error';
+  static const Duration _retryInterval = Duration(seconds: 30);
+
+  final http.Client _client;
+  final bool _ownsClient;
+  final DateTime Function() _now;
+  final Future<SharedPreferences> Function() _prefsProvider;
+  final Future<String> Function() _appVersionProvider;
+  final Map<int, TrafficStatsCounts> _openWindows =
+      <int, TrafficStatsCounts>{};
+  final List<TrafficStatsQueuedReport> _queue = <TrafficStatsQueuedReport>[];
+
+  String? Function()? _deviceKey6Provider;
+  Timer? _retryTimer;
+  String? _appVersion;
+  bool _enabled = defaultEnabled;
+  DateTime? _lastSuccessAt;
+  String? _lastError;
+  bool _isInitialized = false;
+  bool _isFlushingQueue = false;
+
+  TrafficStatsReportingService({
+    http.Client? client,
+    DateTime Function()? now,
+    Future<SharedPreferences> Function()? prefsProvider,
+    Future<String> Function()? appVersionProvider,
+  }) : _client = client ?? http.Client(),
+       _ownsClient = client == null,
+       _now = now ?? DateTime.now,
+       _prefsProvider = prefsProvider ?? SharedPreferences.getInstance,
+       _appVersionProvider = appVersionProvider ?? _defaultAppVersionProvider;
+
+  bool get isEnabled => _enabled;
+  int get intervalMinutes => defaultIntervalMinutes;
+  DateTime? get lastSuccessAt => _lastSuccessAt;
+  String? get lastError => _lastError;
+  bool get isInitialized => _isInitialized;
+  bool get isFlushingQueue => _isFlushingQueue;
+  int get pendingUploadCount => _queue.length;
+
+  Future<void> initialize({
+    required String? Function() deviceKey6Provider,
+  }) async {
+    _deviceKey6Provider = deviceKey6Provider;
+    final prefs = await _prefsProvider();
+    _enabled = prefs.getBool(_enabledKey) ?? defaultEnabled;
+    if (prefs.containsKey(_legacyIntervalKey)) {
+      await prefs.remove(_legacyIntervalKey);
+    }
+    final queueJson = prefs.getString(_queueKey);
+    if (queueJson != null && queueJson.isNotEmpty) {
+      final decoded = jsonDecode(queueJson);
+      if (decoded is List) {
+        _queue
+          ..clear()
+          ..addAll(
+            decoded.whereType<Map<String, dynamic>>().map(
+              TrafficStatsQueuedReport.fromJson,
+            ),
+          );
+      }
+    }
+    final lastSuccessAt = prefs.getString(_lastSuccessAtKey);
+    if (lastSuccessAt != null && lastSuccessAt.isNotEmpty) {
+      _lastSuccessAt = DateTime.tryParse(lastSuccessAt)?.toUtc();
+    }
+    final lastError = prefs.getString(_lastErrorKey);
+    if (lastError != null && lastError.isNotEmpty) {
+      _lastError = lastError;
+    }
+    try {
+      _appVersion = await _appVersionProvider();
+    } catch (_) {
+      _appVersion = 'unknown';
+    }
+    _retryTimer?.cancel();
+    _retryTimer = Timer.periodic(_retryInterval, (_) {
+      unawaited(flushPendingUploads());
+    });
+    _isInitialized = true;
+    notifyListeners();
+    await flushPendingUploads();
+  }
+
+  Future<void> setEnabled(bool enabled) async {
+    if (_enabled == enabled) {
+      return;
+    }
+    _enabled = enabled;
+    _lastError = null;
+    if (!enabled) {
+      _openWindows.clear();
+    }
+    await _saveState();
+    notifyListeners();
+    if (enabled) {
+      unawaited(flushPendingUploads());
+    }
+  }
+
+  Future<void> processLogs(List<BlePacketLog> logs) async {
+    if (!_enabled || logs.isEmpty) {
+      if (_enabled) {
+        await flushPendingUploads();
+      }
+      return;
+    }
+
+    var changed = false;
+    for (final log in logs) {
+      if (!LiveTrafficSummary.isRxDataLog(log)) {
+        continue;
+      }
+      final counts = _openWindows.putIfAbsent(
+        _windowStartFor(log.timestamp).millisecondsSinceEpoch,
+        TrafficStatsCounts.empty,
+      );
+      final route = LogRxRouteDecoder.decode(log.rawData);
+      if (route == null) {
+        counts.increment(TrafficStatsCounts.decodeFailKey);
+      } else {
+        counts.incrementPacketType(route.payloadType);
+      }
+      counts.increment(_pathModeKeyFor(log.rawData, route));
+      changed = true;
+    }
+
+    if (!changed) {
+      await flushPendingUploads();
+      return;
+    }
+
+    final queuedReports = _queueClosedWindows();
+    if (queuedReports > 0) {
+      await _saveState();
+    }
+    notifyListeners();
+    await flushPendingUploads();
+  }
+
+  Future<void> flushPendingUploads() async {
+    if (!_enabled || _queue.isEmpty || _isFlushingQueue) {
+      return;
+    }
+    final deviceKey6 = _deviceKey6Provider?.call();
+    if (deviceKey6 == null || deviceKey6.isEmpty) {
+      return;
+    }
+
+    _isFlushingQueue = true;
+    notifyListeners();
+    try {
+      while (_queue.isNotEmpty && _enabled) {
+        final report = _queue.first;
+        final response = await _client.post(
+          ingestUri,
+          headers: const <String, String>{
+            'content-type': 'application/json',
+          },
+          body: jsonEncode(report.toJson()),
+        );
+
+        if (response.statusCode < 200 || response.statusCode >= 300) {
+          _lastError = 'Upload failed (${response.statusCode})';
+          await _saveState();
+          notifyListeners();
+          return;
+        }
+
+        _queue.removeAt(0);
+        _lastError = null;
+        _lastSuccessAt = _now().toUtc();
+        await _saveState();
+        notifyListeners();
+      }
+    } catch (error) {
+      _lastError = 'Upload failed: $error';
+      await _saveState();
+      notifyListeners();
+    } finally {
+      _isFlushingQueue = false;
+      notifyListeners();
+    }
+  }
+
+  int _queueClosedWindows() {
+    final deviceKey6 = _deviceKey6Provider?.call();
+    if (deviceKey6 == null || deviceKey6.isEmpty) {
+      return 0;
+    }
+
+    final now = _now().toUtc();
+    final closable = _openWindows.keys
+        .where((windowStartMs) {
+          final windowStart = DateTime.fromMillisecondsSinceEpoch(
+            windowStartMs,
+            isUtc: true,
+          );
+          final windowEnd = windowStart.add(
+            Duration(minutes: defaultIntervalMinutes),
+          );
+          return !windowEnd.isAfter(now);
+        })
+        .toList()
+      ..sort();
+
+    for (final windowStartMs in closable) {
+      final windowStart = DateTime.fromMillisecondsSinceEpoch(
+        windowStartMs,
+        isUtc: true,
+      );
+      final counts = _openWindows.remove(windowStartMs);
+      if (counts == null || counts.isEmpty) {
+        continue;
+      }
+      final reportId = '$deviceKey6:${windowStart.toIso8601String()}';
+      final existingIndex = _queue.indexWhere(
+        (report) => report.reportId == reportId,
+      );
+      if (existingIndex != -1) {
+        _queue[existingIndex].counts.mergeFrom(counts);
+        continue;
+      }
+      _queue.add(
+        TrafficStatsQueuedReport(
+          reportId: reportId,
+          deviceKey6: deviceKey6,
+          windowStart: windowStart,
+          windowEnd: windowStart.add(
+            Duration(minutes: defaultIntervalMinutes),
+          ),
+          appVersion: _appVersion ?? 'unknown',
+          counts: counts,
+        ),
+      );
+    }
+    return closable.length;
+  }
+
+  DateTime _windowStartFor(DateTime timestamp) {
+    final utc = timestamp.toUtc();
+    final alignedMinute =
+        utc.minute - (utc.minute % defaultIntervalMinutes);
+    return DateTime.utc(
+      utc.year,
+      utc.month,
+      utc.day,
+      utc.hour,
+      alignedMinute,
+    );
+  }
+
+  String _pathModeKeyFor(Uint8List rawData, DecodedLogRxRoute? route) {
+    if (route != null) {
+      if (route.pathBytes.isEmpty) {
+        return 'path_mode_none';
+      }
+      switch (route.hashSize) {
+        case 1:
+          return 'path_mode_1b';
+        case 2:
+          return 'path_mode_2b';
+        case 3:
+          return 'path_mode_3b';
+      }
+      return 'path_mode_unknown';
+    }
+    return _pathModeKeyFromRawData(rawData);
+  }
+
+  String _pathModeKeyFromRawData(Uint8List rawData) {
+    if (rawData.length < 5 ||
+        rawData.first != LiveTrafficSummary.logRxDataResponseCode) {
+      return 'path_mode_unknown';
+    }
+
+    final rawPacketData = rawData.sublist(3);
+    if (rawPacketData.length < 2) {
+      return 'path_mode_unknown';
+    }
+
+    final header = rawPacketData[0];
+    final routeType = header & 0x03;
+    var index = 1;
+    if (routeType == 0x00 || routeType == 0x03) {
+      if (rawPacketData.length < index + 5) {
+        return 'path_mode_unknown';
+      }
+      index += 4;
+    }
+
+    if (rawPacketData.length <= index) {
+      return 'path_mode_unknown';
+    }
+
+    final pathDescriptor = rawPacketData[index];
+    final pathByteLen = LogRxRouteDecoder.descriptorByteLength(pathDescriptor);
+    if (pathByteLen == null) {
+      return 'path_mode_unknown';
+    }
+    if (rawPacketData.length < index + 1 + pathByteLen) {
+      return 'path_mode_unknown';
+    }
+    if (pathByteLen == 0) {
+      return 'path_mode_none';
+    }
+
+    final hashSize = LogRxRouteDecoder.descriptorHashSize(pathDescriptor);
+    switch (hashSize) {
+      case 1:
+        return 'path_mode_1b';
+      case 2:
+        return 'path_mode_2b';
+      case 3:
+        return 'path_mode_3b';
+    }
+    return 'path_mode_unknown';
+  }
+
+  Future<void> _saveState() async {
+    final prefs = await _prefsProvider();
+    await prefs.setBool(_enabledKey, _enabled);
+    await prefs.remove(_legacyIntervalKey);
+    await prefs.setString(
+      _queueKey,
+      jsonEncode(_queue.map((report) => report.toJson()).toList()),
+    );
+    if (_lastSuccessAt == null) {
+      await prefs.remove(_lastSuccessAtKey);
+    } else {
+      await prefs.setString(
+        _lastSuccessAtKey,
+        _lastSuccessAt!.toIso8601String(),
+      );
+    }
+    if (_lastError == null || _lastError!.isEmpty) {
+      await prefs.remove(_lastErrorKey);
+    } else {
+      await prefs.setString(_lastErrorKey, _lastError!);
+    }
+  }
+
+  static Future<String> _defaultAppVersionProvider() async {
+    final info = await PackageInfo.fromPlatform();
+    if (info.buildNumber.isEmpty || info.buildNumber == '0') {
+      return info.version;
+    }
+    return '${info.version}+${info.buildNumber}';
+  }
+
+  @override
+  void dispose() {
+    _retryTimer?.cancel();
+    if (_ownsClient) {
+      _client.close();
+    }
+    super.dispose();
+  }
+}

lib/widgets/contacts/contact_route_dialog.dart

@@ -10,7 +10,6 @@ import '../../models/path_history.dart';
 import '../../l10n/app_localizations.dart';
 import '../../providers/app_provider.dart';
 import '../../providers/connection_provider.dart';
-import '../../services/contact_route_resolver.dart';
 import '../../services/path_history_service.dart';
 import '../../services/relay_candidate_sorter.dart';
 import '../../services/route_hash_preferences.dart';
@@ -80,7 +79,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
   ParsedContactRoute? _parsedRoute;
   String? _errorText;
   bool _showRoutingInfo = false;
-  bool _showManualEditor = false;
   List<Contact> _selectedMapHops = const [];
   ContactPathHistory? _pathHistory;
 
@@ -92,7 +90,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     );
     _relaySearchController = TextEditingController();
     _controller.addListener(_reparse);
-    _showManualEditor = widget.contact.routeCanonicalText.isNotEmpty;
     _loadHashSizePreference();
     _loadPathHistory();
     _reparse();
@@ -240,19 +237,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     });
   }
 
-  void _applyResolvedPlan(ResolvedContactRoutePlan plan) {
-    setState(() {
-      _selectedMapHops = plan.selectedContacts;
-      _controller.text = plan.canonicalText;
-      _controller.selection = TextSelection.fromPosition(
-        TextPosition(offset: _controller.text.length),
-      );
-      _errorText = null;
-      _showManualEditor = false;
-    });
-    _reparse();
-  }
-
   void _applyHistoryRecord(PathRecord record) {
     final canonicalText = _canonicalRouteFromBytes(
       record.pathBytes,
@@ -264,7 +248,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
         TextPosition(offset: _controller.text.length),
       );
       _errorText = null;
-      _showManualEditor = true;
     });
     _reparse();
   }
@@ -319,39 +302,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     );
   }
 
-  void _resolvePathAutomatically() {
-    final connectionProvider = context.read<ConnectionProvider>();
-    final advLat = connectionProvider.deviceInfo.advLat;
-    final advLon = connectionProvider.deviceInfo.advLon;
-    final recipientLocation = widget.contact.displayLocation;
-    if (advLat == null ||
-        advLon == null ||
-        (advLat == 0 && advLon == 0) ||
-        recipientLocation == null) {
-      setState(() {
-        _errorText =
-            'Automatic resolve needs both your advertised location and the contact location.';
-      });
-      return;
-    }
-
-    final plan = ContactRouteResolver.resolveAutomaticRoute(
-      senderLocation: LatLng(advLat / 1e6, advLon / 1e6),
-      recipient: widget.contact,
-      availableContacts: widget.availableContacts,
-      hashSize: _selectedHashSize,
-    );
-    if (plan == null) {
-      setState(() {
-        _errorText =
-            'Could not resolve a route from available repeater locations.';
-      });
-      return;
-    }
-
-    _applyResolvedPlan(plan);
-  }
-
   String _canonicalRouteFromBytes(
     List<int> pathBytes, {
     required int hashSize,
@@ -434,32 +384,32 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
 
   Widget _buildPreviewSection() {
     final previewRoute = _effectiveRoute;
+    if (previewRoute == null) {
+      return const SizedBox.shrink();
+    }
     final colorScheme = Theme.of(context).colorScheme;
     return Container(
       width: double.infinity,
-      padding: const EdgeInsets.all(14),
+      padding: const EdgeInsets.all(12),
       decoration: BoxDecoration(
         color: colorScheme.surfaceContainerHighest.withValues(alpha: 0.5),
-        borderRadius: BorderRadius.circular(16),
+        borderRadius: BorderRadius.circular(12),
         border: Border.all(color: colorScheme.outlineVariant),
       ),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Text(
-            previewRoute == null ? 'Route preview' : previewRoute.summary,
+            previewRoute.summary,
             style: Theme.of(context).textTheme.titleSmall,
           ),
-          const SizedBox(height: 4),
+          const SizedBox(height: 2),
           Text(
-            previewRoute == null
-                ? 'Pick relays from the list below or open manual edit if you need exact hop tokens.'
-                : '${previewRoute.byteLength} bytes • descriptor 0x${previewRoute.encodedPathLen.toRadixString(16).padLeft(2, '0').toUpperCase()}',
+            '${previewRoute.byteLength}B • 0x${previewRoute.encodedPathLen.toRadixString(16).padLeft(2, '0').toUpperCase()}',
             style: Theme.of(context).textTheme.bodySmall,
           ),
-          if (previewRoute != null &&
-              previewRoute.canonicalText.isNotEmpty) ...[
-            const SizedBox(height: 10),
+          if (previewRoute.canonicalText.isNotEmpty) ...[
+            const SizedBox(height: 8),
             SelectableText(
               previewRoute.canonicalText,
               style: Theme.of(
@@ -474,18 +424,7 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
 
   Widget _buildSelectedHopSection() {
     if (_selectedMapHops.isEmpty) {
-      return Container(
-        width: double.infinity,
-        padding: const EdgeInsets.all(14),
-        decoration: BoxDecoration(
-          borderRadius: BorderRadius.circular(16),
-          border: Border.all(color: Theme.of(context).dividerColor),
-        ),
-        child: Text(
-          'No relays selected. Save now to use a direct path, or add repeaters below.',
-          style: Theme.of(context).textTheme.bodyMedium,
-        ),
-      );
+      return const SizedBox.shrink();
     }
 
     return Column(
@@ -493,28 +432,21 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
       children: [
         Text('Selected relays', style: Theme.of(context).textTheme.titleSmall),
         const SizedBox(height: 8),
-        ..._selectedMapHops.asMap().entries.map((entry) {
-          final index = entry.key;
-          final contact = entry.value;
-          return Card(
-            margin: const EdgeInsets.only(bottom: 8),
-            child: ListTile(
-              leading: CircleAvatar(child: Text('${index + 1}')),
-              title: Text(contact.displayName),
-              subtitle: Text(
-                _tokenFor(contact, _selectedHashSize),
-                style: Theme.of(
-                  context,
-                ).textTheme.bodySmall?.copyWith(fontFamily: 'monospace'),
-              ),
-              trailing: IconButton(
-                tooltip: 'Remove relay',
-                onPressed: () => _toggleHop(contact),
-                icon: const Icon(Icons.close),
-              ),
-            ),
-          );
-        }),
+        Wrap(
+          spacing: 8,
+          runSpacing: 8,
+          children: _selectedMapHops.asMap().entries.map((entry) {
+            final index = entry.key;
+            final contact = entry.value;
+            return InputChip(
+              label: Text('${index + 1}. ${contact.displayName}'),
+              deleteIcon: const Icon(Icons.close),
+              onDeleted: () => _toggleHop(contact),
+              materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+              visualDensity: VisualDensity.compact,
+            );
+          }).toList(),
+        ),
       ],
     );
   }
@@ -563,6 +495,12 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
             return Card(
               margin: const EdgeInsets.only(bottom: 8),
               child: ListTile(
+                dense: true,
+                visualDensity: VisualDensity.compact,
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 4,
+                ),
                 leading: Icon(
                   isSelected
                       ? Icons.check_circle
@@ -593,41 +531,6 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     );
   }
 
-  Widget _buildManualEditor() {
-    return ExpansionTile(
-      tilePadding: EdgeInsets.zero,
-      childrenPadding: EdgeInsets.zero,
-      initiallyExpanded: _showManualEditor,
-      onExpansionChanged: (expanded) {
-        setState(() {
-          _showManualEditor = expanded;
-        });
-      },
-      title: Text(AppLocalizations.of(context)!.manualRouteEdit),
-      subtitle: const Text(
-        'Use this when you need to paste or tweak hop tokens directly.',
-      ),
-      children: [
-        TextField(
-          controller: _controller,
-          textCapitalization: TextCapitalization.characters,
-          decoration: InputDecoration(
-            labelText: 'Route',
-            hintText: _selectedHashSize == 1
-                ? 'AA,BB,CC'
-                : _selectedHashSize == 2
-                ? 'AABB,CCDD'
-                : 'AABBCC,DDEEFF',
-            helperText:
-                'Comma-separated hops using the selected path size. Colon form like AA:BB is also accepted.',
-            errorText: _errorText,
-            border: const OutlineInputBorder(),
-          ),
-        ),
-      ],
-    );
-  }
-
   Widget _buildMapPreview({
     required List<Contact> routeCandidates,
     required List<LatLng> mapPoints,
@@ -709,15 +612,14 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
 
   Widget _buildBuilderTab({
     required List<Contact> routeCandidates,
-    required List<LatLng> mapPoints,
-    required List<LatLng> routePoints,
   }) {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         Row(
+          crossAxisAlignment: CrossAxisAlignment.center,
           children: [
-            Text('Path Size', style: Theme.of(context).textTheme.labelLarge),
+            Text('Path size', style: Theme.of(context).textTheme.labelLarge),
             const Spacer(),
             SegmentedButton<int>(
               segments: [
@@ -734,36 +636,32 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
             ),
           ],
         ),
+        if (_errorText != null) ...[
+          const SizedBox(height: 12),
+          Text(
+            _errorText!,
+            style: TextStyle(color: Theme.of(context).colorScheme.error),
+          ),
+        ],
+        if (_selectedMapHops.isNotEmpty) ...[
+          const SizedBox(height: 12),
+          _buildSelectedHopSection(),
+        ],
         const SizedBox(height: 12),
-        Wrap(
-          spacing: 8,
-          runSpacing: 8,
-          children: [
-            FilledButton.tonalIcon(
-              onPressed: _resolvePathAutomatically,
-              icon: Icon(Icons.auto_fix_high),
-              label: Text(AppLocalizations.of(context)!.autoResolve),
-            ),
-            OutlinedButton.icon(
-              onPressed: _selectedMapHops.isEmpty
-                  ? null
-                  : () {
-                      setState(() {
-                        _selectedMapHops = const [];
-                        _syncControllerFromSelectedHops();
-                      });
-                    },
-              icon: Icon(Icons.clear_all),
-              label: Text(AppLocalizations.of(context)!.clearRelays),
-            ),
-          ],
-        ),
-        const SizedBox(height: 16),
-        _buildPreviewSection(),
-        const SizedBox(height: 16),
-        _buildSelectedHopSection(),
-        const SizedBox(height: 16),
         _buildRelayPicker(routeCandidates),
+      ],
+    );
+  }
+
+  Widget _buildInfoTab({
+    required AppProvider appProvider,
+    required List<Contact> routeCandidates,
+    required List<LatLng> mapPoints,
+    required List<LatLng> routePoints,
+  }) {
+    return ListView(
+      children: [
+        _buildPreviewSection(),
         const SizedBox(height: 16),
         _buildMapPreview(
           routeCandidates: routeCandidates,
@@ -771,7 +669,18 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
           routePoints: routePoints,
         ),
         const SizedBox(height: 16),
-        _buildManualEditor(),
+        _AutomationRoutingInfo(
+          isExpanded: _showRoutingInfo,
+          onToggle: () {
+            setState(() {
+              _showRoutingInfo = !_showRoutingInfo;
+            });
+          },
+          autoRouteRotationEnabled: appProvider.autoRouteRotationEnabled,
+          nearestRelayFallbackEnabled: appProvider.nearestRelayFallbackEnabled,
+          clearPathOnMaxRetry: appProvider.clearPathOnMaxRetry,
+        ),
+        const SizedBox(height: 24),
       ],
     );
   }
@@ -808,6 +717,22 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
+        Align(
+          alignment: Alignment.centerRight,
+          child: TextButton(
+            onPressed: () async {
+              await _pathHistoryService.clearHistoryForContact(widget.contact);
+              if (!mounted) return;
+              setState(() {
+                _pathHistory = _pathHistoryService.historyFor(
+                  widget.contact.publicKeyHex,
+                );
+              });
+            },
+            child: const Text('Clear history'),
+          ),
+        ),
+        const SizedBox(height: 8),
         if (observedRecord != null) ...[
           _buildHistoryRecordTile(observedRecord, title: AppLocalizations.of(context)!.observedMeshRoute),
           const SizedBox(height: 16),
@@ -877,7 +802,7 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
     ];
 
     return DefaultTabController(
-      length: 2,
+      length: 3,
       child: Scaffold(
         appBar: AppBar(
           title: Text('Set Path for ${widget.contact.displayName}'),
@@ -885,56 +810,34 @@ class _ContactRouteDialogState extends State<ContactRouteDialog> {
             tabs: [
               Tab(text: 'Build'),
               Tab(text: 'History'),
+              Tab(text: 'Info'),
             ],
           ),
         ),
         body: SafeArea(
           child: Padding(
             padding: const EdgeInsets.fromLTRB(16, 16, 16, 0),
-            child: Column(
-              crossAxisAlignment: CrossAxisAlignment.start,
+            child: TabBarView(
               children: [
-                Text(
-                  'Plan the route on its own screen, then save it once the preview looks right.',
-                  style: Theme.of(context).textTheme.bodyMedium,
+                ListView(
+                  children: [
+                    _buildBuilderTab(
+                      routeCandidates: routeCandidates,
+                    ),
+                    const SizedBox(height: 24),
+                  ],
                 ),
-                const SizedBox(height: 16),
-                Expanded(
-                  child: TabBarView(
-                    children: [
-                      ListView(
-                        children: [
-                          _buildBuilderTab(
-                            routeCandidates: routeCandidates,
-                            mapPoints: mapPoints,
-                            routePoints: routePoints,
-                          ),
-                          const SizedBox(height: 16),
-                          _AutomationRoutingInfo(
-                            isExpanded: _showRoutingInfo,
-                            onToggle: () {
-                              setState(() {
-                                _showRoutingInfo = !_showRoutingInfo;
-                              });
-                            },
-                            autoRouteRotationEnabled:
-                                appProvider.autoRouteRotationEnabled,
-                            nearestRelayFallbackEnabled:
-                                appProvider.nearestRelayFallbackEnabled,
-                            clearPathOnMaxRetry:
-                                appProvider.clearPathOnMaxRetry,
-                          ),
-                          const SizedBox(height: 24),
-                        ],
-                      ),
-                      ListView(
-                        children: [
-                          _buildHistoryTab(),
-                          const SizedBox(height: 24),
-                        ],
-                      ),
-                    ],
-                  ),
+                ListView(
+                  children: [
+                    _buildHistoryTab(),
+                    const SizedBox(height: 24),
+                  ],
+                ),
+                _buildInfoTab(
+                  appProvider: appProvider,
+                  routeCandidates: routeCandidates,
+                  mapPoints: mapPoints,
+                  routePoints: routePoints,
                 ),
               ],
             ),

lib/widgets/contacts/contact_tile.dart

@@ -11,8 +11,11 @@ import '../../providers/contacts_provider.dart';
 import '../../providers/map_provider.dart';
 import '../../providers/messages_provider.dart';
 import '../../providers/sensors_provider.dart';
+import '../../services/location_tracking_service.dart';
 import '../../services/message_destination_preferences.dart';
+import '../../services/path_history_service.dart';
 import 'contact_route_dialog.dart';
+import 'ping_contact_sheet.dart';
 import 'contact_trace_sheet.dart';
 import 'room_login_sheet.dart';
 import '../common/contact_avatar.dart';
@@ -529,6 +532,16 @@ class ContactTile extends StatelessWidget {
             _showNeighbours(context, contact);
           },
         ),
+      if (contact.type == ContactType.repeater ||
+          contact.type == ContactType.room)
+        _ContactSheetAction(
+          icon: Icons.network_ping,
+          label: 'Ping',
+          onTap: () async {
+            Navigator.pop(context);
+            _pingRelay(context, contact);
+          },
+        ),
       if (!contact.isPublicChannel)
         _ContactSheetAction(
           icon: Icons.edit_outlined,
@@ -664,6 +677,18 @@ class ContactTile extends StatelessWidget {
     );
   }
 
+  void _pingRelay(BuildContext context, Contact contact) {
+    showModalBottomSheet(
+      context: context,
+      isScrollControlled: true,
+      backgroundColor: Theme.of(context).colorScheme.surface,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(16)),
+      ),
+      builder: (context) => PingContactSheet(contact: contact),
+    );
+  }
+
   void _showDeleteConfirmation(
     BuildContext context,
     Contact contact, {
@@ -763,6 +788,7 @@ class ContactTile extends StatelessWidget {
   ) async {
     final contactsProvider = context.read<ContactsProvider>();
     final connectionProvider = context.read<ConnectionProvider>();
+    final pathHistoryService = PathHistoryService();
     final availableContacts = contactsProvider.contacts
         .where((candidate) => candidate.publicKeyHex != contact.publicKeyHex)
         .toList();
@@ -823,6 +849,12 @@ class ContactTile extends StatelessWidget {
         signedEncodedPathLen: parsedRoute.signedEncodedPathLen,
         paddedPathBytes: parsedRoute.paddedPathBytes,
       );
+      await pathHistoryService.clearHistoryForContact(
+        contact.copyWith(
+          outPathLen: parsedRoute.signedEncodedPathLen,
+          outPath: Uint8List.fromList(parsedRoute.paddedPathBytes),
+        ),
+      );
       if (context.mounted) {
         final routeLabel = parsedRoute.hopCount == 0
             ? AppLocalizations.of(context)!.direct
@@ -1839,16 +1871,24 @@ class _NeighboursSheetState extends State<_NeighboursSheet> {
         final parts = trimmed.split(':');
         if (parts.length >= 3) {
           final keyHex = parts[0];
-          final timestampOrMs = int.tryParse(parts[1]);
+          final timestampOrSeconds = int.tryParse(parts[1]);
           final snrRaw = int.tryParse(parts[2]);
-          final isMs = timestampOrMs != null && timestampOrMs < 1e9;
+          final isDurationSeconds =
+              timestampOrSeconds != null && timestampOrSeconds < 1000000000;
           parsed.add(
             _Neighbour(
               publicKeyHex: keyHex,
-              lastSeenAt: !isMs && timestampOrMs != null
-                  ? DateTime.fromMillisecondsSinceEpoch(timestampOrMs * 1000)
+              lastSeenAt: !isDurationSeconds && timestampOrSeconds != null
+                  ? timestampOrSeconds >= 1000000000000
+                        ? DateTime.fromMillisecondsSinceEpoch(
+                            timestampOrSeconds,
+                          )
+                        : DateTime.fromMillisecondsSinceEpoch(
+                            timestampOrSeconds * 1000,
+                          )
                   : null,
-              lastSeenMs: isMs ? timestampOrMs : null,
+              lastSeenSeconds:
+                  isDurationSeconds ? timestampOrSeconds : null,
               snrDb: snrRaw != null ? snrRaw / 4.0 : null,
             ),
           );
@@ -1896,12 +1936,12 @@ class _NeighboursSheetState extends State<_NeighboursSheet> {
           .difference(neighbour.lastSeenAt!)
           .toLocalizedTimeAgoWithSeconds(context);
     }
-    if (neighbour.lastSeenMs != null) {
-      if (neighbour.lastSeenMs! < 1000) {
+    if (neighbour.lastSeenSeconds != null) {
+      if (neighbour.lastSeenSeconds! < 1) {
         return AppLocalizations.of(context)!.justNow;
       }
       return Duration(
-        milliseconds: neighbour.lastSeenMs!,
+        seconds: neighbour.lastSeenSeconds!,
       ).toLocalizedTimeAgoWithSeconds(context);
     }
     return AppLocalizations.of(context)!.justNow;
@@ -2295,13 +2335,13 @@ class _NeighboursSheetState extends State<_NeighboursSheet> {
 class _Neighbour {
   final String publicKeyHex;
   final DateTime? lastSeenAt;
-  final int? lastSeenMs;
+  final int? lastSeenSeconds;
   final double? snrDb;
 
   const _Neighbour({
     required this.publicKeyHex,
     this.lastSeenAt,
-    this.lastSeenMs,
+    this.lastSeenSeconds,
     this.snrDb,
   });
 }
@@ -2317,3 +2357,337 @@ class _MappedNeighbour {
     required this.location,
   });
 }
+
+/// Bottom sheet for pinging a relay/repeater with history and distance.
+class _PingRelaySheet extends StatefulWidget {
+  final Contact contact;
+
+  const _PingRelaySheet({required this.contact});
+
+  @override
+  State<_PingRelaySheet> createState() => _PingRelaySheetState();
+}
+
+class _PingEntry {
+  final RelayPingResult result;
+  final DateTime timestamp;
+  final String? distance;
+
+  const _PingEntry({
+    required this.result,
+    required this.timestamp,
+    this.distance,
+  });
+}
+
+class _PingRelaySheetState extends State<_PingRelaySheet> {
+  bool _pinging = false;
+  final List<_PingEntry> _history = [];
+
+  @override
+  void initState() {
+    super.initState();
+    _doPing();
+  }
+
+  Future<void> _doPing() async {
+    setState(() => _pinging = true);
+    final connectionProvider = context.read<ConnectionProvider>();
+    final distance = _distanceText();
+    final result = await connectionProvider.pingRelay(widget.contact);
+    if (!mounted) return;
+    setState(() {
+      _pinging = false;
+      _history.insert(
+        0,
+        _PingEntry(
+          result: result,
+          timestamp: DateTime.now(),
+          distance: distance,
+        ),
+      );
+    });
+  }
+
+  String? _distanceText() {
+    final location = widget.contact.displayLocation;
+    if (location == null) return null;
+    final currentPosition = LocationTrackingService().currentPosition;
+    if (currentPosition == null) return null;
+    final meters = Geolocator.distanceBetween(
+      currentPosition.latitude,
+      currentPosition.longitude,
+      location.latitude,
+      location.longitude,
+    );
+    if (meters < 1000) return '${meters.round()} m';
+    if (meters < 10000) return '${(meters / 1000).toStringAsFixed(2)} km';
+    return '${(meters / 1000).toStringAsFixed(1)} km';
+  }
+
+  Widget _buildPill(
+    BuildContext context, {
+    required IconData icon,
+    required String label,
+    Color? iconColor,
+  }) {
+    final colorScheme = Theme.of(context).colorScheme;
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      decoration: BoxDecoration(
+        color: colorScheme.surfaceContainerHighest.withValues(alpha: 0.75),
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Icon(icon, size: 12, color: iconColor ?? colorScheme.onSurfaceVariant),
+          const SizedBox(width: 4),
+          Text(
+            label,
+            style: Theme.of(context).textTheme.labelSmall?.copyWith(
+              color: colorScheme.onSurfaceVariant,
+              fontWeight: FontWeight.w700,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildSnrPill(BuildContext context, String direction, double snrDb) {
+    final quality = linkQualityLabel(null, snrDb);
+    final color = linkQualityColor(quality);
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      decoration: BoxDecoration(
+        color: color.withValues(alpha: 0.15),
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Icon(
+            direction == 'there'
+                ? Icons.arrow_upward_rounded
+                : Icons.arrow_downward_rounded,
+            size: 12,
+            color: color,
+          ),
+          const SizedBox(width: 4),
+          Text(
+            '${snrDb.toStringAsFixed(1)} dB',
+            style: Theme.of(context).textTheme.labelSmall?.copyWith(
+              color: color,
+              fontWeight: FontWeight.w700,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildResultRow(BuildContext context, _PingEntry entry, int seq) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final r = entry.result;
+    final age = DateTime.now().difference(entry.timestamp);
+    final timeAgo = age.toLocalizedTimeAgoWithSeconds(context);
+
+    if (!r.success) {
+      return Padding(
+        padding: const EdgeInsets.symmetric(vertical: 8),
+        child: Row(
+          children: [
+            CircleAvatar(
+              radius: 12,
+              backgroundColor: colorScheme.error.withValues(alpha: 0.15),
+              child: Text(
+                '$seq',
+                style: TextStyle(
+                  color: colorScheme.error,
+                  fontSize: 10,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+            ),
+            const SizedBox(width: 10),
+            Text(
+              'Timeout',
+              style: theme.textTheme.bodySmall?.copyWith(
+                color: colorScheme.error,
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+            const Spacer(),
+            Text(
+              timeAgo,
+              style: theme.textTheme.labelSmall?.copyWith(
+                color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+              ),
+            ),
+          ],
+        ),
+      );
+    }
+
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 6),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              CircleAvatar(
+                radius: 12,
+                backgroundColor: colorScheme.surfaceContainerHighest,
+                child: Text(
+                  '$seq',
+                  style: TextStyle(
+                    color: colorScheme.onSurfaceVariant,
+                    fontSize: 10,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+              ),
+              const SizedBox(width: 10),
+              _buildPill(
+                context,
+                icon: Icons.timer_outlined,
+                label: '${r.durationMs} ms',
+              ),
+              const SizedBox(width: 6),
+              _buildSnrPill(context, 'there', r.snrThere),
+              const SizedBox(width: 6),
+              _buildSnrPill(context, 'back', r.snrBack),
+            ],
+          ),
+          Padding(
+            padding: const EdgeInsets.only(left: 34, top: 4),
+            child: Row(
+              children: [
+                if (entry.distance != null) ...[
+                  Icon(Icons.straighten, size: 10,
+                    color: colorScheme.onSurfaceVariant.withValues(alpha: 0.5)),
+                  const SizedBox(width: 3),
+                  Text(
+                    entry.distance!,
+                    style: theme.textTheme.labelSmall?.copyWith(
+                      color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+                      fontSize: 10,
+                    ),
+                  ),
+                  const SizedBox(width: 8),
+                ],
+                Icon(Icons.schedule, size: 10,
+                  color: colorScheme.onSurfaceVariant.withValues(alpha: 0.5)),
+                const SizedBox(width: 3),
+                Text(
+                  timeAgo,
+                  style: theme.textTheme.labelSmall?.copyWith(
+                    color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+                    fontSize: 10,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final displayName = widget.contact.displayName;
+
+    return SafeArea(
+      child: Padding(
+        padding: const EdgeInsets.fromLTRB(16, 12, 16, 16),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Center(
+              child: Container(
+                width: 40,
+                height: 4,
+                decoration: BoxDecoration(
+                  color: theme.dividerColor,
+                  borderRadius: BorderRadius.circular(2),
+                ),
+              ),
+            ),
+            const SizedBox(height: 14),
+            Row(
+              children: [
+                Expanded(
+                  child: Text(
+                    'Ping $displayName',
+                    style: theme.textTheme.titleLarge,
+                  ),
+                ),
+                if (_history.isNotEmpty)
+                  IconButton(
+                    onPressed: () => setState(() => _history.clear()),
+                    icon: const Icon(Icons.delete_outline, size: 20),
+                    tooltip: 'Clear history',
+                    style: IconButton.styleFrom(
+                      foregroundColor: colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                FilledButton.icon(
+                  onPressed: _pinging ? null : _doPing,
+                  icon: _pinging
+                      ? SizedBox(
+                          width: 16,
+                          height: 16,
+                          child: CircularProgressIndicator(
+                            strokeWidth: 2,
+                            color: colorScheme.onPrimary,
+                          ),
+                        )
+                      : const Icon(Icons.network_ping, size: 18),
+                  label: Text(_pinging ? 'Pinging...' : 'Ping Again'),
+                ),
+              ],
+            ),
+            const SizedBox(height: 16),
+            if (_history.isEmpty && _pinging)
+              const Padding(
+                padding: EdgeInsets.symmetric(vertical: 24),
+                child: Center(child: CircularProgressIndicator()),
+              )
+            else if (_history.isEmpty)
+              Padding(
+                padding: const EdgeInsets.symmetric(vertical: 24),
+                child: Center(
+                  child: Text(
+                    'No results yet',
+                    style: theme.textTheme.bodyMedium,
+                  ),
+                ),
+              )
+            else
+              ConstrainedBox(
+                constraints: const BoxConstraints(maxHeight: 300),
+                child: ListView.separated(
+                  shrinkWrap: true,
+                  itemCount: _history.length,
+                  separatorBuilder: (_, _) =>
+                      Divider(height: 1, color: colorScheme.outlineVariant.withValues(alpha: 0.3)),
+                  itemBuilder: (context, index) {
+                    final entry = _history[index];
+                    final seq = _history.length - index;
+                    return _buildResultRow(context, entry, seq);
+                  },
+                ),
+              ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/widgets/contacts/ping_contact_sheet.dart

@@ -0,0 +1,638 @@
+import 'dart:async';
+import 'dart:io';
+import 'dart:math' as math;
+import 'dart:typed_data';
+
+import 'package:audioplayers/audioplayers.dart';
+import 'package:flutter/material.dart';
+import 'package:geolocator/geolocator.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:provider/provider.dart';
+
+import '../../models/contact.dart';
+import '../../providers/connection_provider.dart';
+import '../../services/location_tracking_service.dart';
+import '../../utils/link_quality.dart';
+import '../../utils/time_ago_extensions.dart';
+
+class PingContactSheet extends StatefulWidget {
+  final Contact contact;
+
+  const PingContactSheet({super.key, required this.contact});
+
+  @override
+  State<PingContactSheet> createState() => _PingContactSheetState();
+}
+
+class _PingEntry {
+  final RelayPingResult result;
+  final DateTime timestamp;
+  final String? distance;
+
+  const _PingEntry({
+    required this.result,
+    required this.timestamp,
+    this.distance,
+  });
+}
+
+class _PingContactSheetState extends State<PingContactSheet> {
+  static const Duration _autoPingInterval = Duration(seconds: 2);
+  static const Duration _maxAutoPingDelay = Duration(seconds: 5);
+  static const int _maxHistoryEntries = 24;
+  static const double _maxHistoryHeight = 320;
+  static const Duration _timeoutPenalty = Duration(seconds: 10);
+
+  bool _pinging = false;
+  bool _autoPingEnabled = false;
+  final List<_PingEntry> _history = [];
+  final _PingCuePlayer _cuePlayer = _PingCuePlayer();
+  Timer? _autoPingTimer;
+
+  @override
+  void initState() {
+    super.initState();
+    _doPing();
+  }
+
+  @override
+  void dispose() {
+    _autoPingTimer?.cancel();
+    _cuePlayer.dispose();
+    super.dispose();
+  }
+
+  Future<void> _doPing() async {
+    if (_pinging) {
+      return;
+    }
+    setState(() => _pinging = true);
+    final connectionProvider = context.read<ConnectionProvider>();
+    final distance = _distanceText();
+    final result = await connectionProvider.pingRelay(widget.contact);
+    if (!mounted) return;
+    setState(() {
+      _pinging = false;
+      _history.insert(
+        0,
+        _PingEntry(
+          result: result,
+          timestamp: DateTime.now(),
+          distance: distance,
+        ),
+      );
+      if (_history.length > _maxHistoryEntries) {
+        _history.removeRange(_maxHistoryEntries, _history.length);
+      }
+    });
+    await _maybePlayCue(result);
+    _scheduleNextAutoPing(result);
+  }
+
+  Future<void> _maybePlayCue(RelayPingResult result) async {
+    if (!_autoPingEnabled) {
+      return;
+    }
+
+    final previous = _history.length >= 2 ? _history[1].result : null;
+    await _cuePlayer.playCue(result, previous: previous);
+  }
+
+  void _setAutoPingEnabled(bool enabled) {
+    setState(() {
+      _autoPingEnabled = enabled;
+    });
+    _autoPingTimer?.cancel();
+    if (!enabled) {
+      return;
+    }
+    _scheduleNextAutoPing();
+  }
+
+  void _scheduleNextAutoPing([RelayPingResult? result]) {
+    _autoPingTimer?.cancel();
+    if (!_autoPingEnabled || !mounted) {
+      return;
+    }
+    final responseDelay = result == null
+        ? Duration.zero
+        : result.success
+        ? Duration(milliseconds: result.durationMs)
+        : _timeoutPenalty;
+    final nextDelay = _autoPingInterval + responseDelay;
+    final clampedDelay = nextDelay > _maxAutoPingDelay
+        ? _maxAutoPingDelay
+        : nextDelay;
+    _autoPingTimer = Timer(clampedDelay, () {
+      unawaited(_doPing());
+    });
+  }
+
+  String? _distanceText() {
+    final location = widget.contact.displayLocation;
+    if (location == null) return null;
+    final currentPosition = LocationTrackingService().currentPosition;
+    if (currentPosition == null) return null;
+    final meters = Geolocator.distanceBetween(
+      currentPosition.latitude,
+      currentPosition.longitude,
+      location.latitude,
+      location.longitude,
+    );
+    if (meters < 1000) return '${meters.round()} m';
+    if (meters < 10000) return '${(meters / 1000).toStringAsFixed(2)} km';
+    return '${(meters / 1000).toStringAsFixed(1)} km';
+  }
+
+  Widget _buildPill(
+    BuildContext context, {
+    required IconData icon,
+    required String label,
+    Color? iconColor,
+  }) {
+    final colorScheme = Theme.of(context).colorScheme;
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      decoration: BoxDecoration(
+        color: colorScheme.surfaceContainerHighest.withValues(alpha: 0.75),
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Icon(icon, size: 12, color: iconColor ?? colorScheme.onSurfaceVariant),
+          const SizedBox(width: 4),
+          Text(
+            label,
+            style: Theme.of(context).textTheme.labelSmall?.copyWith(
+              color: colorScheme.onSurfaceVariant,
+              fontWeight: FontWeight.w700,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildSnrPill(BuildContext context, String direction, double snrDb) {
+    final quality = linkQualityLabel(null, snrDb);
+    final color = linkQualityColor(quality);
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      decoration: BoxDecoration(
+        color: color.withValues(alpha: 0.15),
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Icon(
+            direction == 'there'
+                ? Icons.arrow_upward_rounded
+                : Icons.arrow_downward_rounded,
+            size: 12,
+            color: color,
+          ),
+          const SizedBox(width: 4),
+          Text(
+            '${snrDb.toStringAsFixed(1)} dB',
+            style: Theme.of(context).textTheme.labelSmall?.copyWith(
+              color: color,
+              fontWeight: FontWeight.w700,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildResultRow(BuildContext context, _PingEntry entry, int seq) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final r = entry.result;
+    final age = DateTime.now().difference(entry.timestamp);
+    final timeAgo = age.toLocalizedTimeAgoWithSeconds(context);
+
+    if (!r.success) {
+      return Padding(
+        padding: const EdgeInsets.symmetric(vertical: 8),
+        child: Row(
+          children: [
+            CircleAvatar(
+              radius: 12,
+              backgroundColor: colorScheme.error.withValues(alpha: 0.15),
+              child: Text(
+                '$seq',
+                style: TextStyle(
+                  color: colorScheme.error,
+                  fontSize: 10,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+            ),
+            const SizedBox(width: 10),
+            Text(
+              'Timeout',
+              style: theme.textTheme.bodySmall?.copyWith(
+                color: colorScheme.error,
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+            const Spacer(),
+            Text(
+              timeAgo,
+              style: theme.textTheme.labelSmall?.copyWith(
+                color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+              ),
+            ),
+          ],
+        ),
+      );
+    }
+
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 6),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              CircleAvatar(
+                radius: 12,
+                backgroundColor: colorScheme.surfaceContainerHighest,
+                child: Text(
+                  '$seq',
+                  style: TextStyle(
+                    color: colorScheme.onSurfaceVariant,
+                    fontSize: 10,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+              ),
+              const SizedBox(width: 10),
+              _buildPill(
+                context,
+                icon: Icons.timer_outlined,
+                label: '${r.durationMs} ms',
+              ),
+              const SizedBox(width: 6),
+              _buildSnrPill(context, 'there', r.snrThere),
+              const SizedBox(width: 6),
+              _buildSnrPill(context, 'back', r.snrBack),
+              const Spacer(),
+              Text(
+                timeAgo,
+                style: theme.textTheme.labelSmall?.copyWith(
+                  color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+                  fontSize: 10,
+                ),
+              ),
+            ],
+          ),
+          Padding(
+            padding: const EdgeInsets.only(left: 34, top: 4),
+            child: Row(
+              children: [
+                if (entry.distance != null) ...[
+                  Icon(
+                    Icons.straighten,
+                    size: 10,
+                    color: colorScheme.onSurfaceVariant.withValues(alpha: 0.5),
+                  ),
+                  const SizedBox(width: 3),
+                  Text(
+                    entry.distance!,
+                    style: theme.textTheme.labelSmall?.copyWith(
+                      color: colorScheme.onSurfaceVariant.withValues(alpha: 0.6),
+                      fontSize: 10,
+                    ),
+                  ),
+                  const SizedBox(width: 8),
+                ],
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+
+    return SafeArea(
+      child: Padding(
+        padding: const EdgeInsets.fromLTRB(16, 12, 16, 24),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              children: [
+                Expanded(
+                  child: Text(
+                    'Ping ${widget.contact.displayName}',
+                    style: theme.textTheme.titleLarge?.copyWith(
+                      fontWeight: FontWeight.w800,
+                    ),
+                  ),
+                ),
+                FilledButton.icon(
+                  onPressed: _pinging ? null : _doPing,
+                  icon: _pinging
+                      ? SizedBox(
+                          width: 16,
+                          height: 16,
+                          child: CircularProgressIndicator(
+                            strokeWidth: 2,
+                            color: colorScheme.onPrimary,
+                          ),
+                        )
+                      : const Icon(Icons.network_ping, size: 18),
+                  label: Text(_pinging ? 'Pinging...' : 'Ping again'),
+                ),
+              ],
+            ),
+            const SizedBox(height: 8),
+            Text(
+              widget.contact.publicKeyShort,
+              style: theme.textTheme.bodySmall?.copyWith(
+                color: colorScheme.onSurfaceVariant,
+                fontFamily: 'monospace',
+              ),
+            ),
+            const SizedBox(height: 12),
+            Container(
+              padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+              decoration: BoxDecoration(
+                color: colorScheme.surfaceContainerLow,
+                borderRadius: BorderRadius.circular(16),
+                border: Border.all(
+                  color: colorScheme.outlineVariant.withValues(alpha: 0.4),
+                ),
+              ),
+              child: Row(
+                children: [
+                  Icon(
+                    _autoPingEnabled
+                        ? Icons.radar_rounded
+                        : Icons.radar_outlined,
+                    color: _autoPingEnabled
+                        ? colorScheme.primary
+                        : colorScheme.onSurfaceVariant,
+                  ),
+                  const SizedBox(width: 10),
+                  Expanded(
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          'Auto ping',
+                          style: theme.textTheme.titleSmall?.copyWith(
+                            fontWeight: FontWeight.w700,
+                          ),
+                        ),
+                        Text(
+                          '2s sonar cues for there/back SNR',
+                          style: theme.textTheme.bodySmall?.copyWith(
+                            color: colorScheme.onSurfaceVariant,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  Switch.adaptive(
+                    value: _autoPingEnabled,
+                    onChanged: _setAutoPingEnabled,
+                  ),
+                ],
+              ),
+            ),
+            const SizedBox(height: 16),
+            if (_history.isEmpty && !_pinging)
+              Text(
+                'No ping results yet.',
+                style: theme.textTheme.bodyMedium?.copyWith(
+                  color: colorScheme.onSurfaceVariant,
+                ),
+              )
+            else
+              ConstrainedBox(
+                constraints: const BoxConstraints(
+                  maxHeight: _maxHistoryHeight,
+                ),
+                child: ListView.separated(
+                  shrinkWrap: true,
+                  itemCount: _history.length,
+                  separatorBuilder: (_, _) => Divider(
+                    height: 1,
+                    color: colorScheme.outlineVariant.withValues(alpha: 0.4),
+                  ),
+                  itemBuilder: (context, index) =>
+                      _buildResultRow(context, _history[index], index + 1),
+                ),
+              ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _PingCuePlayer {
+  static const double _fairSnrThresholdDb = 0;
+
+  AudioPlayer? _player;
+
+  Future<void> playCue(
+    RelayPingResult result, {
+    RelayPingResult? previous,
+  }) async {
+    _player ??= AudioPlayer();
+    final player = _player!;
+    final filePath = await _writeCueFile(
+      result,
+      previous: previous,
+    );
+    await player.stop();
+    await player.setVolume(1.0);
+    await player.play(DeviceFileSource(filePath));
+  }
+
+  Future<String> _writeCueFile(
+    RelayPingResult result, {
+    RelayPingResult? previous,
+  }) async {
+    final tempDir = await getTemporaryDirectory();
+    final file = File('${tempDir.path}/ping_sonar_alert.wav');
+    final samples = _buildCueSamples(result, previous: previous);
+    final wavBytes = _buildWav(samples, sampleRate: 16000);
+    await file.writeAsBytes(wavBytes, flush: true);
+    return file.path;
+  }
+
+  Int16List _buildCueSamples(
+    RelayPingResult result, {
+    RelayPingResult? previous,
+  }) {
+    const sampleRate = 16000;
+    final segments = <double>[];
+    if (!result.success) {
+      segments.addAll(
+        _timeoutAlert(sampleRate),
+      );
+    } else {
+      segments.addAll(
+        _tone(
+          sampleRate,
+          frequencyHz: _frequencyForSnr(result.snrThere),
+          durationMs: 90,
+          amplitude: 0.42,
+        ),
+      );
+      segments.addAll(_silence(sampleRate, durationMs: 35));
+      segments.addAll(
+        _tone(
+          sampleRate,
+          frequencyHz: _frequencyForSnr(result.snrBack),
+          durationMs: 90,
+          amplitude: 0.42,
+        ),
+      );
+      final belowFair =
+          result.snrThere < _fairSnrThresholdDb &&
+          result.snrBack < _fairSnrThresholdDb;
+      final worsening =
+          previous != null &&
+          result.snrThere < previous.snrThere &&
+          result.snrBack < previous.snrBack;
+      if (belowFair && worsening) {
+        segments.addAll(_silence(sampleRate, durationMs: 40));
+        segments.addAll(
+          _descendingAlert(sampleRate, baseFrequencyHz: 520),
+        );
+      }
+    }
+    final pcm = Int16List(segments.length);
+    for (var i = 0; i < segments.length; i++) {
+      pcm[i] = (segments[i] * 32767).round().clamp(-32768, 32767);
+    }
+    return pcm;
+  }
+
+  double _frequencyForSnr(double snrDb) {
+    final clamped = snrDb.clamp(-12.0, 12.0);
+    final normalized = (clamped + 12.0) / 24.0;
+    return 320 + (normalized * 900);
+  }
+
+  List<double> _descendingAlert(int sampleRate, {required double baseFrequencyHz}) {
+    return <double>[
+      ..._tone(
+        sampleRate,
+        frequencyHz: baseFrequencyHz,
+        durationMs: 80,
+        amplitude: 0.44,
+      ),
+      ..._silence(sampleRate, durationMs: 30),
+      ..._tone(
+        sampleRate,
+        frequencyHz: baseFrequencyHz * 0.82,
+        durationMs: 110,
+        amplitude: 0.40,
+      ),
+    ];
+  }
+
+  List<double> _timeoutAlert(int sampleRate) {
+    return <double>[
+      ..._tone(
+        sampleRate,
+        frequencyHz: 240,
+        durationMs: 180,
+        amplitude: 0.46,
+      ),
+      ..._silence(sampleRate, durationMs: 60),
+      ..._tone(
+        sampleRate,
+        frequencyHz: 180,
+        durationMs: 220,
+        amplitude: 0.52,
+      ),
+    ];
+  }
+
+  List<double> _tone(
+    int sampleRate, {
+    required double frequencyHz,
+    required int durationMs,
+    required double amplitude,
+  }) {
+    final sampleCount = (sampleRate * durationMs / 1000).round();
+    return List<double>.generate(sampleCount, (index) {
+      final t = index / sampleRate;
+      final envelope = math.sin(math.pi * index / sampleCount);
+      return math.sin(2 * math.pi * frequencyHz * t) * amplitude * envelope;
+    });
+  }
+
+  List<double> _silence(int sampleRate, {required int durationMs}) {
+    final sampleCount = (sampleRate * durationMs / 1000).round();
+    return List<double>.filled(sampleCount, 0);
+  }
+
+  Uint8List _buildWav(Int16List samples, {required int sampleRate}) {
+    const numChannels = 1;
+    const bitsPerSample = 16;
+    const audioFormat = 1;
+    final dataSize = samples.length * 2;
+    final byteRate = sampleRate * numChannels * bitsPerSample ~/ 8;
+    final blockAlign = numChannels * bitsPerSample ~/ 8;
+    final totalSize = 36 + dataSize;
+    final buffer = ByteData(44 + dataSize);
+    var offset = 0;
+
+    void writeString(String value) {
+      for (final codeUnit in value.codeUnits) {
+        buffer.setUint8(offset++, codeUnit);
+      }
+    }
+
+    void writeUint32(int value) {
+      buffer.setUint32(offset, value, Endian.little);
+      offset += 4;
+    }
+
+    void writeUint16(int value) {
+      buffer.setUint16(offset, value, Endian.little);
+      offset += 2;
+    }
+
+    writeString('RIFF');
+    writeUint32(totalSize);
+    writeString('WAVE');
+    writeString('fmt ');
+    writeUint32(16);
+    writeUint16(audioFormat);
+    writeUint16(numChannels);
+    writeUint32(sampleRate);
+    writeUint32(byteRate);
+    writeUint16(blockAlign);
+    writeUint16(bitsPerSample);
+    writeString('data');
+    writeUint32(dataSize);
+
+    for (final sample in samples) {
+      buffer.setInt16(offset, sample, Endian.little);
+      offset += 2;
+    }
+
+    return buffer.buffer.asUint8List();
+  }
+
+  void dispose() {
+    _player?.dispose();
+  }
+}

lib/widgets/messages/message_bubble_header.dart

@@ -88,24 +88,26 @@ Widget buildBubbleMetaFooter(
         ).textTheme.labelSmall?.copyWith(color: metaColor),
       ),
     ]);
-  } else if (!isSarMarker && _effectivePathLen(message, routeMetadata) < 255) {
-    final effectivePathLen = _effectivePathLen(message, routeMetadata);
-    items.addAll([
-      Icon(Icons.alt_route, size: 11, color: metaColor),
-      const SizedBox(width: 3),
-      Text(
-        effectivePathLen == 0 ? 'direct' : '${effectivePathLen}hop',
-        style: Theme.of(
-          context,
-        ).textTheme.labelSmall?.copyWith(color: metaColor),
-      ),
-      Text(
-        ' • ',
-        style: Theme.of(
-          context,
-        ).textTheme.labelSmall?.copyWith(color: metaColor),
-      ),
-    ]);
+  } else if (!isSarMarker) {
+    final routeLabel = _effectiveRouteFooterLabel(message, routeMetadata);
+    if (routeLabel != null) {
+      items.addAll([
+        Icon(Icons.alt_route, size: 11, color: metaColor),
+        const SizedBox(width: 3),
+        Text(
+          routeLabel,
+          style: Theme.of(
+            context,
+          ).textTheme.labelSmall?.copyWith(color: metaColor),
+        ),
+        Text(
+          ' • ',
+          style: Theme.of(
+            context,
+          ).textTheme.labelSmall?.copyWith(color: metaColor),
+        ),
+      ]);
+    }
   }
 
   items.add(
@@ -127,8 +129,31 @@ Widget buildBubbleMetaFooter(
   );
 }
 
-int _effectivePathLen(Message message, MessageRouteMetadata? routeMetadata) =>
-    routeMetadata?.hopCount ?? message.pathLen;
+String? _effectiveRouteFooterLabel(
+  Message message,
+  MessageRouteMetadata? routeMetadata,
+) {
+  if (routeMetadata?.mode.name == 'flood') {
+    return 'flood';
+  }
+
+  final effectivePathLen = _effectivePathLen(message, routeMetadata);
+  if (effectivePathLen >= 255) {
+    return null;
+  }
+
+  return effectivePathLen == 0 ? 'direct' : '${effectivePathLen}hop';
+}
+
+int _effectivePathLen(Message message, MessageRouteMetadata? routeMetadata) {
+  if (routeMetadata?.hopCount != null) {
+    return routeMetadata!.hopCount!;
+  }
+  if (routeMetadata?.mode.name == 'flood') {
+    return 255;
+  }
+  return message.pathLen;
+}
 
 Widget buildChannelHeaderPill(
   BuildContext context, {

lib/widgets/messages/messages_composer.dart

@@ -19,6 +19,7 @@ class MessagesComposer extends StatelessWidget {
   final double bottomPadding;
   final String destinationLabel;
   final Widget destinationAvatar;
+  final bool destinationLocked;
   final List<Contact> mentionSuggestions;
   final String mentionQuery;
   final ValueChanged<Contact> onMentionSelected;
@@ -27,6 +28,7 @@ class MessagesComposer extends StatelessWidget {
   final Future<void> Function() onStartVoiceRecording;
   final Future<void> Function() onStopAndSendVoice;
   final Future<void> Function() onSendMessage;
+  final VoidCallback? onLongPressSend;
   final String? regionScopeName;
   final VoidCallback? onRegionScopeTap;
 
@@ -43,6 +45,7 @@ class MessagesComposer extends StatelessWidget {
     required this.bottomPadding,
     required this.destinationLabel,
     required this.destinationAvatar,
+    required this.destinationLocked,
     required this.mentionSuggestions,
     required this.mentionQuery,
     required this.onMentionSelected,
@@ -51,6 +54,7 @@ class MessagesComposer extends StatelessWidget {
     required this.onStartVoiceRecording,
     required this.onStopAndSendVoice,
     required this.onSendMessage,
+    this.onLongPressSend,
     this.regionScopeName,
     this.onRegionScopeTap,
   });
@@ -116,10 +120,13 @@ class MessagesComposer extends StatelessWidget {
                           ],
                           const SizedBox(width: 8),
                           Expanded(
-                            child: _DestinationSelector(
+                            child: _DestinationPill(
                               destinationLabel: destinationLabel,
                               destinationAvatar: destinationAvatar,
-                              onTap: onShowRecipientSelector,
+                              isLocked: destinationLocked,
+                              onTap: destinationLocked
+                                  ? null
+                                  : onShowRecipientSelector,
                             ),
                           ),
                         ],
@@ -163,6 +170,7 @@ class MessagesComposer extends StatelessWidget {
                                 messageByteCount: messageByteCount,
                                 maxMessageBytes: maxMessageBytes,
                                 onSendMessage: onSendMessage,
+                                onLongPressSend: onLongPressSend,
                                 onStartVoiceRecording: onStartVoiceRecording,
                                 onStopAndSendVoice: onStopAndSendVoice,
                               ),
@@ -294,59 +302,73 @@ class _ComposerActionButton extends StatelessWidget {
   }
 }
 
-class _DestinationSelector extends StatelessWidget {
+class _DestinationPill extends StatelessWidget {
   final String destinationLabel;
   final Widget destinationAvatar;
-  final VoidCallback onTap;
+  final bool isLocked;
+  final VoidCallback? onTap;
 
-  const _DestinationSelector({
+  const _DestinationPill({
     required this.destinationLabel,
     required this.destinationAvatar,
-    required this.onTap,
+    required this.isLocked,
+    this.onTap,
   });
 
   @override
   Widget build(BuildContext context) {
+    final content = Ink(
+      key: ValueKey(
+        isLocked
+            ? 'messages_composer_destination_locked'
+            : 'messages_composer_destination_selector',
+      ),
+      height: 40,
+      decoration: BoxDecoration(
+        color: Theme.of(context).colorScheme.surface,
+        borderRadius: BorderRadius.circular(20),
+        border: Border.all(
+          color: Theme.of(context).dividerColor.withValues(alpha: 0.35),
+        ),
+      ),
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 12),
+        child: Row(
+          children: [
+            destinationAvatar,
+            const SizedBox(width: 8),
+            Expanded(
+              child: Text(
+                destinationLabel,
+                overflow: TextOverflow.ellipsis,
+                style: TextStyle(
+                  fontSize: 14,
+                  fontWeight: FontWeight.w600,
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+            ),
+            if (!isLocked)
+              Icon(
+                Icons.expand_more_rounded,
+                size: 18,
+                color: Theme.of(context).colorScheme.onSurfaceVariant,
+              ),
+          ],
+        ),
+      ),
+    );
+
+    if (onTap == null) {
+      return Material(color: Colors.transparent, child: content);
+    }
+
     return Material(
       color: Colors.transparent,
       child: InkWell(
         borderRadius: BorderRadius.circular(20),
         onTap: onTap,
-        child: Ink(
-          height: 40,
-          decoration: BoxDecoration(
-            color: Theme.of(context).colorScheme.surface,
-            borderRadius: BorderRadius.circular(20),
-            border: Border.all(
-              color: Theme.of(context).dividerColor.withValues(alpha: 0.35),
-            ),
-          ),
-          child: Padding(
-            padding: const EdgeInsets.symmetric(horizontal: 12),
-            child: Row(
-              children: [
-                destinationAvatar,
-                const SizedBox(width: 8),
-                Expanded(
-                  child: Text(
-                    destinationLabel,
-                    overflow: TextOverflow.ellipsis,
-                    style: TextStyle(
-                      fontSize: 14,
-                      fontWeight: FontWeight.w600,
-                      color: Theme.of(context).colorScheme.onSurface,
-                    ),
-                  ),
-                ),
-                Icon(
-                  Icons.expand_more_rounded,
-                  size: 18,
-                  color: Theme.of(context).colorScheme.onSurfaceVariant,
-                ),
-              ],
-            ),
-          ),
-        ),
+        child: content,
       ),
     );
   }
@@ -433,6 +455,7 @@ class _SendButton extends StatelessWidget {
   final int messageByteCount;
   final int maxMessageBytes;
   final Future<void> Function() onSendMessage;
+  final VoidCallback? onLongPressSend;
   final Future<void> Function() onStartVoiceRecording;
   final Future<void> Function() onStopAndSendVoice;
 
@@ -445,6 +468,7 @@ class _SendButton extends StatelessWidget {
     required this.messageByteCount,
     required this.maxMessageBytes,
     required this.onSendMessage,
+    this.onLongPressSend,
     required this.onStartVoiceRecording,
     required this.onStopAndSendVoice,
   });
@@ -456,28 +480,32 @@ class _SendButton extends StatelessWidget {
       enabled: canSendText || (voiceSupported && !isSendingVoice),
       label: semanticsLabel,
       onTap: canSendText ? onSendMessage : null,
-      onLongPress: (voiceSupported && !isSendingVoice)
-          ? () {
-              if (isRecording) {
-                onStopAndSendVoice();
-                return;
-              }
-              onStartVoiceRecording();
-            }
-          : null,
+      onLongPress: canSendText && onLongPressSend != null
+          ? onLongPressSend
+          : (voiceSupported && !isSendingVoice)
+              ? () {
+                  if (isRecording) {
+                    onStopAndSendVoice();
+                    return;
+                  }
+                  onStartVoiceRecording();
+                }
+              : null,
       child: Tooltip(
         message: semanticsLabel,
         excludeFromSemantics: true,
         child: GestureDetector(
           excludeFromSemantics: true,
           onTap: canSendText ? onSendMessage : null,
-          onLongPressStart: (voiceSupported && !isSendingVoice)
-              ? (_) => onStartVoiceRecording()
-              : null,
-          onLongPressEnd: (voiceSupported && isRecording)
+          onLongPressStart: canSendText && onLongPressSend != null
+              ? (_) => onLongPressSend!()
+              : (voiceSupported && !isSendingVoice)
+                  ? (_) => onStartVoiceRecording()
+                  : null,
+          onLongPressEnd: (!canSendText && voiceSupported && isRecording)
               ? (_) => onStopAndSendVoice()
               : null,
-          onLongPressCancel: (voiceSupported && isRecording)
+          onLongPressCancel: (!canSendText && voiceSupported && isRecording)
               ? onStopAndSendVoice
               : null,
           child: Column(

lib/widgets/sensors/sensor_telemetry_card.dart

@@ -29,6 +29,31 @@ class SensorMetricOption {
   });
 }
 
+const Set<String> _imperialMeasurementCountries = <String>{
+  'US',
+  'LR',
+  'MM',
+};
+
+bool _usesImperialSpeedUnits() {
+  final countryCode =
+      WidgetsBinding.instance.platformDispatcher.locale.countryCode;
+  if (countryCode == null || countryCode.isEmpty) {
+    return false;
+  }
+  return _imperialMeasurementCountries.contains(countryCode.toUpperCase());
+}
+
+String _formatPreviewSpeed(num metersPerSecond) {
+  if (_usesImperialSpeedUnits()) {
+    final milesPerHour = metersPerSecond * 2.2369362920544;
+    return '${_formatPreviewNumber(milesPerHour, maxFractionDigits: 2)} mph';
+  }
+
+  final kilometersPerHour = metersPerSecond * 3.6;
+  return '${_formatPreviewNumber(kilometersPerHour, maxFractionDigits: 2)} km/h';
+}
+
 List<SensorMetricOption> sensorMetricOptionsFor(
   Contact? contact, {
   Map<String, String> labelOverrides = const <String, String>{},
@@ -795,17 +820,17 @@ String? _sensorMetricPreviewValue(String rawKey, dynamic value) {
     case 'speed':
       final metersPerSecond = _previewAsDouble(value);
       if (metersPerSecond == null) return null;
-      return '${_formatPreviewNumber(metersPerSecond, maxFractionDigits: 2)} m/s';
+      return _formatPreviewSpeed(metersPerSecond);
 
     case 'signed_speed':
       final metersPerSecond = _previewAsDouble(value);
       if (metersPerSecond == null) return null;
-      return '${_formatPreviewNumber(metersPerSecond, maxFractionDigits: 2)} m/s';
+      return _formatPreviewSpeed(metersPerSecond);
 
     case 'gust':
       final metersPerSecond = _previewAsDouble(value);
       if (metersPerSecond == null) return null;
-      return '${_formatPreviewNumber(metersPerSecond, maxFractionDigits: 2)} m/s';
+      return _formatPreviewSpeed(metersPerSecond);
 
     case 'dew':
       final degreesCelsius = _previewAsDouble(value);
@@ -1039,6 +1064,7 @@ class SensorTelemetryCard extends StatelessWidget {
   final Map<String, int> fieldSpans;
   final Future<void> Function()? onRemove;
   final Future<void> Function()? onRefresh;
+  final Future<void> Function()? onPing;
   final VoidCallback? onCustomize;
   final Future<void> Function(Contact contact)? onShowMetHistory;
   final Future<void> Function()? onMoveUp;
@@ -1046,6 +1072,7 @@ class SensorTelemetryCard extends StatelessWidget {
   final EdgeInsetsGeometry margin;
   final String emptyMetricsMessage;
   final Map<String, String> labelOverrides;
+  final bool showActionSheetOnTap;
 
   const SensorTelemetryCard({
     super.key,
@@ -1056,6 +1083,7 @@ class SensorTelemetryCard extends StatelessWidget {
     required this.fieldSpans,
     this.onRemove,
     this.onRefresh,
+    this.onPing,
     this.onCustomize,
     this.onShowMetHistory,
     this.onMoveUp,
@@ -1064,10 +1092,22 @@ class SensorTelemetryCard extends StatelessWidget {
     this.emptyMetricsMessage =
         'All fields are hidden. Use Visible fields to choose what to show.',
     this.labelOverrides = const <String, String>{},
+    this.showActionSheetOnTap = false,
   });
 
+  String _formatSpeed(num metersPerSecond) {
+    if (_usesImperialSpeedUnits()) {
+      final milesPerHour = metersPerSecond * 2.2369362920544;
+      return '${_formatNumber(milesPerHour, maxFractionDigits: 2)} mph';
+    }
+
+    final kilometersPerHour = metersPerSecond * 3.6;
+    return '${_formatNumber(kilometersPerHour, maxFractionDigits: 2)} km/h';
+  }
+
   bool get _showsMenu =>
       onRefresh != null ||
+      onPing != null ||
       onCustomize != null ||
       onRemove != null ||
       onMoveUp != null ||
@@ -1077,6 +1117,116 @@ class SensorTelemetryCard extends StatelessWidget {
           onShowMetHistory != null &&
           supportsBTHomeMetHistory(contact));
 
+  Future<void> _handleAction(BuildContext context, String value) async {
+    if (value == 'refresh' && onRefresh != null) {
+      await onRefresh!();
+      return;
+    }
+    if (value == 'ping' && onPing != null) {
+      await onPing!();
+      return;
+    }
+    if (value == 'move_up' && onMoveUp != null) {
+      await onMoveUp!();
+      return;
+    }
+    if (value == 'move_down' && onMoveDown != null) {
+      await onMoveDown!();
+      return;
+    }
+    if (value == 'copy_raw') {
+      final rawTelemetry = _rawTelemetryHex(contact?.telemetry);
+      if (rawTelemetry != null && context.mounted) {
+        await Clipboard.setData(ClipboardData(text: rawTelemetry));
+        if (context.mounted) {
+          ScaffoldMessenger.of(context).showSnackBar(
+            const SnackBar(content: Text('Raw response copied')),
+          );
+        }
+      }
+      return;
+    }
+    if (value == 'remove' && onRemove != null) {
+      await onRemove!();
+      return;
+    }
+    if (value == 'customize' && onCustomize != null) {
+      onCustomize!();
+      return;
+    }
+    if (value == 'met_history' &&
+        contact != null &&
+        onShowMetHistory != null) {
+      await onShowMetHistory!(contact!);
+    }
+  }
+
+  List<_SensorSheetAction> _buildSheetActions(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    final actions = <_SensorSheetAction>[
+      if (onRefresh != null)
+        _SensorSheetAction(
+          icon: Icons.refresh,
+          label: l10n.refresh,
+          onTap: () => _handleAction(context, 'refresh'),
+        ),
+      if (onPing != null)
+        _SensorSheetAction(
+          icon: Icons.network_ping,
+          label: 'Ping',
+          onTap: () => _handleAction(context, 'ping'),
+        ),
+      if (_rawTelemetryHex(contact?.telemetry) != null)
+        _SensorSheetAction(
+          icon: Icons.copy_all_outlined,
+          label: 'Copy raw response',
+          onTap: () => _handleAction(context, 'copy_raw'),
+        ),
+      if (onCustomize != null)
+        _SensorSheetAction(
+          icon: Icons.tune,
+          label: l10n.customizeFields,
+          onTap: () => _handleAction(context, 'customize'),
+        ),
+      if (contact != null &&
+          onShowMetHistory != null &&
+          supportsBTHomeMetHistory(contact))
+        _SensorSheetAction(
+          icon: Icons.show_chart,
+          label: 'MET history',
+          onTap: () => _handleAction(context, 'met_history'),
+        ),
+      if (onRemove != null)
+        _SensorSheetAction(
+          icon: Icons.delete_outline_rounded,
+          label: l10n.remove,
+          destructive: true,
+          onTap: () => _handleAction(context, 'remove'),
+        ),
+    ];
+    return actions;
+  }
+
+  Future<void> _showActionSheet(BuildContext context) async {
+    if (!_showsMenu) {
+      return;
+    }
+    final actions = _buildSheetActions(context);
+    if (actions.isEmpty) {
+      return;
+    }
+    await showModalBottomSheet<void>(
+      context: context,
+      isScrollControlled: true,
+      backgroundColor: Colors.transparent,
+      builder: (sheetContext) => _SensorActionSheet(
+        contact: contact,
+        actions: actions,
+        onClose: () => Navigator.pop(sheetContext),
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
@@ -1089,7 +1239,7 @@ class SensorTelemetryCard extends StatelessWidget {
             _buildMetricCards(l10n, telemetry, contact!),
           );
 
-    return Container(
+    final card = Container(
       margin: margin,
       decoration: BoxDecoration(
         borderRadius: BorderRadius.circular(28),
@@ -1177,102 +1327,11 @@ class SensorTelemetryCard extends StatelessWidget {
                   ),
                 ),
                 if (_showsMenu)
-                  PopupMenuButton<String>(
-                    onSelected: (value) async {
-                      if (value == 'refresh' && onRefresh != null) {
-                        await onRefresh!();
-                      } else if (value == 'move_up' && onMoveUp != null) {
-                        await onMoveUp!();
-                      } else if (value == 'move_down' && onMoveDown != null) {
-                        await onMoveDown!();
-                      } else if (value == 'copy_raw') {
-                        final rawTelemetry = _rawTelemetryHex(
-                          contact?.telemetry,
-                        );
-                        if (rawTelemetry != null && context.mounted) {
-                          await Clipboard.setData(
-                            ClipboardData(text: rawTelemetry),
-                          );
-                          if (context.mounted) {
-                            ScaffoldMessenger.of(context).showSnackBar(
-                              const SnackBar(
-                                content: Text('Raw response copied'),
-                              ),
-                            );
-                          }
-                        }
-                      } else if (value == 'remove' && onRemove != null) {
-                        await onRemove!();
-                      } else if (value == 'customize' && onCustomize != null) {
-                        onCustomize!();
-                      } else if (value == 'met_history' &&
-                          contact != null &&
-                          onShowMetHistory != null) {
-                        await onShowMetHistory!(contact!);
-                      }
-                    },
-                    itemBuilder: (context) {
-                      final items = <PopupMenuEntry<String>>[];
-                      if (onRefresh != null) {
-                        items.add(
-                          PopupMenuItem<String>(
-                            value: 'refresh',
-                            child: Text(l10n.refresh),
-                          ),
-                        );
-                      }
-                      if (onMoveUp != null) {
-                        items.add(
-                          const PopupMenuItem<String>(
-                            value: 'move_up',
-                            child: Text('Move up'),
-                          ),
-                        );
-                      }
-                      if (onMoveDown != null) {
-                        items.add(
-                          const PopupMenuItem<String>(
-                            value: 'move_down',
-                            child: Text('Move down'),
-                          ),
-                        );
-                      }
-                      if (_rawTelemetryHex(contact?.telemetry) != null) {
-                        items.add(
-                          const PopupMenuItem<String>(
-                            value: 'copy_raw',
-                            child: Text('Copy raw response'),
-                          ),
-                        );
-                      }
-                      if (onCustomize != null) {
-                        items.add(
-                          PopupMenuItem<String>(
-                            value: 'customize',
-                            child: Text(l10n.customizeFields),
-                          ),
-                        );
-                      }
-                      if (contact != null &&
-                          onShowMetHistory != null &&
-                          supportsBTHomeMetHistory(contact)) {
-                        items.add(
-                          const PopupMenuItem<String>(
-                            value: 'met_history',
-                            child: Text('MET history'),
-                          ),
-                        );
-                      }
-                      if (onRemove != null) {
-                        items.add(
-                          PopupMenuItem<String>(
-                            value: 'remove',
-                            child: Text(l10n.remove),
-                          ),
-                        );
-                      }
-                      return items;
-                    },
+                  Icon(
+                    showActionSheetOnTap
+                        ? Icons.chevron_right_rounded
+                        : Icons.more_horiz,
+                    color: colorScheme.onSurfaceVariant,
                   ),
               ],
             ),
@@ -1320,6 +1379,16 @@ class SensorTelemetryCard extends StatelessWidget {
         ),
       ),
     );
+
+    if (!_showsMenu || !showActionSheetOnTap) {
+      return card;
+    }
+
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: () => _showActionSheet(context),
+      child: card,
+    );
   }
 
   List<SensorMetricCardData> _buildMetricCards(
@@ -1759,7 +1828,7 @@ class SensorTelemetryCard extends StatelessWidget {
           fieldKey: _extraFieldKey(rawKey),
           icon: Icons.air,
           label: label,
-          value: '${_formatNumber(metersPerSecond, maxFractionDigits: 2)} m/s',
+          value: _formatSpeed(metersPerSecond),
           accent: const Color(0xFF2B78A0),
           channel: metricKey.channel,
         );
@@ -1771,7 +1840,7 @@ class SensorTelemetryCard extends StatelessWidget {
           fieldKey: _extraFieldKey(rawKey),
           icon: Icons.air,
           label: label,
-          value: '${_formatNumber(metersPerSecond, maxFractionDigits: 2)} m/s',
+          value: _formatSpeed(metersPerSecond),
           accent: const Color(0xFF2B78A0),
           channel: metricKey.channel,
         );
@@ -1783,7 +1852,7 @@ class SensorTelemetryCard extends StatelessWidget {
           fieldKey: _extraFieldKey(rawKey),
           icon: Icons.air,
           label: label,
-          value: '${_formatNumber(metersPerSecond, maxFractionDigits: 2)} m/s',
+          value: _formatSpeed(metersPerSecond),
           accent: const Color(0xFF1E88A8),
           channel: metricKey.channel,
         );
@@ -2252,7 +2321,7 @@ class _InlineAlertBadge extends StatelessWidget {
   }
 }
 
-class SensorMetricTile extends StatelessWidget {
+class SensorMetricTile extends StatefulWidget {
   final SensorMetricCardData data;
   final double width;
   final String keyPrefix;
@@ -2268,8 +2337,43 @@ class SensorMetricTile extends StatelessWidget {
     this.onLongPress,
   });
 
+  @override
+  State<SensorMetricTile> createState() => _SensorMetricTileState();
+}
+
+class _SensorMetricTileState extends State<SensorMetricTile> {
+  final flutter_map.MapController _previewMapController =
+      flutter_map.MapController();
+
+  @override
+  void didUpdateWidget(covariant SensorMetricTile oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    final previousLocation = oldWidget.data.mapLocation;
+    final nextLocation = widget.data.mapLocation;
+    if (!_sameMapLocation(previousLocation, nextLocation) &&
+        nextLocation != null &&
+        widget.allowMapPreview) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (!mounted) {
+          return;
+        }
+        _previewMapController.move(
+          nextLocation,
+          _previewMapController.camera.zoom,
+        );
+      });
+    }
+  }
+
+  bool _sameMapLocation(LatLng? a, LatLng? b) {
+    if (a == null || b == null) {
+      return a == b;
+    }
+    return a.latitude == b.latitude && a.longitude == b.longitude;
+  }
+
   Future<void> _showExpandedMap(BuildContext context) async {
-    final location = data.mapLocation;
+    final location = widget.data.mapLocation;
     if (location == null) return;
 
     await Navigator.of(context).push(
@@ -2280,9 +2384,9 @@ class SensorMetricTile extends StatelessWidget {
               title: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
-                  Text(data.label),
+                  Text(widget.data.label),
                   Text(
-                    data.value,
+                    widget.data.value,
                     style: Theme.of(pageContext).textTheme.bodySmall,
                   ),
                 ],
@@ -2291,11 +2395,11 @@ class SensorMetricTile extends StatelessWidget {
             body: Column(
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
-                if (data.secondaryValue != null)
+                if (widget.data.secondaryValue != null)
                   Padding(
                     padding: const EdgeInsets.fromLTRB(16, 0, 16, 12),
                     child: Text(
-                      data.secondaryValue!,
+                      widget.data.secondaryValue!,
                       style: Theme.of(pageContext).textTheme.bodyMedium,
                     ),
                   ),
@@ -2320,7 +2424,7 @@ class SensorMetricTile extends StatelessWidget {
                             height: 40,
                             child: Icon(
                               Icons.location_on,
-                              color: data.accent,
+                              color: widget.data.accent,
                               size: 34,
                             ),
                           ),
@@ -2340,14 +2444,15 @@ class SensorMetricTile extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final data = widget.data;
     return Material(
       color: Colors.transparent,
       child: InkWell(
-        key: ValueKey('${keyPrefix}_${data.fieldKey}'),
+        key: ValueKey('${widget.keyPrefix}_${data.fieldKey}'),
         borderRadius: BorderRadius.circular(22),
-        onLongPress: onLongPress,
+        onLongPress: widget.onLongPress,
         child: Container(
-          width: width,
+          width: widget.width,
           padding: const EdgeInsets.all(8),
           decoration: BoxDecoration(
             color: data.accent.withValues(alpha: 0.08),
@@ -2368,7 +2473,10 @@ class SensorMetricTile extends StatelessWidget {
                         ),
                         const SizedBox(width: 10),
                         Expanded(
-                          child: _MetricText(data: data, keyPrefix: keyPrefix),
+                          child: _MetricText(
+                            data: data,
+                            keyPrefix: widget.keyPrefix,
+                          ),
                         ),
                       ],
                     ),
@@ -2387,7 +2495,7 @@ class SensorMetricTile extends StatelessWidget {
                       ),
                   ],
                 )
-              : data.mapLocation == null || !allowMapPreview
+              : data.mapLocation == null || !widget.allowMapPreview
               ? Stack(
                   children: [
                     Row(
@@ -2396,7 +2504,10 @@ class SensorMetricTile extends StatelessWidget {
                         _MetricIcon(accent: data.accent, icon: data.icon),
                         const SizedBox(width: 10),
                         Expanded(
-                          child: _MetricText(data: data, keyPrefix: keyPrefix),
+                          child: _MetricText(
+                            data: data,
+                            keyPrefix: widget.keyPrefix,
+                          ),
                         ),
                       ],
                     ),
@@ -2424,7 +2535,10 @@ class SensorMetricTile extends StatelessWidget {
                         _MetricIcon(accent: data.accent, icon: data.icon),
                         const SizedBox(width: 10),
                         Expanded(
-                          child: _MetricText(data: data, keyPrefix: keyPrefix),
+                          child: _MetricText(
+                            data: data,
+                            keyPrefix: widget.keyPrefix,
+                          ),
                         ),
                       ],
                     ),
@@ -2439,12 +2553,13 @@ class SensorMetricTile extends StatelessWidget {
                           child: SizedBox(
                             height: 104,
                             width: double.infinity,
-                            child: Stack(
-                              children: [
-                                flutter_map.FlutterMap(
-                                  options: flutter_map.MapOptions(
-                                    initialCenter: data.mapLocation!,
-                                    initialZoom: 14,
+                              child: Stack(
+                                children: [
+                                  flutter_map.FlutterMap(
+                                    mapController: _previewMapController,
+                                    options: flutter_map.MapOptions(
+                                      initialCenter: data.mapLocation!,
+                                      initialZoom: 14,
                                     interactionOptions:
                                         const flutter_map.InteractionOptions(
                                           flags:
@@ -2745,6 +2860,213 @@ class SensorMetricCardData {
   });
 }
 
+class _SensorSheetAction {
+  final IconData icon;
+  final String label;
+  final Future<void> Function() onTap;
+  final bool destructive;
+
+  const _SensorSheetAction({
+    required this.icon,
+    required this.label,
+    required this.onTap,
+    this.destructive = false,
+  });
+}
+
+class _SensorActionSheet extends StatelessWidget {
+  final Contact? contact;
+  final List<_SensorSheetAction> actions;
+  final VoidCallback onClose;
+
+  const _SensorActionSheet({
+    required this.contact,
+    required this.actions,
+    required this.onClose,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final bottomInset = MediaQuery.of(context).viewPadding.bottom;
+    final title = contact?.displayName ?? 'Sensor';
+    final subtitle = contact == null ? 'Unavailable node' : contact!.publicKeyShort;
+
+    return Container(
+      constraints: BoxConstraints(
+        maxHeight: MediaQuery.of(context).size.height * 0.82,
+      ),
+      clipBehavior: Clip.antiAlias,
+      decoration: BoxDecoration(
+        color: colorScheme.surface,
+        borderRadius: const BorderRadius.vertical(top: Radius.circular(32)),
+        boxShadow: [
+          BoxShadow(
+            color: colorScheme.shadow.withValues(alpha: 0.12),
+            blurRadius: 24,
+            offset: const Offset(0, -4),
+          ),
+        ],
+      ),
+      child: Material(
+        color: colorScheme.surface,
+        child: SingleChildScrollView(
+          padding: EdgeInsets.fromLTRB(16, 12, 16, 16 + bottomInset),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Center(
+                child: Container(
+                  width: 44,
+                  height: 4,
+                  decoration: BoxDecoration(
+                    color: colorScheme.outlineVariant,
+                    borderRadius: BorderRadius.circular(999),
+                  ),
+                ),
+              ),
+              const SizedBox(height: 12),
+              Row(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Container(
+                    width: 56,
+                    height: 56,
+                    decoration: BoxDecoration(
+                      borderRadius: BorderRadius.circular(18),
+                      gradient: LinearGradient(
+                        colors: [
+                          colorScheme.primaryContainer,
+                          colorScheme.secondaryContainer,
+                        ],
+                        begin: Alignment.topLeft,
+                        end: Alignment.bottomRight,
+                      ),
+                    ),
+                    child: Icon(
+                      Icons.sensors_rounded,
+                      color: colorScheme.onPrimaryContainer,
+                    ),
+                  ),
+                  const SizedBox(width: 14),
+                  Expanded(
+                    child: Padding(
+                      padding: const EdgeInsets.only(top: 2),
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text(
+                            title,
+                            style: theme.textTheme.titleLarge?.copyWith(
+                              fontWeight: FontWeight.w900,
+                              letterSpacing: -0.45,
+                            ),
+                          ),
+                          const SizedBox(height: 4),
+                          Text(
+                            subtitle,
+                            style: theme.textTheme.bodyMedium?.copyWith(
+                              color: colorScheme.onSurfaceVariant,
+                              fontFamily: contact == null ? null : 'monospace',
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                  IconButton(
+                    onPressed: onClose,
+                    icon: const Icon(Icons.close),
+                    tooltip: MaterialLocalizations.of(context).closeButtonTooltip,
+                  ),
+                ],
+              ),
+              const SizedBox(height: 18),
+              ...actions.map(
+                (action) => _SensorActionTile(
+                  action: action,
+                  onClose: onClose,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _SensorActionTile extends StatelessWidget {
+  final _SensorSheetAction action;
+  final VoidCallback onClose;
+
+  const _SensorActionTile({
+    required this.action,
+    required this.onClose,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final foreground = action.destructive
+        ? colorScheme.error
+        : colorScheme.onSurface;
+    final iconBackground = action.destructive
+        ? colorScheme.error.withValues(alpha: 0.12)
+        : colorScheme.surfaceContainerHigh;
+
+    return Padding(
+      padding: const EdgeInsets.only(bottom: 10),
+      child: InkWell(
+        borderRadius: BorderRadius.circular(22),
+        onTap: () async {
+          onClose();
+          await action.onTap();
+        },
+        child: Ink(
+          padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 14),
+          decoration: BoxDecoration(
+            color: colorScheme.surfaceContainerLow,
+            borderRadius: BorderRadius.circular(22),
+            border: Border.all(
+              color: colorScheme.outlineVariant.withValues(alpha: 0.45),
+            ),
+          ),
+          child: Row(
+            children: [
+              Container(
+                width: 40,
+                height: 40,
+                decoration: BoxDecoration(
+                  color: iconBackground,
+                  borderRadius: BorderRadius.circular(14),
+                ),
+                child: Icon(action.icon, color: foreground),
+              ),
+              const SizedBox(width: 12),
+              Expanded(
+                child: Text(
+                  action.label,
+                  style: theme.textTheme.titleMedium?.copyWith(
+                    color: foreground,
+                    fontWeight: FontWeight.w700,
+                  ),
+                ),
+              ),
+              Icon(
+                Icons.chevron_right_rounded,
+                color: colorScheme.onSurfaceVariant,
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
 class _ParsedMetricKey {
   final String baseKey;
   final int? channel;

lib/widgets/settings/traffic_stats_reporting_section.dart

@@ -0,0 +1,107 @@
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+import '../../services/traffic_stats_reporting_service.dart';
+
+class TrafficStatsReportingSection extends StatelessWidget {
+  final TrafficStatsReportingService service;
+
+  const TrafficStatsReportingSection({super.key, required this.service});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        SwitchListTile(
+          secondary: const Icon(Icons.cloud_upload_outlined),
+          title: const Text('Anonymous RX stats reporting'),
+          subtitle: const Text(
+            'Upload RX live-traffic packet type and path mode totals to the fixed Cloudflare worker every 5 minutes.',
+          ),
+          value: service.isEnabled,
+          onChanged: (value) async {
+            await service.setEnabled(value);
+          },
+        ),
+        Padding(
+          padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+          child: DecoratedBox(
+            decoration: BoxDecoration(
+              color: theme.colorScheme.surfaceContainerLow,
+              borderRadius: BorderRadius.circular(12),
+              border: Border.all(
+                color: theme.colorScheme.outlineVariant.withValues(alpha: 0.5),
+              ),
+            ),
+            child: Padding(
+              padding: const EdgeInsets.all(12),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    'Upload status',
+                    style: theme.textTheme.titleSmall,
+                  ),
+                  const SizedBox(height: 8),
+                  Text(
+                    _statusText(service),
+                    style: theme.textTheme.bodyMedium,
+                  ),
+                  const SizedBox(height: 6),
+                  Text(
+                    'Ingest URL: ${TrafficStatsReportingService.ingestUri}',
+                    style: theme.textTheme.bodySmall?.copyWith(
+                      color: theme.colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  TextButton.icon(
+                    onPressed: _openStatsDashboard,
+                    icon: const Icon(Icons.open_in_new),
+                    label: const Text('View public stats'),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  static Future<void> _openStatsDashboard() async {
+    final url = TrafficStatsReportingService.dashboardUri;
+    if (await canLaunchUrl(url)) {
+      await launchUrl(url, mode: LaunchMode.externalApplication);
+    }
+  }
+
+  static String _statusText(TrafficStatsReportingService service) {
+    final buffer = StringBuffer();
+    buffer.write('Pending uploads: ${service.pendingUploadCount}');
+    if (service.lastSuccessAt != null) {
+      buffer.write(
+        '\nLast sent: ${_formatDateTime(service.lastSuccessAt!.toLocal())}',
+      );
+    } else {
+      buffer.write('\nLast sent: Never');
+    }
+    if (service.lastError != null && service.lastError!.isNotEmpty) {
+      buffer.write('\nLast error: ${service.lastError}');
+    } else {
+      buffer.write('\nLast error: None');
+    }
+    return buffer.toString();
+  }
+
+  static String _formatDateTime(DateTime value) {
+    final month = value.month.toString().padLeft(2, '0');
+    final day = value.day.toString().padLeft(2, '0');
+    final hour = value.hour.toString().padLeft(2, '0');
+    final minute = value.minute.toString().padLeft(2, '0');
+    final second = value.second.toString().padLeft(2, '0');
+    return '${value.year}-$month-$day $hour:$minute:$second';
+  }
+}

pubspec.lock

@@ -827,8 +827,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: a0deff8
-      resolved-ref: a0deff80fcbca974f0e18fe47971b76bec583109
+      ref: "0bb339f684f709cf5b9d40c07827cc62beb18a4d"
+      resolved-ref: "0bb339f684f709cf5b9d40c07827cc62beb18a4d"
       url: "https://github.com/dz0ny/meshcore_client.git"
     source: git
     version: "0.1.0"

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 2026.0323.2+41
+version: 2026.0403.1+45
 
 environment:
   sdk: ^3.9.2
@@ -44,7 +44,7 @@ dependencies:
   meshcore_client:
     git:
       url: https://github.com/dz0ny/meshcore_client.git
-      ref: a0deff8
+      ref: 0bb339f684f709cf5b9d40c07827cc62beb18a4d
 
   # Codec2 ultra-low-bitrate speech codec (FFI plugin)
   codec2_flutter:

test/providers/channels_provider_test.dart

@@ -1,6 +1,7 @@
 import 'dart:typed_data';
 
 import 'package:flutter_test/flutter_test.dart';
+import 'package:meshcore_sar_app/models/channel.dart';
 import 'package:meshcore_sar_app/providers/channels_provider.dart';
 
 void main() {
@@ -22,4 +23,38 @@ void main() {
       expect(provider.selectedChannel, isNull);
     });
   });
+
+  group('ChannelsProvider mesh hash lookup', () {
+    test('resolves a unique channel display name by hash byte', () {
+      final provider = ChannelsProvider();
+      final channel = Channel.create(index: 3, name: '#ops');
+
+      provider.addOrUpdateChannelObject(channel);
+
+      expect(
+        provider.getUniqueChannelDisplayNameByHashByte(channel.hashByte),
+        '#ops',
+      );
+    });
+
+    test('does not resolve ambiguous hash matches', () {
+      final provider = ChannelsProvider();
+      final secret = Uint8List.fromList(List<int>.filled(16, 7));
+      final firstChannel = Channel.create(
+        index: 1,
+        name: 'Ops 1',
+        explicitSecret: secret,
+      );
+
+      provider.addOrUpdateChannelObject(firstChannel);
+      provider.addOrUpdateChannelObject(
+        Channel.create(index: 2, name: 'Ops 2', explicitSecret: secret),
+      );
+
+      expect(
+        provider.getUniqueChannelDisplayNameByHashByte(firstChannel.hashByte),
+        isNull,
+      );
+    });
+  });
 }

test/providers/contacts_provider_test.dart

@@ -781,6 +781,19 @@ void main() {
       expect(updated.advLat, equals((44.123456 * 1e6).round()));
       expect(updated.advLon, equals((13.654321 * 1e6).round()));
       expect(updated.lastAdvert, equals(1700001234));
+      expect(updated.lastMod, equals(1700001234));
+      expect(
+        provider.estimatedLocationFor(updated.publicKeyHex),
+        isNotNull,
+      );
+      expect(
+        provider.estimatedLocationFor(updated.publicKeyHex)!.latitude,
+        closeTo(44.123456, 0.000001),
+      );
+      expect(
+        provider.estimatedLocationFor(updated.publicKeyHex)!.longitude,
+        closeTo(13.654321, 0.000001),
+      );
     });
 
     test('ignores unknown sender prefix safely', () {
@@ -880,7 +893,7 @@ void main() {
     });
 
     test(
-      'clears runtime contacts before sync without erasing persisted contacts or saved groups',
+      'keeps runtime contacts visible during sync without erasing persisted contacts or saved groups',
       () async {
         final key = createPublicKey(140);
         final pendingKey = createPublicKey(180);
@@ -893,8 +906,11 @@ void main() {
 
         await provider.prepareForDeviceContactSync();
 
-        expect(provider.chatContacts, isEmpty);
-        expect(provider.pendingAdverts, isEmpty);
+        expect(
+          provider.chatContacts.map((contact) => contact.advName),
+          contains('Synced Later'),
+        );
+        expect(provider.pendingAdverts, hasLength(1));
         expect(provider.savedGroupsForSection('teamMembers'), hasLength(1));
 
         final restored = ContactsProvider();

test/providers/messages_provider_retransmission_test.dart

@@ -239,11 +239,12 @@ void main() {
         );
 
         expect(provider.hasChannelSendWarning('c-warn-replay'), isFalse);
-        expect(provider.messages, hasLength(2));
+        expect(provider.messages, hasLength(1));
+        expect(provider.messages.single.id, equals('c-warn-replay'));
       });
     });
 
-    test('channel replay is kept separate for self sender within repeat window', () {
+    test('channel replay merges into sent message for self sender within repeat window', () {
       final provider = MessagesProvider();
       provider.resolveContactNameCallback = (_) => 'dz0ny (SI)';
       provider.addSentMessage(
@@ -259,10 +260,9 @@ void main() {
         ),
       );
 
-      expect(provider.messages, hasLength(2));
-      expect(provider.messages.first.id, equals('c-echo'));
-      expect(provider.messages.last.id, equals('c-echo-incoming'));
-      expect(provider.messages.last.senderName, equals('dz0ny (SI)'));
+      expect(provider.messages, hasLength(1));
+      expect(provider.messages.single.id, equals('c-echo'));
+      expect(provider.messages.single.pathLen, equals(1));
     });
 
     test(
@@ -309,7 +309,7 @@ void main() {
       expect(provider.messages, hasLength(2));
     });
 
-    test('channel replay stays separate using lazily resolved self name', () {
+    test('channel replay merges using lazily resolved self name', () {
       final provider = MessagesProvider();
       provider.addSentMessage(
         _buildSentChannelMessage(id: 'c-lazy', senderTimestamp: 1700000400),
@@ -325,12 +325,11 @@ void main() {
         ),
       );
 
-      expect(provider.messages, hasLength(2));
-      expect(provider.messages.first.id, equals('c-lazy'));
-      expect(provider.messages.last.id, equals('c-lazy-incoming'));
+      expect(provider.messages, hasLength(1));
+      expect(provider.messages.single.id, equals('c-lazy'));
     });
 
-    test('channel replay stays separate for meshcore-prefixed self sender name', () {
+    test('channel replay merges for meshcore-prefixed self sender name', () {
       final provider = MessagesProvider();
       provider.resolveContactNameCallback = (_) => 'MeshCore-dz0ny (SI)';
       provider.addSentMessage(
@@ -346,9 +345,8 @@ void main() {
         ),
       );
 
-      expect(provider.messages, hasLength(2));
-      expect(provider.messages.first.id, equals('c-prefix'));
-      expect(provider.messages.last.id, equals('c-prefix-incoming'));
+      expect(provider.messages, hasLength(1));
+      expect(provider.messages.single.id, equals('c-prefix'));
     });
 
     test('duplicate incoming message increments received copy count', () {
@@ -425,6 +423,133 @@ void main() {
       expect(provider.messages.single.id, equals('handle-1'));
     });
 
+    test('channel duplicates only dedupe against the latest channel message', () {
+      final provider = MessagesProvider();
+      final sender = Uint8List.fromList([9, 8, 7, 6, 5, 4]);
+
+      provider.addMessage(
+        Message(
+          id: 'channel-first',
+          messageType: MessageType.channel,
+          channelIdx: 2,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000820,
+          text: 'same payload',
+          senderName: 'Radio Alpha',
+          receivedAt: DateTime.now(),
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+      provider.addMessage(
+        Message(
+          id: 'channel-middle',
+          messageType: MessageType.channel,
+          channelIdx: 2,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000825,
+          text: 'different payload',
+          senderName: 'Radio Bravo',
+          receivedAt: DateTime.now(),
+          senderPublicKeyPrefix: Uint8List.fromList([1, 2, 3, 4, 5, 6]),
+        ),
+      );
+      provider.addMessage(
+        Message(
+          id: 'channel-repeat',
+          messageType: MessageType.channel,
+          channelIdx: 2,
+          pathLen: 2,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000830,
+          text: 'same payload',
+          senderName: 'Radio Alpha',
+          receivedAt: DateTime.now(),
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+
+      expect(provider.messages, hasLength(3));
+      expect(provider.messages.last.id, equals('channel-repeat'));
+    });
+
+    test('adjacent channel duplicates still dedupe within 5 seconds', () {
+      final provider = MessagesProvider();
+      final sender = Uint8List.fromList([4, 5, 6, 7, 8, 9]);
+      final baseTime = DateTime.fromMillisecondsSinceEpoch(1700000840000);
+
+      provider.addMessage(
+        Message(
+          id: 'adjacent-1',
+          messageType: MessageType.channel,
+          channelIdx: 3,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000840,
+          text: 'same payload',
+          senderName: 'Radio Charlie',
+          receivedAt: baseTime,
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+      provider.addMessage(
+        Message(
+          id: 'adjacent-2',
+          messageType: MessageType.channel,
+          channelIdx: 3,
+          pathLen: 2,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000845,
+          text: 'same payload',
+          senderName: 'Radio Charlie',
+          receivedAt: baseTime.add(const Duration(seconds: 4)),
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+
+      expect(provider.messages, hasLength(1));
+      expect(provider.messages.single.id, equals('adjacent-1'));
+    });
+
+    test('channel duplicates outside 5 second window are kept', () {
+      final provider = MessagesProvider();
+      final sender = Uint8List.fromList([6, 7, 8, 9, 0, 1]);
+      final baseTime = DateTime.fromMillisecondsSinceEpoch(1700000850000);
+
+      provider.addMessage(
+        Message(
+          id: 'window-1',
+          messageType: MessageType.channel,
+          channelIdx: 4,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000850,
+          text: 'same payload',
+          senderName: 'Radio Delta',
+          receivedAt: baseTime,
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+      provider.addMessage(
+        Message(
+          id: 'window-2',
+          messageType: MessageType.channel,
+          channelIdx: 4,
+          pathLen: 2,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000855,
+          text: 'same payload',
+          senderName: 'Radio Delta',
+          receivedAt: baseTime.add(const Duration(seconds: 6)),
+          senderPublicKeyPrefix: sender,
+        ),
+      );
+
+      expect(provider.messages, hasLength(2));
+      expect(provider.messages.last.id, equals('window-2'));
+    });
+
     test('display list collapses stored duplicates and sums copy counts', () {
       final provider = MessagesProvider();
       final sender = Uint8List.fromList([5, 4, 3, 2, 1, 0]);
@@ -465,6 +590,30 @@ void main() {
       expect(display.single.occurrenceCount, equals(2));
     });
 
+    test('display list keeps a single sent message for self replay', () {
+      final provider = MessagesProvider();
+      provider.resolveContactNameCallback = (_) => 'dz0ny (SI)';
+      provider.addSentMessage(
+        _buildSentChannelMessage(id: 'display-sent', senderTimestamp: 1700000900),
+      );
+      provider.markMessageSent('display-sent', 0, 0);
+
+      provider.addMessage(
+        _buildReceivedChannelReplay(
+          id: 'display-received',
+          senderTimestamp: 1700000901,
+          senderName: 'dz0ny (SI)',
+        ),
+      );
+
+      final display = provider.buildDisplayMessages(
+        provider.getRecentMessages(),
+      );
+
+      expect(display, hasLength(1));
+      expect(display.single.message.id, equals('display-sent'));
+    });
+
     test('missing ACK schedules a delayed retransmission', () {
       fakeAsync((async) {
         final provider = MessagesProvider();

test/providers/sensors_provider_test.dart

@@ -356,7 +356,7 @@ void main() {
     expect(connectionProvider.pingCalls, 2);
   });
 
-  test('refreshDueSensors refreshes self every minute', () async {
+  test('refreshDueSensors refreshes self every 30 seconds', () async {
     SharedPreferences.setMockInitialValues({});
     final selfKey = Uint8List(32)..[0] = 0x66;
     final contactsProvider = ContactsProvider();
@@ -383,14 +383,21 @@ void main() {
       contactsProvider: contactsProvider,
       connectionProvider: connectionProvider,
     );
-    expect(connectionProvider.pingCalls, 1);
+    expect(connectionProvider.pingCalls, 2);
+
+    await provider.refreshDueSensors(
+      now: start.add(const Duration(seconds: 59)),
+      contactsProvider: contactsProvider,
+      connectionProvider: connectionProvider,
+    );
+    expect(connectionProvider.pingCalls, 2);
 
     await provider.refreshDueSensors(
       now: start.add(const Duration(minutes: 1)),
       contactsProvider: contactsProvider,
       connectionProvider: connectionProvider,
     );
-    expect(connectionProvider.pingCalls, 2);
+    expect(connectionProvider.pingCalls, 3);
   });
 
   test(

test/screens/live_traffic_screen_test.dart

@@ -1,10 +1,12 @@
-import 'dart:typed_data';
-
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:meshcore_sar_app/models/channel.dart';
 import 'package:meshcore_sar_app/models/ble_packet_log.dart';
 import 'package:meshcore_sar_app/l10n/app_localizations.dart';
+import 'package:meshcore_sar_app/providers/channels_provider.dart';
 import 'package:meshcore_sar_app/screens/live_traffic_screen.dart';
+import 'package:provider/provider.dart';
 
 BlePacketLog _log({
   required DateTime timestamp,
@@ -51,15 +53,52 @@ List<int> _multiHopRaw({
   ];
 }
 
-Widget _testApp(Widget child) {
-  return MaterialApp(
+Widget _testApp(Widget child, {ChannelsProvider? channelsProvider}) {
+  final app = MaterialApp(
     localizationsDelegates: AppLocalizations.localizationsDelegates,
     supportedLocales: AppLocalizations.supportedLocales,
     home: child,
   );
+  if (channelsProvider == null) {
+    return app;
+  }
+  return ChangeNotifierProvider.value(value: channelsProvider, child: app);
 }
 
 void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  final launchedUrls = <String>[];
+
+  setUp(() {
+    launchedUrls.clear();
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(
+          const MethodChannel('plugins.flutter.io/url_launcher'),
+          (call) async {
+            switch (call.method) {
+              case 'canLaunch':
+                return true;
+              case 'launch':
+                final arguments = Map<dynamic, dynamic>.from(
+                  call.arguments as Map<dynamic, dynamic>,
+                );
+                launchedUrls.add(arguments['url'] as String);
+                return true;
+            }
+            return null;
+          },
+        );
+  });
+
+  tearDown(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(
+          const MethodChannel('plugins.flutter.io/url_launcher'),
+          null,
+        );
+  });
+
   testWidgets('shows empty state before traffic arrives', (tester) async {
     final logs = <BlePacketLog>[];
     final refresh = ValueNotifier<int>(0);
@@ -190,6 +229,103 @@ void main() {
     expect(find.textContaining('Size: 3 bytes'), findsOneWidget);
   });
 
+  testWidgets('shows known channel name for group traffic', (tester) async {
+    final logs = <BlePacketLog>[];
+    final refresh = ValueNotifier<int>(0);
+    final channel = Channel.create(index: 3, name: '#ops');
+    final channelsProvider = ChannelsProvider()
+      ..initializePublicChannel()
+      ..addOrUpdateChannelObject(channel);
+    final now = DateTime(2026, 3, 12, 12, 0, 0);
+
+    logs.add(
+      _log(
+        timestamp: now.subtract(const Duration(seconds: 4)),
+        direction: PacketDirection.rx,
+        rawData: [
+          ..._multiHopRaw(hops: [0xC0, 0x10], payloadType: 0x05),
+          channel.hashByte,
+        ],
+        responseCode: 0x88,
+      ),
+    );
+
+    await tester.pumpWidget(
+      _testApp(
+        LiveTrafficScreen(
+          logReader: () => logs,
+          refreshListenable: refresh,
+          now: () => now,
+        ),
+        channelsProvider: channelsProvider,
+      ),
+    );
+
+    expect(find.text('#ops'), findsOneWidget);
+    expect(find.text('Channel: #ops (${channel.hashHex})'), findsOneWidget);
+    expect(find.text('FLOOD GROUP_TEXT'), findsNothing);
+  });
+
+  testWidgets('shows packet type help sheet from the app bar', (tester) async {
+    final logs = <BlePacketLog>[];
+    final refresh = ValueNotifier<int>(0);
+    final now = DateTime(2026, 3, 12, 12, 0, 0);
+
+    await tester.pumpWidget(
+      _testApp(
+        LiveTrafficScreen(
+          logReader: () => logs,
+          refreshListenable: refresh,
+          now: () => now,
+        ),
+      ),
+    );
+
+    await tester.tap(find.byTooltip('Packet type help'));
+    await tester.pumpAndSettle();
+
+    expect(find.text('Packet Types'), findsOneWidget);
+    await tester.scrollUntilVisible(
+      find.text('FLOOD RETURNED_PATH'),
+      300,
+      scrollable: find.byType(Scrollable).last,
+    );
+    await tester.pumpAndSettle();
+    expect(find.text('FLOOD RETURNED_PATH'), findsOneWidget);
+    expect(
+      find.textContaining('stores that returned path as the peer\'s direct out-path'),
+      findsOneWidget,
+    );
+    await tester.scrollUntilVisible(
+      find.text('FLOOD CONTROL'),
+      300,
+      scrollable: find.byType(Scrollable).last,
+    );
+    await tester.pumpAndSettle();
+    expect(find.text('FLOOD CONTROL'), findsOneWidget);
+  });
+
+  testWidgets('opens public stats from the app bar', (tester) async {
+    final logs = <BlePacketLog>[];
+    final refresh = ValueNotifier<int>(0);
+    final now = DateTime(2026, 3, 12, 12, 0, 0);
+
+    await tester.pumpWidget(
+      _testApp(
+        LiveTrafficScreen(
+          logReader: () => logs,
+          refreshListenable: refresh,
+          now: () => now,
+        ),
+      ),
+    );
+
+    await tester.tap(find.byTooltip('View public stats'));
+    await tester.pump();
+
+    expect(launchedUrls, ['https://mcstats.dz0ny.dev']);
+  });
+
   testWidgets('summary metrics expand across wide layouts', (tester) async {
     tester.view.physicalSize = const Size(1200, 900);
     tester.view.devicePixelRatio = 1;

test/screens/messages_tab_test.dart

@@ -13,6 +13,7 @@ import 'package:meshcore_sar_app/providers/map_provider.dart';
 import 'package:meshcore_sar_app/providers/messages_provider.dart';
 import 'package:meshcore_sar_app/providers/voice_provider.dart';
 import 'package:meshcore_sar_app/screens/messages_tab.dart';
+import 'package:meshcore_sar_app/services/message_destination_preferences.dart';
 import 'package:meshcore_sar_app/services/voice_codec_service.dart';
 import 'package:meshcore_sar_app/services/voice_player_service.dart';
 import 'package:provider/provider.dart';
@@ -208,4 +209,227 @@ void main() {
     connectionProvider.dispose();
     channelsProvider.dispose();
   });
+
+  testWidgets(
+    'locks messages tab to the configured channel and removes the selector affordance',
+    (tester) async {
+      final lockedChannel = buildContact(
+        name: '#ops',
+        type: ContactType.channel,
+        secondByte: 2,
+      );
+      SharedPreferences.setMockInitialValues({
+        'message_locked_destination_enabled': true,
+        'message_locked_destination_type':
+            MessageDestinationPreferences.destinationTypeChannel,
+        'message_locked_recipient_public_key': lockedChannel.publicKeyHex,
+      });
+
+      final connectionProvider = ConnectionProvider();
+      final contactsProvider = ContactsProvider();
+      final messagesProvider = MessagesProvider();
+      final mapProvider = MapProvider();
+      final drawingProvider = DrawingProvider();
+      await messagesProvider.initialize();
+      await drawingProvider.initialize();
+      final channelsProvider = ChannelsProvider()..initializePublicChannel();
+      final voiceProvider = VoiceProvider(
+        codec: VoiceCodecService(),
+        player: VoicePlayerService(),
+      );
+      final imageProvider = ip.ImageProvider();
+      final appProvider = AppProvider(
+        connectionProvider: connectionProvider,
+        contactsProvider: contactsProvider,
+        messagesProvider: messagesProvider,
+        drawingProvider: drawingProvider,
+        channelsProvider: channelsProvider,
+        voiceProvider: voiceProvider,
+        imageProvider: imageProvider,
+      );
+
+      contactsProvider.addContacts([lockedChannel]);
+      messagesProvider.addMessage(
+        Message(
+          id: 'public-message',
+          messageType: MessageType.channel,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000200,
+          text: 'Public chatter',
+          receivedAt: DateTime.now(),
+          channelIdx: 0,
+        ),
+      );
+      messagesProvider.addMessage(
+        Message(
+          id: 'locked-message',
+          messageType: MessageType.channel,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000201,
+          text: 'Ops chatter',
+          receivedAt: DateTime.now(),
+          channelIdx: 2,
+        ),
+      );
+
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider.value(value: connectionProvider),
+            ChangeNotifierProvider.value(value: contactsProvider),
+            ChangeNotifierProvider.value(value: messagesProvider),
+            ChangeNotifierProvider.value(value: mapProvider),
+            ChangeNotifierProvider.value(value: drawingProvider),
+            ChangeNotifierProvider.value(value: channelsProvider),
+            ChangeNotifierProvider.value(value: voiceProvider),
+            ChangeNotifierProvider.value(value: imageProvider),
+            ChangeNotifierProvider.value(value: appProvider),
+          ],
+          child: MaterialApp(
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: const Scaffold(body: MessagesTab(isActive: true)),
+          ),
+        ),
+      );
+
+      await tester.pumpAndSettle();
+
+      expect(find.text('Ops chatter'), findsOneWidget);
+      expect(find.text('Public chatter'), findsNothing);
+      expect(
+        find.byKey(const ValueKey('messages_composer_destination_locked')),
+        findsOneWidget,
+      );
+      expect(
+        find.byKey(const ValueKey('messages_composer_destination_selector')),
+        findsNothing,
+      );
+
+      appProvider.dispose();
+      voiceProvider.dispose();
+      imageProvider.dispose();
+      drawingProvider.dispose();
+      mapProvider.dispose();
+      messagesProvider.dispose();
+      contactsProvider.dispose();
+      connectionProvider.dispose();
+      channelsProvider.dispose();
+    },
+  );
+
+  testWidgets(
+    'contact navigation temporarily overrides the lock while keeping the selector hidden',
+    (tester) async {
+      final directContact = buildContact(
+        name: 'Tim',
+        type: ContactType.chat,
+        secondByte: 9,
+      );
+      SharedPreferences.setMockInitialValues({
+        'message_locked_destination_enabled': true,
+        'message_locked_destination_type':
+            MessageDestinationPreferences.destinationTypeChannel,
+      });
+
+      final connectionProvider = ConnectionProvider();
+      final contactsProvider = ContactsProvider();
+      final messagesProvider = MessagesProvider();
+      final mapProvider = MapProvider();
+      final drawingProvider = DrawingProvider();
+      await messagesProvider.initialize();
+      await drawingProvider.initialize();
+      final channelsProvider = ChannelsProvider()..initializePublicChannel();
+      final voiceProvider = VoiceProvider(
+        codec: VoiceCodecService(),
+        player: VoicePlayerService(),
+      );
+      final imageProvider = ip.ImageProvider();
+      final appProvider = AppProvider(
+        connectionProvider: connectionProvider,
+        contactsProvider: contactsProvider,
+        messagesProvider: messagesProvider,
+        drawingProvider: drawingProvider,
+        channelsProvider: channelsProvider,
+        voiceProvider: voiceProvider,
+        imageProvider: imageProvider,
+      );
+
+      contactsProvider.addContacts([directContact]);
+      messagesProvider.addMessage(
+        Message(
+          id: 'public-message',
+          messageType: MessageType.channel,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000300,
+          text: 'Public chatter',
+          receivedAt: DateTime.now(),
+          channelIdx: 0,
+        ),
+      );
+      messagesProvider.addMessage(
+        Message(
+          id: 'direct-message',
+          messageType: MessageType.contact,
+          senderPublicKeyPrefix: directContact.publicKey.sublist(0, 6),
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp: 1700000301,
+          text: 'Direct chatter',
+          receivedAt: DateTime.now(),
+        ),
+      );
+      messagesProvider.navigateToDestination(
+        MessageDestinationPreferences.destinationTypeContact,
+        recipientPublicKeyHex: directContact.publicKeyHex,
+      );
+
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider.value(value: connectionProvider),
+            ChangeNotifierProvider.value(value: contactsProvider),
+            ChangeNotifierProvider.value(value: messagesProvider),
+            ChangeNotifierProvider.value(value: mapProvider),
+            ChangeNotifierProvider.value(value: drawingProvider),
+            ChangeNotifierProvider.value(value: channelsProvider),
+            ChangeNotifierProvider.value(value: voiceProvider),
+            ChangeNotifierProvider.value(value: imageProvider),
+            ChangeNotifierProvider.value(value: appProvider),
+          ],
+          child: MaterialApp(
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: const Scaffold(body: MessagesTab(isActive: true)),
+          ),
+        ),
+      );
+
+      await tester.pumpAndSettle();
+
+      expect(find.text('Direct chatter'), findsOneWidget);
+      expect(find.text('Public chatter'), findsNothing);
+      expect(
+        find.byKey(const ValueKey('messages_composer_destination_locked')),
+        findsOneWidget,
+      );
+      expect(
+        find.byKey(const ValueKey('messages_composer_destination_selector')),
+        findsNothing,
+      );
+
+      appProvider.dispose();
+      voiceProvider.dispose();
+      imageProvider.dispose();
+      drawingProvider.dispose();
+      mapProvider.dispose();
+      messagesProvider.dispose();
+      contactsProvider.dispose();
+      connectionProvider.dispose();
+      channelsProvider.dispose();
+    },
+  );
 }

test/services/live_traffic_summary_test.dart

@@ -196,5 +196,18 @@ void main() {
         1,
       );
     });
+
+    test('exposes detailed descriptions for known packet types', () {
+      final returnedPath = LiveTrafficEntry.payloadTypeDetails(0x08);
+      final control = LiveTrafficEntry.payloadTypeDetails(0x0B);
+
+      expect(returnedPath.title, 'FLOOD RETURNED_PATH');
+      expect(
+        returnedPath.description,
+        contains('stores that returned path as the peer\'s direct out-path'),
+      );
+      expect(control.label, 'Control packet');
+      expect(control.description, contains('discovery request and response'));
+    });
   });
 }

test/services/message_storage_service_test.dart

@@ -1,5 +1,4 @@
-import 'dart:typed_data';
-
+import 'package:flutter/foundation.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:meshcore_client/meshcore_client.dart';
 import 'package:meshcore_sar_app/models/message_reception_details.dart';
@@ -8,11 +7,16 @@ import 'package:shared_preferences/shared_preferences.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
+  final originalDebugPrint = debugPrint;
 
   setUp(() {
     SharedPreferences.setMockInitialValues({});
   });
 
+  tearDown(() {
+    debugPrint = originalDebugPrint;
+  });
+
   test(
     'retains path bytes for stored unread message when reception sidecar is missing',
     () async {
@@ -155,4 +159,34 @@ void main() {
     expect(customMessages.single.id, customMessage.id);
     expect(customMessages.single.text, customMessage.text);
   });
+
+  test('skips unchanged message snapshots', () async {
+    final storage = MessageStorageService();
+    final logs = <String>[];
+    debugPrint = (String? message, {int? wrapWidth}) {
+      if (message != null) {
+        logs.add(message);
+      }
+    };
+    final message = Message(
+      id: 'msg-stable',
+      messageType: MessageType.channel,
+      senderPublicKeyPrefix: Uint8List.fromList([3, 3, 3, 3, 3, 3]),
+      channelIdx: 3,
+      pathLen: 1,
+      textType: MessageTextType.plain,
+      senderTimestamp: 1700003000,
+      text: 'Stable snapshot',
+      receivedAt: DateTime.fromMillisecondsSinceEpoch(1700003000500),
+      isRead: true,
+    );
+
+    await storage.saveMessages([message]);
+    await storage.saveMessages([message]);
+
+    expect(
+      logs.where((log) => log.contains('Saved 1 messages to storage')),
+      hasLength(1),
+    );
+  });
 }

test/services/path_history_service_test.dart

@@ -207,6 +207,99 @@ void main() {
     },
   );
 
+  test(
+    'confirmed direct delivery promotes an observed path to learned',
+    () async {
+      final service = PathHistoryService();
+      final contact = _buildContact(
+        seed: 4,
+        pathBytes: [0xAA, 0xBB],
+        hopCount: 2,
+        hashSize: 1,
+      );
+
+      await service.initialize();
+      await service.recordReceivedBytePath(contact.publicKeyHex, [
+        0xBB,
+        0xAA,
+      ], 1);
+      await service.recordPathResult(
+        contact.publicKeyHex,
+        PathSelection(
+          mode: PathSelectionMode.directHistorical,
+          pathBytes: Uint8List.fromList([0xAA, 0xBB]),
+          hopCount: 2,
+          hashSize: 1,
+        ),
+        success: true,
+        roundTripTimeMs: 150,
+      );
+
+      final history = service.historyFor(contact.publicKeyHex);
+      expect(history.directPaths, hasLength(1));
+      expect(history.directPaths.single.source, PathRecordSource.learned);
+      expect(history.directPaths.single.successCount, 1);
+      expect(history.directPaths.single.lastRoundTripTimeMs, 150);
+    },
+  );
+
+  test('clear history removes stored direct paths for one contact', () async {
+    final service = PathHistoryService();
+
+    await service.initialize();
+    await service.recordReceivedBytePath('abc123', [0x01, 0x02], 1);
+    await service.recordReceivedBytePath('def456', [0x03, 0x04], 1);
+
+    expect(service.historyFor('abc123').directPaths, hasLength(1));
+    expect(service.historyFor('def456').directPaths, hasLength(1));
+
+    await service.clearHistoryFor('abc123');
+
+    expect(service.historyFor('abc123').directPaths, isEmpty);
+    expect(service.historyFor('def456').directPaths, hasLength(1));
+  });
+
+  test(
+    'clear history for contact suppresses immediate relearn of current route',
+    () async {
+      final service = PathHistoryService();
+      final contact = _buildContact(
+        seed: 5,
+        pathBytes: [0xAA, 0xBB],
+        hopCount: 2,
+        hashSize: 1,
+      );
+
+      await service.initialize();
+      await service.recordLearnedPath(contact);
+      expect(service.historyFor(contact.publicKeyHex).directPaths, hasLength(1));
+
+      await service.clearHistoryForContact(contact);
+      expect(service.historyFor(contact.publicKeyHex).directPaths, isEmpty);
+
+      await service.recordLearnedPath(contact);
+      expect(service.historyFor(contact.publicKeyHex).directPaths, isEmpty);
+
+      await service.recordPathResult(
+        contact.publicKeyHex,
+        PathSelection(
+          mode: PathSelectionMode.directHistorical,
+          pathBytes: Uint8List.fromList([0xAA, 0xBB]),
+          hopCount: 2,
+          hashSize: 1,
+        ),
+        success: true,
+        roundTripTimeMs: 120,
+      );
+
+      expect(service.historyFor(contact.publicKeyHex).directPaths, hasLength(1));
+      expect(
+        service.historyFor(contact.publicKeyHex).directPaths.single.source,
+        PathRecordSource.learned,
+      );
+    },
+  );
+
   test('last successful direct path is chosen by location fit', () async {
     final service = PathHistoryService();
     final contact = _buildContact(

test/services/traffic_stats_reporting_service_test.dart

@@ -0,0 +1,280 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:meshcore_sar_app/models/ble_packet_log.dart';
+import 'package:meshcore_sar_app/services/profiles_feature_service.dart';
+import 'package:meshcore_sar_app/services/traffic_stats_reporting_service.dart';
+
+BlePacketLog _log({
+  required DateTime timestamp,
+  required List<int> rawData,
+  int responseCode = 0x88,
+}) {
+  return BlePacketLog(
+    timestamp: timestamp,
+    rawData: Uint8List.fromList(rawData),
+    direction: PacketDirection.rx,
+    responseCode: responseCode,
+  );
+}
+
+List<int> _routeRaw({
+  required int payloadType,
+  required int pathDescriptor,
+  List<int> pathBytes = const <int>[],
+}) {
+  return <int>[
+    0x88,
+    0x00,
+    0x00,
+    payloadType << 2,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    pathDescriptor,
+    ...pathBytes,
+  ];
+}
+
+void main() {
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+    ProfileStorageScope.setScope(
+      profilesEnabled: true,
+      activeProfileId: 'alpha',
+    );
+  });
+
+  test('uploads fixed packet type and path mode counters', () async {
+    final capturedPayloads = <Map<String, dynamic>>[];
+    DateTime now = DateTime.utc(2026, 4, 3, 10, 6);
+    final service = TrafficStatsReportingService(
+      client: MockClient((request) async {
+        capturedPayloads.add(
+          jsonDecode(request.body) as Map<String, dynamic>,
+        );
+        return http.Response('{}', 200);
+      }),
+      now: () => now,
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+
+    await service.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+    expect(service.isEnabled, isTrue);
+    await service.processLogs(<BlePacketLog>[
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 5),
+        rawData: _routeRaw(
+          payloadType: 0x04,
+          pathDescriptor: 0x01,
+          pathBytes: const <int>[0xC0],
+        ),
+      ),
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 10),
+        rawData: _routeRaw(
+          payloadType: 0x05,
+          pathDescriptor: 0x41,
+          pathBytes: const <int>[0xC0, 0x10],
+        ),
+      ),
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 15),
+        rawData: _routeRaw(
+          payloadType: 0x08,
+          pathDescriptor: 0x81,
+          pathBytes: const <int>[0xC0, 0x10, 0x63],
+        ),
+      ),
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 20),
+        rawData: _routeRaw(
+          payloadType: 0x01,
+          pathDescriptor: 0x00,
+        ),
+      ),
+    ]);
+
+    expect(capturedPayloads, hasLength(1));
+
+    final payload = capturedPayloads.single;
+    final counts = payload['counts'] as Map<String, dynamic>;
+    expect(payload['deviceKey6'], 'a1b2c3d4e5f6');
+    expect(payload.containsKey('publicKey'), isFalse);
+    expect(payload.containsKey('location'), isFalse);
+    expect(counts['pt_04'], 1);
+    expect(counts['pt_05'], 1);
+    expect(counts['pt_08'], 1);
+    expect(counts['pt_01'], 1);
+    expect(counts['path_mode_1b'], 1);
+    expect(counts['path_mode_2b'], 1);
+    expect(counts['path_mode_3b'], 1);
+    expect(counts['path_mode_none'], 1);
+    expect(service.pendingUploadCount, 0);
+
+    service.dispose();
+  });
+
+  test('classifies malformed route descriptors as decode and path failures', () async {
+    final capturedPayloads = <Map<String, dynamic>>[];
+    final service = TrafficStatsReportingService(
+      client: MockClient((request) async {
+        capturedPayloads.add(
+          jsonDecode(request.body) as Map<String, dynamic>,
+        );
+        return http.Response('{}', 200);
+      }),
+      now: () => DateTime.utc(2026, 4, 3, 10, 6),
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+
+    await service.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+    await service.setEnabled(true);
+    await service.processLogs(<BlePacketLog>[
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 30),
+        rawData: _routeRaw(
+          payloadType: 0x04,
+          pathDescriptor: 0x41,
+        ),
+      ),
+    ]);
+
+    final counts =
+        (capturedPayloads.single['counts'] as Map<String, dynamic>);
+    expect(counts['decode_fail'], 1);
+    expect(counts['path_mode_unknown'], 1);
+
+    service.dispose();
+  });
+
+  test('persists queue and retries deterministically', () async {
+    final requestBodies = <Map<String, dynamic>>[];
+    var shouldFail = true;
+    DateTime now = DateTime.utc(2026, 4, 3, 10, 6);
+
+    final failingService = TrafficStatsReportingService(
+      client: MockClient((request) async {
+        requestBodies.add(
+          jsonDecode(request.body) as Map<String, dynamic>,
+        );
+        if (shouldFail) {
+          return http.Response('nope', 503);
+        }
+        return http.Response('{}', 200);
+      }),
+      now: () => now,
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+
+    await failingService.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+    await failingService.setEnabled(true);
+    await failingService.processLogs(<BlePacketLog>[
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 5),
+        rawData: _routeRaw(
+          payloadType: 0x04,
+          pathDescriptor: 0x01,
+          pathBytes: const <int>[0xC0],
+        ),
+      ),
+    ]);
+
+    expect(failingService.pendingUploadCount, 1);
+    expect(failingService.lastError, 'Upload failed (503)');
+    final prefs = await SharedPreferences.getInstance();
+    expect(
+      prefs.containsKey('traffic_stats_reporting_queue'),
+      isTrue,
+    );
+    expect(
+      requestBodies.single['reportId'],
+      'a1b2c3d4e5f6:2026-04-03T10:00:00.000Z',
+    );
+    failingService.dispose();
+
+    shouldFail = false;
+    now = DateTime.utc(2026, 4, 3, 10, 7);
+    final retryService = TrafficStatsReportingService(
+      client: MockClient((request) async {
+        requestBodies.add(
+          jsonDecode(request.body) as Map<String, dynamic>,
+        );
+        return http.Response('{}', 200);
+      }),
+      now: () => now,
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+    await retryService.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+    await retryService.flushPendingUploads();
+
+    expect(retryService.pendingUploadCount, 0);
+    expect(retryService.lastError, isNull);
+    expect(retryService.lastSuccessAt, now);
+    retryService.dispose();
+  });
+
+  test('ignores legacy interval preferences and keeps 5 minute windows', () async {
+    SharedPreferences.setMockInitialValues({
+      'traffic_stats_reporting_interval_minutes': 15,
+    });
+    final capturedPayloads = <Map<String, dynamic>>[];
+    final service = TrafficStatsReportingService(
+      client: MockClient((request) async {
+        capturedPayloads.add(
+          jsonDecode(request.body) as Map<String, dynamic>,
+        );
+        return http.Response('{}', 200);
+      }),
+      now: () => DateTime.utc(2026, 4, 3, 10, 6),
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+
+    await service.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+    await service.setEnabled(true);
+    await service.processLogs(<BlePacketLog>[
+      _log(
+        timestamp: DateTime.utc(2026, 4, 3, 10, 0, 5),
+        rawData: _routeRaw(
+          payloadType: 0x04,
+          pathDescriptor: 0x01,
+          pathBytes: const <int>[0xC0],
+        ),
+      ),
+    ]);
+
+    final prefs = await SharedPreferences.getInstance();
+    expect(prefs.getBool('traffic_stats_reporting_enabled'), isTrue);
+    expect(prefs.containsKey('traffic_stats_reporting_interval_minutes'), isFalse);
+    expect(
+      prefs.containsKey('profile.alpha.traffic_stats_reporting_enabled'),
+      isFalse,
+    );
+    expect(
+      prefs.containsKey(
+        'profile.alpha.traffic_stats_reporting_interval_minutes',
+      ),
+      isFalse,
+    );
+    expect(service.intervalMinutes, 5);
+    expect(capturedPayloads, hasLength(1));
+
+    service.dispose();
+  });
+}

test/widgets/sensor_telemetry_card_test.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_map/flutter_map.dart' as flutter_map;
 import 'package:flutter_test/flutter_test.dart';
+import 'package:latlong2/latlong.dart';
 import 'package:meshcore_sar_app/l10n/app_localizations.dart';
 import 'package:meshcore_sar_app/models/contact.dart';
 import 'package:meshcore_sar_app/providers/sensors_provider.dart';
@@ -140,6 +142,8 @@ void main() {
   });
 
   testWidgets('renders MeshCore custom weather metrics', (tester) async {
+    tester.platformDispatcher.localeTestValue = const Locale('sl', 'SI');
+    addTearDown(tester.platformDispatcher.clearLocaleTestValue);
     final publicKey = Uint8List(32);
     publicKey[0] = 0x46;
     final contact = Contact(
@@ -185,11 +189,130 @@ void main() {
     expect(find.text('Wind gust'), findsOneWidget);
     expect(find.text('Dew point'), findsOneWidget);
     expect(find.text('Rain'), findsOneWidget);
-    expect(find.text('3.7 m/s'), findsOneWidget);
+    expect(find.textContaining('km/h'), findsOneWidget);
+    expect(find.textContaining('m/s'), findsNothing);
     expect(find.text('2°C'), findsOneWidget);
     expect(find.text('12.3 mm'), findsOneWidget);
   });
 
+  testWidgets('renders speed in mph for imperial system locale', (
+    tester,
+  ) async {
+    tester.platformDispatcher.localeTestValue = const Locale('en', 'US');
+    addTearDown(tester.platformDispatcher.clearLocaleTestValue);
+
+    final publicKey = Uint8List(32);
+    publicKey[0] = 0x4A;
+    final contact = Contact(
+      publicKey: publicKey,
+      type: ContactType.sensor,
+      flags: 0,
+      outPathLen: 0,
+      outPath: Uint8List(64),
+      advName: 'WX Station',
+      lastAdvert: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+      advLat: 0,
+      advLon: 0,
+      lastMod: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+      telemetry: ContactTelemetry(
+        timestamp: DateTime.now().subtract(const Duration(minutes: 1)),
+        extraSensorData: const {'speed_2': 3.7},
+      ),
+    );
+
+    await tester.pumpWidget(
+      MaterialApp(
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: Scaffold(
+          body: SensorTelemetryCard(
+            contact: contact,
+            state: SensorRefreshState.idle,
+            visibleFields: const {'extra:speed_2'},
+            fieldSpans: sensorFullWidthFieldSpans(const {'extra:speed_2'}),
+          ),
+        ),
+      ),
+    );
+
+    expect(find.textContaining('mph'), findsOneWidget);
+    expect(find.textContaining('m/s'), findsNothing);
+  });
+
+  testWidgets('gps preview map recenters when telemetry location changes', (
+    tester,
+  ) async {
+    final publicKey = Uint8List(32);
+    publicKey[0] = 0x4B;
+
+    Contact buildGpsContact(double latitude, double longitude) => Contact(
+      publicKey: publicKey,
+      type: ContactType.sensor,
+      flags: 0,
+      outPathLen: 0,
+      outPath: Uint8List(64),
+      advName: 'GPS Station',
+      lastAdvert: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+      advLat: 0,
+      advLon: 0,
+      lastMod: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+      telemetry: ContactTelemetry(
+        gpsLocation: LatLng(latitude, longitude),
+        timestamp: DateTime.now().subtract(const Duration(minutes: 1)),
+      ),
+    );
+
+    var contact = buildGpsContact(46.0569, 14.5058);
+
+    await tester.pumpWidget(
+      StatefulBuilder(
+        builder: (context, setState) {
+          return MaterialApp(
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: Scaffold(
+              body: Column(
+                children: [
+                  ElevatedButton(
+                    onPressed: () {
+                      setState(() {
+                        contact = buildGpsContact(46.1000, 14.6000);
+                      });
+                    },
+                    child: const Text('Update'),
+                  ),
+                  SensorTelemetryCard(
+                    contact: contact,
+                    state: SensorRefreshState.idle,
+                    visibleFields: const {'gps'},
+                    fieldSpans: sensorFullWidthFieldSpans(const {'gps'}),
+                  ),
+                ],
+              ),
+            ),
+          );
+        },
+      ),
+    );
+
+    final initialMap = tester.widget<flutter_map.FlutterMap>(
+      find.byType(flutter_map.FlutterMap).first,
+    );
+    final initialCenter = initialMap.mapController!.camera.center;
+    expect(initialCenter.latitude, closeTo(46.0569, 0.0001));
+    expect(initialCenter.longitude, closeTo(14.5058, 0.0001));
+
+    await tester.tap(find.text('Update'));
+    await tester.pump();
+
+    final updatedMap = tester.widget<flutter_map.FlutterMap>(
+      find.byType(flutter_map.FlutterMap).first,
+    );
+    final updatedCenter = updatedMap.mapController!.camera.center;
+    expect(updatedCenter.latitude, closeTo(46.1000, 0.0001));
+    expect(updatedCenter.longitude, closeTo(14.6000, 0.0001));
+  });
+
   testWidgets('renders generic percentage separately from UV for weather payload', (tester) async {
     tester.view.physicalSize = const Size(1600, 2600);
     tester.view.devicePixelRatio = 1.0;
@@ -415,8 +538,11 @@ void main() {
       ),
     );
 
+    final scaffoldKey = GlobalKey<ScaffoldMessengerState>();
+
     await tester.pumpWidget(
       MaterialApp(
+        scaffoldMessengerKey: scaffoldKey,
         localizationsDelegates: AppLocalizations.localizationsDelegates,
         supportedLocales: AppLocalizations.supportedLocales,
         home: Scaffold(
@@ -431,15 +557,43 @@ void main() {
     );
 
     await tester.tap(find.byIcon(Icons.more_vert));
-    await tester.pumpAndSettle();
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 300));
 
     expect(find.text('Copy raw response'), findsOneWidget);
 
+    // Capture clipboard writes via the test platform channel mock.
+    String? clipboardText;
+    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
+      SystemChannels.platform,
+      (MethodCall call) async {
+        if (call.method == 'Clipboard.setData') {
+          final args = call.arguments as Map<dynamic, dynamic>;
+          clipboardText = args['text'] as String?;
+        }
+        if (call.method == 'Clipboard.getData') {
+          return <String, dynamic>{'text': clipboardText};
+        }
+        return null;
+      },
+    );
+    addTearDown(() {
+      tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
+        SystemChannels.platform,
+        null,
+      );
+    });
+
     await tester.tap(find.text('Copy raw response'));
     await tester.pump();
+    await tester.pump(const Duration(milliseconds: 300));
 
-    final clipboardData = await Clipboard.getData(Clipboard.kTextPlain);
-    expect(clipboardData?.text, '01 67 00 d7');
+    expect(clipboardText, '01 67 00 d7');
     expect(find.text('Raw response copied'), findsOneWidget);
+
+    // Clear the SnackBar to prevent its timer from blocking teardown.
+    scaffoldKey.currentState?.clearSnackBars();
+    await tester.pump(const Duration(seconds: 5));
+    await tester.pump(const Duration(seconds: 5));
   });
 }

test/widgets/traffic_stats_reporting_section_test.dart

@@ -0,0 +1,94 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:meshcore_sar_app/services/traffic_stats_reporting_service.dart';
+import 'package:meshcore_sar_app/widgets/settings/traffic_stats_reporting_section.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  final launchedUrls = <String>[];
+
+  setUp(() {
+    launchedUrls.clear();
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(
+          const MethodChannel('plugins.flutter.io/url_launcher'),
+          (call) async {
+            switch (call.method) {
+              case 'canLaunch':
+                return true;
+              case 'launch':
+                final arguments = Map<dynamic, dynamic>.from(
+                  call.arguments as Map<dynamic, dynamic>,
+                );
+                launchedUrls.add(arguments['url'] as String);
+                return true;
+            }
+            return null;
+          },
+        );
+  });
+
+  tearDown(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(
+          const MethodChannel('plugins.flutter.io/url_launcher'),
+          null,
+        );
+  });
+
+  testWidgets('starts enabled by default and can be disabled', (
+    tester,
+  ) async {
+    SharedPreferences.setMockInitialValues({});
+    final service = TrafficStatsReportingService(
+      client: MockClient((request) async => http.Response('{}', 200)),
+      now: () => DateTime.utc(2026, 4, 3, 10, 6),
+      appVersionProvider: () async => '2026.0402.1+44',
+    );
+    await service.initialize(
+      deviceKey6Provider: () => 'a1b2c3d4e5f6',
+    );
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ListenableBuilder(
+            listenable: service,
+            builder: (context, child) => TrafficStatsReportingSection(
+              service: service,
+            ),
+          ),
+        ),
+      ),
+    );
+
+    expect(find.text('Anonymous RX stats reporting'), findsOneWidget);
+    expect(
+      find.text(
+        'Upload RX live-traffic packet type and path mode totals to the fixed Cloudflare worker every 5 minutes.',
+      ),
+      findsOneWidget,
+    );
+    expect(find.text('Reporting interval'), findsNothing);
+    expect(service.isEnabled, isTrue);
+
+    await tester.tap(find.byType(Switch));
+    await tester.pumpAndSettle();
+
+    expect(service.isEnabled, isFalse);
+    expect(service.intervalMinutes, 5);
+
+    await tester.tap(find.widgetWithText(TextButton, 'View public stats'));
+    await tester.pump();
+
+    expect(launchedUrls, ['https://mcstats.dz0ny.dev']);
+
+    service.dispose();
+  });
+}

worker/README.md

@@ -0,0 +1,29 @@
+# MeshCore SAR Stats Worker
+
+This worker follows the same split as `/Users/dz0ny/site-vendorvigilance`:
+
+- Astro builds the dashboard UI into `dist`
+- a small Cloudflare Worker handles `/api/*` before assets are served
+
+## Layout
+
+- `src/pages/index.astro` - dashboard shell
+- `worker/index.ts` - Cloudflare Worker entrypoint
+- `worker/stats.ts` - D1 queries, payload validation, and aggregation helpers
+- `public/.assetsignore` - keeps Astro's private `_worker.js` bundle out of public asset uploads
+- `schema.sql` - D1 schema
+
+## Setup
+
+1. Install dependencies with `bun install`.
+2. Create a D1 database with `bunx wrangler d1 create meshcore_sar_rx_stats`.
+3. Apply the schema with `bunx wrangler d1 execute meshcore_sar_rx_stats --remote --file=./schema.sql`.
+4. Add the real D1 binding id to `wrangler.toml` when deploying.
+5. Build the dashboard with `bun run build`.
+6. Run checks with `bun run check`, `bun run test`, and `bun run typecheck`.
+
+## Routes
+
+- `GET /` - static Astro dashboard
+- `GET /api/dashboard?window=24h|7d|30d` - aggregated dashboard JSON
+- `POST /api/ingest` - anonymous RX stats ingest

worker/astro.config.mjs

@@ -0,0 +1,30 @@
+import { defineConfig } from "astro/config";
+import cloudflare from "@astrojs/cloudflare";
+import react from "@astrojs/react";
+import tailwindcss from "@tailwindcss/vite";
+
+export default defineConfig({
+  imageService: "compile",
+  integrations: [react()],
+  vite: {
+    cacheDir: ".astro/vite",
+    plugins: [tailwindcss()],
+    resolve: {
+      alias: {
+        "@": "/src",
+      },
+    },
+  },
+  build: {
+    concurrency: 4,
+  },
+  server: {
+    port: 4321,
+    host: "0.0.0.0",
+    allowedHosts: true,
+  },
+  devToolbar: {
+    enabled: false,
+  },
+  adapter: cloudflare(),
+});

worker/package.json

@@ -0,0 +1,41 @@
+{
+  "name": "meshcore-sar-stats",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "packageManager": "bun@1.3.8",
+  "scripts": {
+    "dev": "astro dev --host 0.0.0.0",
+    "build": "astro build",
+    "check": "astro check",
+    "test": "bun test",
+    "typecheck": "tsc --noEmit",
+    "deploy": "wrangler deploy"
+  },
+  "dependencies": {
+    "@astrojs/check": "^0.9.6",
+    "@astrojs/cloudflare": "^12.6.12",
+    "@astrojs/react": "^4.4.2",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-tabs": "^1.1.13",
+    "@tailwindcss/vite": "^4.1.18",
+    "@types/leaflet": "^1.9.21",
+    "astro": "^5.17.1",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "leaflet": "^1.9.4",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0",
+    "react-leaflet": "^5.0.0",
+    "tailwind-merge": "^3.4.0",
+    "tailwindcss": "^4.1.18"
+  },
+  "devDependencies": {
+    "@cloudflare/workers-types": "^4.20260403.1",
+    "@types/bun": "^1.3.11",
+    "@types/react": "^19.2.2",
+    "@types/react-dom": "^19.2.2",
+    "typescript": "^5.9.3",
+    "wrangler": "^4.80.0"
+  }
+}

worker/public/.assetsignore

@@ -0,0 +1,2 @@
+_worker.js
+_routes.json

worker/schema.sql

@@ -0,0 +1,42 @@
+CREATE TABLE IF NOT EXISTS reports (
+  report_id TEXT PRIMARY KEY,
+  device_key6 TEXT NOT NULL,
+  window_start TEXT NOT NULL,
+  window_end TEXT NOT NULL,
+  received_at TEXT NOT NULL,
+  app_version TEXT,
+  cf_country TEXT,
+  cf_region TEXT,
+  cf_city TEXT,
+  cf_latitude REAL,
+  cf_longitude REAL,
+  cf_colo TEXT,
+  pt_00 INTEGER NOT NULL DEFAULT 0,
+  pt_01 INTEGER NOT NULL DEFAULT 0,
+  pt_02 INTEGER NOT NULL DEFAULT 0,
+  pt_03 INTEGER NOT NULL DEFAULT 0,
+  pt_04 INTEGER NOT NULL DEFAULT 0,
+  pt_05 INTEGER NOT NULL DEFAULT 0,
+  pt_06 INTEGER NOT NULL DEFAULT 0,
+  pt_07 INTEGER NOT NULL DEFAULT 0,
+  pt_08 INTEGER NOT NULL DEFAULT 0,
+  pt_09 INTEGER NOT NULL DEFAULT 0,
+  pt_0a INTEGER NOT NULL DEFAULT 0,
+  pt_0b INTEGER NOT NULL DEFAULT 0,
+  pt_0c INTEGER NOT NULL DEFAULT 0,
+  pt_0d INTEGER NOT NULL DEFAULT 0,
+  pt_0e INTEGER NOT NULL DEFAULT 0,
+  pt_0f INTEGER NOT NULL DEFAULT 0,
+  decode_fail INTEGER NOT NULL DEFAULT 0,
+  path_mode_1b INTEGER NOT NULL DEFAULT 0,
+  path_mode_2b INTEGER NOT NULL DEFAULT 0,
+  path_mode_3b INTEGER NOT NULL DEFAULT 0,
+  path_mode_none INTEGER NOT NULL DEFAULT 0,
+  path_mode_unknown INTEGER NOT NULL DEFAULT 0
+);
+
+CREATE INDEX IF NOT EXISTS idx_reports_device_window_end
+ON reports (device_key6, window_end);
+
+CREATE INDEX IF NOT EXISTS idx_reports_window_end
+ON reports (window_end);

worker/src/components/dashboard/dashboard-shell.tsx

@@ -0,0 +1,904 @@
+import { useEffect, useMemo, useState } from "react";
+
+import { Button } from "@/components/ui/button";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+
+type WindowKey = "24h" | "7d" | "30d";
+
+type PacketTypeEntry = {
+  key: string;
+  label: string;
+  total: number;
+};
+
+type PathModeEntry = {
+  key: string;
+  label: string;
+  total: number;
+};
+
+type ReporterSummary = {
+  key6: string;
+  lastSeen: string;
+  packetTotal: number;
+  country: string;
+  city: string;
+  latitude: number | null;
+  longitude: number | null;
+};
+
+type ChartPoint = {
+  label: string;
+  totalPackets: number;
+  reports: number;
+};
+
+type LocationPoint = {
+  key6: string;
+  city: string;
+  country: string;
+  latitude: number;
+  longitude: number;
+};
+
+type AppVersionEntry = {
+  version: string;
+  reporters: number;
+  packets: number;
+};
+
+type TrafficComposition = {
+  human: number;
+  overhead: number;
+  acks: number;
+};
+
+type MultiHopRatio = {
+  direct: number;
+  multiHop: number;
+};
+
+type CompositionPoint = {
+  label: string;
+  human: number;
+  overhead: number;
+};
+
+type DashboardResponse = {
+  generatedAt: string;
+  filter: {
+    windowKey: WindowKey;
+    label: string;
+    sinceIso: string;
+    bucket: "hour" | "day";
+  };
+  reportCount: number;
+  uniqueDevices: number;
+  decodedPackets: number;
+  decodeFailures: number;
+  packetTypeTotals: PacketTypeEntry[];
+  pathModeTotals: PathModeEntry[];
+  recentReporters: ReporterSummary[];
+  chartPoints: ChartPoint[];
+  locationPoints: LocationPoint[];
+  appVersions: AppVersionEntry[];
+  trafficComposition: TrafficComposition;
+  multiHopRatio: MultiHopRatio;
+  compositionOverTime: CompositionPoint[];
+};
+
+const WINDOW_OPTIONS: Array<{ key: WindowKey; label: string }> = [
+  { key: "24h", label: "24h" },
+  { key: "7d", label: "7 days" },
+  { key: "30d", label: "30 days" },
+];
+
+const PACKET_TYPE_INFO: Record<string, { title: string; summary: string }> = {
+  pt_00: { title: "FLOOD REQUEST", summary: "Encrypted request to a known peer" },
+  pt_01: { title: "FLOOD RESPONSE", summary: "Encrypted reply to a request" },
+  pt_02: { title: "FLOOD TEXT", summary: "Encrypted direct text with timestamp and retry flags" },
+  pt_03: { title: "FLOOD ACK", summary: "4-byte acknowledgement for an earlier message" },
+  pt_04: { title: "FLOOD ADVERTISEMENT", summary: "Signed node identity broadcast" },
+  pt_05: { title: "FLOOD GROUP_TEXT", summary: "Encrypted channel text matched by channel hash" },
+  pt_06: { title: "FLOOD GROUP_DATA", summary: "Encrypted channel data with type and length" },
+  pt_07: { title: "FLOOD ANON_REQUEST", summary: "Request using an ephemeral sender key" },
+  pt_08: { title: "FLOOD RETURNED_PATH", summary: "Return route back to sender, with optional bundled ACK" },
+  pt_09: { title: "FLOOD TRACE_PATH", summary: "Direct trace that records SNR at each hop" },
+  pt_0a: { title: "FLOOD MULTIPART", summary: "Wrapper for one packet in a multipart sequence" },
+  pt_0b: { title: "FLOOD CONTROL", summary: "Discovery or other control data" },
+  pt_0c: { title: "RESERVED 0x0C", summary: "Reserved protocol type" },
+  pt_0d: { title: "RESERVED 0x0D", summary: "Reserved protocol type" },
+  pt_0e: { title: "RESERVED 0x0E", summary: "Reserved protocol type" },
+  pt_0f: { title: "RAW CUSTOM", summary: "Application-defined custom packet" },
+};
+
+const PATH_MODE_ICONS: Record<string, string> = {
+  path_mode_1b: "1B",
+  path_mode_2b: "2B",
+  path_mode_3b: "3B",
+  path_mode_none: "--",
+  path_mode_unknown: "??",
+};
+
+export function DashboardShell() {
+  const [windowKey, setWindowKey] = useState<WindowKey>("24h");
+  const [summary, setSummary] = useState<DashboardResponse | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    let isCancelled = false;
+
+    async function load() {
+      setIsLoading(true);
+      setError(null);
+      try {
+        const response = await fetch(`/api/dashboard?window=${windowKey}`, {
+          headers: { accept: "application/json" },
+        });
+        if (!response.ok) {
+          throw new Error(`Dashboard request failed (${response.status})`);
+        }
+        const nextSummary = (await response.json()) as DashboardResponse;
+        if (!isCancelled) setSummary(nextSummary);
+      } catch (nextError) {
+        if (!isCancelled) {
+          setError(nextError instanceof Error ? nextError.message : String(nextError));
+        }
+      } finally {
+        if (!isCancelled) setIsLoading(false);
+      }
+    }
+
+    void load();
+    return () => { isCancelled = true; };
+  }, [windowKey]);
+
+  const activePacketTypes = useMemo(
+    () => (summary?.packetTypeTotals ?? []).filter((e) => e.total > 0),
+    [summary],
+  );
+  const activePathModes = useMemo(
+    () => (summary?.pathModeTotals ?? []).filter((e) => e.total > 0),
+    [summary],
+  );
+  const totalPackets = useMemo(
+    () => (summary ? summary.decodedPackets + summary.decodeFailures : 0),
+    [summary],
+  );
+  const decodeRate = totalPackets > 0
+    ? ((summary!.decodedPackets / totalPackets) * 100).toFixed(1)
+    : "0";
+  const maxTrend = Math.max(...(summary?.chartPoints ?? []).map((p) => p.totalPackets), 1);
+  const multiHopTotal = (summary?.multiHopRatio.direct ?? 0) + (summary?.multiHopRatio.multiHop ?? 0);
+  const multiHopPct = multiHopTotal > 0
+    ? ((summary!.multiHopRatio.multiHop / multiHopTotal) * 100).toFixed(1)
+    : "0";
+  const comp = summary?.trafficComposition;
+  const compTotal = comp ? comp.human + comp.overhead + comp.acks : 0;
+  const humanPct = compTotal > 0 ? ((comp!.human / compTotal) * 100).toFixed(1) : "0";
+  const nodeCount = summary?.uniqueDevices ?? 0;
+  const avgPerNode = nodeCount > 0 ? Math.round(totalPackets / nodeCount) : 0;
+
+  return (
+    <div className="mx-auto max-w-[1320px] px-5 py-8">
+      <Tabs value={windowKey} onValueChange={(v) => setWindowKey(v as WindowKey)}>
+        {/* Header */}
+        <header className="mb-8 flex flex-wrap items-end justify-between gap-4">
+          <div className="space-y-2">
+            <div className="flex items-center gap-2.5">
+              <img src="/favicon.png" alt="MeshCore SAR" className="h-8 w-8 rounded-lg" />
+              <h1 className="text-2xl font-semibold tracking-tight">MeshCore SAR</h1>
+            </div>
+            <p className="max-w-xl text-sm text-muted-foreground">
+              Aggregated observations from opt-in mesh nodes. Counts reflect what reporting nodes observed, not unique network packets.
+              Ratios and percentages are statistically valid; absolute numbers scale with reporter count.
+            </p>
+          </div>
+          <div className="flex items-center gap-3">
+            <TabsList className="h-9 rounded-full bg-secondary/60 p-1">
+              {WINDOW_OPTIONS.map((o) => (
+                <TabsTrigger key={o.key} value={o.key} className="rounded-full px-4 text-xs">
+                  {o.label}
+                </TabsTrigger>
+              ))}
+            </TabsList>
+            {summary && (
+              <span className="text-xs text-muted-foreground">
+                Updated {formatRelative(summary.generatedAt)}
+              </span>
+            )}
+          </div>
+        </header>
+
+        {error && (
+          <div className="mb-6 flex items-center gap-3 rounded-2xl border border-destructive/20 bg-destructive/10 px-5 py-3 text-sm text-destructive">
+            <span className="flex-1">{error}</span>
+            <Button size="sm" variant="outline" onClick={() => setWindowKey((c) => c)}>Retry</Button>
+          </div>
+        )}
+
+        <TabsContent value={windowKey} className="space-y-6">
+          {/* Key metrics */}
+          <section className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-6">
+            <MetricCard
+              label="Reporting Nodes"
+              value={nodeCount}
+              note="Opt-in nodes in this window"
+            />
+            <MetricCard
+              label="Avg / Node"
+              value={avgPerNode}
+              note={`${totalPackets.toLocaleString()} total obs.`}
+            />
+            <MetricCard
+              label="Decode Rate"
+              value={`${decodeRate}%`}
+              note={`${summary?.decodeFailures ?? 0} failed`}
+            />
+            <MetricCard
+              label="Multi-Hop"
+              value={`${multiHopPct}%`}
+              note="Relayed through mesh"
+            />
+            <MetricCard
+              label="Messages"
+              value={`${humanPct}%`}
+              note="Text + group text"
+            />
+            <MetricCard
+              label="Protocol Types"
+              value={activePacketTypes.length}
+              note="of 16 types observed"
+            />
+          </section>
+
+          {/* Traffic breakdown */}
+          <section className="space-y-4">
+            <Card>
+              <CardHeader>
+                <CardTitle>Traffic Breakdown</CardTitle>
+                <CardDescription>Observed traffic composition across all reporting nodes</CardDescription>
+              </CardHeader>
+              <CardContent className="space-y-5">
+                {comp && compTotal > 0 ? (
+                  <>
+                    <div className="flex h-6 overflow-hidden rounded-full">
+                      <div className="bg-primary" style={{ width: `${(comp.human / compTotal) * 100}%` }} title={`Messages: ${comp.human}`} />
+                      <div className="bg-amber-400" style={{ width: `${(comp.acks / compTotal) * 100}%` }} title={`Acks: ${comp.acks}`} />
+                      <div className="bg-secondary" style={{ width: `${(comp.overhead / compTotal) * 100}%` }} title={`Overhead: ${comp.overhead}`} />
+                    </div>
+                    <div className="grid grid-cols-3 gap-3 text-center">
+                      <div>
+                        <div className="mx-auto mb-1 h-2.5 w-2.5 rounded-full bg-primary" />
+                        <div className="text-lg font-semibold tabular-nums">{comp.human.toLocaleString()}</div>
+                        <div className="text-xs text-muted-foreground">Messages</div>
+                      </div>
+                      <div>
+                        <div className="mx-auto mb-1 h-2.5 w-2.5 rounded-full bg-amber-400" />
+                        <div className="text-lg font-semibold tabular-nums">{comp.acks.toLocaleString()}</div>
+                        <div className="text-xs text-muted-foreground">Acks</div>
+                      </div>
+                      <div>
+                        <div className="mx-auto mb-1 h-2.5 w-2.5 rounded-full bg-secondary" />
+                        <div className="text-lg font-semibold tabular-nums">{comp.overhead.toLocaleString()}</div>
+                        <div className="text-xs text-muted-foreground">Overhead</div>
+                      </div>
+                    </div>
+                  </>
+                ) : (
+                  <EmptyState label="No traffic data yet." />
+                )}
+              </CardContent>
+            </Card>
+
+            <Card>
+              <CardHeader>
+                <CardTitle>Messages vs Protocol Overhead</CardTitle>
+                <CardDescription>
+                  Human messages (text + group text) compared to protocol overhead (acks, advertisements, routing, control) over time.
+                </CardDescription>
+              </CardHeader>
+              <CardContent>
+                {summary?.compositionOverTime.length ? (
+                  <CompositionChart points={summary.compositionOverTime} />
+                ) : (
+                  <EmptyState label="No composition data yet." />
+                )}
+              </CardContent>
+            </Card>
+          </section>
+
+          {/* Protocol breakdown */}
+          <section className="space-y-4">
+            <Card>
+              <CardHeader>
+                <CardTitle>Protocol Packet Types</CardTitle>
+                <CardDescription>
+                  MeshCore protocol uses 16 packet type codes (0x00 - 0x0F).
+                  Showing types with traffic in this window.
+                </CardDescription>
+              </CardHeader>
+              <CardContent>
+                {activePacketTypes.length ? (
+                  <div className="grid gap-2 sm:grid-cols-2">
+                    {activePacketTypes.map((entry) => {
+                      const pct = totalPackets > 0 ? ((entry.total / totalPackets) * 100).toFixed(1) : "0";
+                      const info = PACKET_TYPE_INFO[entry.key];
+                      return (
+                        <div key={entry.key} className="flex gap-3 rounded-xl border border-border/50 bg-secondary/30 p-3">
+                          <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-lg bg-primary/10 text-xs font-mono font-semibold text-primary">
+                            {entry.key.replace("pt_", "0x").toUpperCase()}
+                          </div>
+                          <div className="min-w-0 flex-1">
+                            <div className="flex items-baseline justify-between gap-2">
+                              <span className="text-sm font-medium">{entry.label}</span>
+                              <span className="shrink-0 text-xs text-muted-foreground">{pct}%</span>
+                            </div>
+                            <div className="mt-0.5 font-mono text-[0.65rem] text-muted-foreground/70">
+                              {info?.title ?? entry.key}
+                            </div>
+                            <p className="mt-0.5 text-xs text-muted-foreground">
+                              {info?.summary ?? ""}
+                            </p>
+                            <div className="mt-1.5 flex items-center gap-2">
+                              <div className="h-1.5 flex-1 overflow-hidden rounded-full bg-secondary">
+                                <div
+                                  className="h-full rounded-full bg-primary/70"
+                                  style={{ width: `${pct}%` }}
+                                />
+                              </div>
+                              <span className="text-xs font-semibold tabular-nums">{entry.total.toLocaleString()} obs.</span>
+                            </div>
+                          </div>
+                        </div>
+                      );
+                    })}
+                  </div>
+                ) : (
+                  <EmptyState label="No packet data yet." />
+                )}
+              </CardContent>
+            </Card>
+
+            <Card>
+              <CardHeader>
+                <CardTitle>Path Routing Modes</CardTitle>
+                <CardDescription>
+                  Path hash byte length determines routing precision.
+                  Longer hashes allow more specific multi-hop paths.
+                </CardDescription>
+              </CardHeader>
+              <CardContent>
+                {activePathModes.length ? (
+                  <div className="grid grid-cols-2 gap-3 sm:grid-cols-5">
+                    {activePathModes.map((entry) => {
+                      const pct = totalPackets > 0 ? ((entry.total / totalPackets) * 100).toFixed(1) : "0";
+                      return (
+                        <div key={entry.key} className="rounded-xl border border-border/50 bg-secondary/30 p-4 text-center">
+                          <div className="mx-auto mb-2 flex h-10 w-10 items-center justify-center rounded-full bg-primary/10 text-sm font-bold text-primary">
+                            {PATH_MODE_ICONS[entry.key] ?? "?"}
+                          </div>
+                          <div className="text-lg font-semibold tabular-nums">{entry.total.toLocaleString()}</div>
+                          <div className="mt-0.5 text-xs text-muted-foreground">{entry.label}</div>
+                          <div className="mt-1 text-xs text-muted-foreground">{pct}%</div>
+                        </div>
+                      );
+                    })}
+                  </div>
+                ) : (
+                  <EmptyState label="No path mode samples." />
+                )}
+              </CardContent>
+            </Card>
+          </section>
+
+          {/* Map + Traffic trend */}
+          <section className="space-y-4">
+            <Card>
+              <CardHeader>
+                <CardTitle>Reporter Locations</CardTitle>
+                <CardDescription>
+                  Approximate locations from Cloudflare edge nodes, not device GPS.
+                </CardDescription>
+              </CardHeader>
+              <CardContent>
+                <ReporterMap locations={summary?.locationPoints ?? []} />
+              </CardContent>
+            </Card>
+
+            <Card>
+              <CardHeader>
+                <CardTitle>Observations Over Time</CardTitle>
+                <CardDescription>
+                  Per-node average observations per {summary?.filter.bucket ?? "time"} bucket.
+                  Normalizing by reporter count removes the bias of more nodes = higher numbers.
+                </CardDescription>
+              </CardHeader>
+              <CardContent>
+                {isLoading && !summary ? (
+                  <EmptyState label="Loading..." />
+                ) : summary?.chartPoints.length ? (
+                  <TrafficChart points={summary.chartPoints} maxValue={maxTrend} />
+                ) : (
+                  <EmptyState label="No data for this window." />
+                )}
+              </CardContent>
+            </Card>
+          </section>
+
+          {/* App versions */}
+          <section>
+            <Card>
+              <CardHeader>
+                <CardTitle>App Versions</CardTitle>
+                <CardDescription>Distribution of reporting app versions by node count and observations</CardDescription>
+              </CardHeader>
+              <CardContent>
+                {summary?.appVersions.length ? (
+                  <div className="space-y-3">
+                    {summary.appVersions.map((entry) => {
+                      const maxPkts = summary.appVersions[0].packets;
+                      return (
+                        <div key={entry.version} className="space-y-1.5">
+                          <div className="flex items-baseline justify-between gap-3 text-sm">
+                            <span className="font-mono font-medium">{entry.version}</span>
+                            <span className="text-xs text-muted-foreground">
+                              {entry.reporters} {entry.reporters === 1 ? "node" : "nodes"} / {entry.packets.toLocaleString()} obs.
+                            </span>
+                          </div>
+                          <div className="h-2 overflow-hidden rounded-full bg-secondary">
+                            <div
+                              className="h-full rounded-full bg-primary/70"
+                              style={{ width: `${(entry.packets / maxPkts) * 100}%` }}
+                            />
+                          </div>
+                        </div>
+                      );
+                    })}
+                  </div>
+                ) : (
+                  <EmptyState label="No version data yet." />
+                )}
+              </CardContent>
+            </Card>
+          </section>
+        </TabsContent>
+      </Tabs>
+    </div>
+  );
+}
+
+// --- Composition stacked area chart ---
+
+function CompositionChart({ points }: { points: CompositionPoint[] }) {
+  const [hover, setHover] = useState<number | null>(null);
+  const count = points.length;
+  if (count === 0) return null;
+
+  const maxVal = Math.max(...points.map((p) => p.human + p.overhead), 1);
+  const innerW = 100;
+  const innerH = 188;
+  const pad = { top: 16, right: 16, bottom: 32, left: 48 };
+
+  const xs = points.map((_, i) => i / Math.max(count - 1, 1));
+
+  // stacked: overhead on bottom, human on top
+  const overheadYs = points.map((p) => 1 - p.overhead / maxVal);
+  const totalYs = points.map((p) => 1 - (p.overhead + p.human) / maxVal);
+
+  const overheadArea = buildAreaPath(xs, overheadYs, innerW, innerH);
+  const humanArea = buildStackedAreaPath(xs, totalYs, overheadYs, innerW, innerH);
+
+  const labelStep = Math.max(1, Math.floor(count / 6));
+  const gridLines = niceGridLines(maxVal, 3);
+
+  return (
+    <div className="relative select-none">
+      <svg
+        viewBox={`${-pad.left} ${-pad.top} ${innerW + pad.left + pad.right} ${innerH + pad.top + pad.bottom}`}
+        className="h-auto max-h-[280px] w-full"
+        preserveAspectRatio="xMidYMid meet"
+        onMouseLeave={() => setHover(null)}
+      >
+        <defs>
+          <linearGradient id="humanFill" x1="0" y1="0" x2="0" y2="1">
+            <stop offset="0%" stopColor="hsl(var(--chart-primary))" stopOpacity={0.5} />
+            <stop offset="100%" stopColor="hsl(var(--chart-primary))" stopOpacity={0.1} />
+          </linearGradient>
+          <linearGradient id="overheadFill" x1="0" y1="0" x2="0" y2="1">
+            <stop offset="0%" stopColor="hsl(var(--chart-secondary))" stopOpacity={0.5} />
+            <stop offset="100%" stopColor="hsl(var(--chart-secondary))" stopOpacity={0.1} />
+          </linearGradient>
+        </defs>
+
+        {gridLines.map((val) => {
+          const y = (1 - val / maxVal) * innerH;
+          return (
+            <g key={val}>
+              <line x1={0} y1={y} x2={innerW} y2={y} stroke="hsl(var(--chart-grid))" strokeWidth={0.3} />
+              <text x={-6} y={y} textAnchor="end" dominantBaseline="middle" fill="hsl(var(--chart-label))" fontSize={3.2} fontFamily="var(--font-sans)">
+                {formatCompact(val)}
+              </text>
+            </g>
+          );
+        })}
+        <line x1={0} y1={innerH} x2={innerW} y2={innerH} stroke="hsl(var(--chart-grid))" strokeWidth={0.4} />
+
+        <path d={overheadArea} fill="url(#overheadFill)" />
+        <path d={humanArea} fill="url(#humanFill)" />
+
+        {/* X labels */}
+        {points.map((p, i) => (i % labelStep === 0 || i === count - 1) ? (
+          <text key={i} x={xs[i] * innerW} y={innerH + 10} textAnchor="middle" fill="hsl(var(--chart-label))" fontSize={2.8} fontFamily="var(--font-sans)">
+            {p.label.slice(5)}
+          </text>
+        ) : null)}
+
+        {/* hover zones */}
+        {points.map((point, i) => (
+          <rect
+            key={point.label}
+            x={xs[i] * innerW - innerW / count / 2}
+            y={0}
+            width={innerW / count}
+            height={innerH}
+            fill="transparent"
+            onMouseEnter={() => setHover(i)}
+          />
+        ))}
+
+        {hover !== null && (
+          <line x1={xs[hover] * innerW} y1={0} x2={xs[hover] * innerW} y2={innerH} stroke="hsl(var(--chart-primary))" strokeWidth={0.3} strokeDasharray="1.5 1" />
+        )}
+      </svg>
+
+      {hover !== null && (
+        <div
+          className="pointer-events-none absolute -top-2 z-10 -translate-x-1/2 rounded-lg border border-border/50 bg-card px-3 py-1.5 text-xs shadow-lg"
+          style={{ left: `${(pad.left + xs[hover] * innerW) / (innerW + pad.left + pad.right) * 100}%` }}
+        >
+          <div className="font-semibold">{points[hover].label}</div>
+          <div className="flex items-center gap-1.5"><span className="inline-block h-2 w-2 rounded-full bg-primary" /> Messages: {points[hover].human.toLocaleString()}</div>
+          <div className="flex items-center gap-1.5"><span className="inline-block h-2 w-2 rounded-full bg-secondary" /> Overhead: {points[hover].overhead.toLocaleString()}</div>
+        </div>
+      )}
+
+      <div className="mt-2 flex items-center justify-center gap-4 text-xs text-muted-foreground">
+        <span className="flex items-center gap-1.5"><span className="inline-block h-2.5 w-2.5 rounded-full bg-primary/60" /> Messages</span>
+        <span className="flex items-center gap-1.5"><span className="inline-block h-2.5 w-2.5 rounded-full bg-secondary/70" /> Overhead</span>
+      </div>
+    </div>
+  );
+}
+
+function buildAreaPath(xs: number[], ys: number[], w: number, h: number): string {
+  const line = xs.map((x, i) => `${i === 0 ? "M" : "L"}${x * w},${ys[i] * h}`).join(" ");
+  return `${line} L${xs[xs.length - 1] * w},${h} L0,${h} Z`;
+}
+
+function buildStackedAreaPath(xs: number[], topYs: number[], bottomYs: number[], w: number, h: number): string {
+  const top = xs.map((x, i) => `${i === 0 ? "M" : "L"}${x * w},${topYs[i] * h}`).join(" ");
+  const bottom = [...xs].reverse().map((x, i) => `L${x * w},${bottomYs[xs.length - 1 - i] * h}`).join(" ");
+  return `${top} ${bottom} Z`;
+}
+
+// --- Traffic trend chart ---
+
+const CHART_H = 240;
+const CHART_PAD = { top: 20, right: 16, bottom: 32, left: 48 };
+
+function TrafficChart({ points, maxValue: _rawMax }: { points: ChartPoint[]; maxValue: number }) {
+  const [hover, setHover] = useState<number | null>(null);
+  const count = points.length;
+  if (count === 0) return null;
+
+  // Normalize: per-node average per bucket
+  const normalized = points.map((p) => ({
+    ...p,
+    perNode: p.reports > 0 ? Math.round(p.totalPackets / p.reports) : 0,
+  }));
+  const maxValue = Math.max(...normalized.map((p) => p.perNode), 1);
+
+  const innerW = 100;
+  const innerH = CHART_H - CHART_PAD.top - CHART_PAD.bottom;
+
+  const peakIdx = normalized.reduce((best, p, i) => (p.perNode > normalized[best].perNode ? i : best), 0);
+
+  const gridLines = niceGridLines(maxValue, 4);
+
+  const xs = normalized.map((_, i) => i / Math.max(count - 1, 1));
+  const ys = normalized.map((p) => 1 - p.perNode / maxValue);
+
+  const linePath = xs.map((x, i) => `${i === 0 ? "M" : "L"}${x * innerW},${ys[i] * innerH}`).join(" ");
+  const areaPath = `${linePath} L${xs[xs.length - 1] * innerW},${innerH} L0,${innerH} Z`;
+
+  // X-axis labels: show ~6 evenly spaced
+  const labelStep = Math.max(1, Math.floor(count / 6));
+  const xLabels = points
+    .map((p, i) => ({ i, label: p.label.slice(5) }))
+    .filter((_, i) => i % labelStep === 0 || i === count - 1);
+
+  return (
+    <div className="relative select-none">
+      <svg
+        viewBox={`${-CHART_PAD.left} ${-CHART_PAD.top} ${innerW + CHART_PAD.left + CHART_PAD.right} ${CHART_H}`}
+        className="h-auto max-h-[280px] w-full"
+        preserveAspectRatio="xMidYMid meet"
+        onMouseLeave={() => setHover(null)}
+      >
+        <defs>
+          <linearGradient id="areaFill" x1="0" y1="0" x2="0" y2="1">
+            <stop offset="0%" stopColor="hsl(var(--chart-primary))" stopOpacity={0.35} />
+            <stop offset="100%" stopColor="hsl(var(--chart-primary))" stopOpacity={0.03} />
+          </linearGradient>
+          <linearGradient id="lineStroke" x1="0" y1="0" x2="1" y2="0">
+            <stop offset="0%" stopColor="hsl(var(--chart-primary-light))" />
+            <stop offset="100%" stopColor="hsl(var(--chart-primary-dark))" />
+          </linearGradient>
+        </defs>
+
+        {/* Y grid lines */}
+        {gridLines.map((val) => {
+          const y = (1 - val / maxValue) * innerH;
+          return (
+            <g key={val}>
+              <line x1={0} y1={y} x2={innerW} y2={y} stroke="hsl(var(--chart-grid))" strokeWidth={0.3} />
+              <text x={-6} y={y} textAnchor="end" dominantBaseline="middle" fill="hsl(var(--chart-label))" fontSize={3.2} fontFamily="var(--font-sans)">
+                {formatCompact(val)}
+              </text>
+            </g>
+          );
+        })}
+
+        {/* baseline */}
+        <line x1={0} y1={innerH} x2={innerW} y2={innerH} stroke="hsl(var(--chart-grid))" strokeWidth={0.4} />
+
+        {/* area fill */}
+        <path d={areaPath} fill="url(#areaFill)" />
+
+        {/* line */}
+        <path d={linePath} fill="none" stroke="url(#lineStroke)" strokeWidth={0.7} strokeLinecap="round" strokeLinejoin="round" />
+
+        {/* peak dot */}
+        <circle
+          cx={xs[peakIdx] * innerW}
+          cy={ys[peakIdx] * innerH}
+          r={1.5}
+          fill="hsl(var(--chart-primary))"
+          stroke="white"
+          strokeWidth={0.6}
+        />
+
+        {/* peak label */}
+        <text
+          x={xs[peakIdx] * innerW}
+          y={ys[peakIdx] * innerH - 4}
+          textAnchor="middle"
+          fill="hsl(var(--chart-primary-accent))"
+          fontSize={3}
+          fontWeight={600}
+          fontFamily="var(--font-sans)"
+        >
+          {normalized[peakIdx].perNode.toLocaleString()}
+        </text>
+
+        {/* X-axis labels */}
+        {xLabels.map(({ i, label }) => (
+          <text
+            key={i}
+            x={xs[i] * innerW}
+            y={innerH + 10}
+            textAnchor="middle"
+            fill="hsl(var(--chart-label))"
+            fontSize={2.8}
+            fontFamily="var(--font-sans)"
+          >
+            {label}
+          </text>
+        ))}
+
+        {/* invisible hover zones */}
+        {points.map((point, i) => {
+          const sliceW = innerW / count;
+          return (
+            <rect
+              key={point.label}
+              x={xs[i] * innerW - sliceW / 2}
+              y={0}
+              width={sliceW}
+              height={innerH}
+              fill="transparent"
+              onMouseEnter={() => setHover(i)}
+            />
+          );
+        })}
+
+        {/* hover indicator */}
+        {hover !== null && (
+          <>
+            <line
+              x1={xs[hover] * innerW}
+              y1={0}
+              x2={xs[hover] * innerW}
+              y2={innerH}
+              stroke="hsl(var(--chart-primary))"
+              strokeWidth={0.3}
+              strokeDasharray="1.5 1"
+            />
+            <circle
+              cx={xs[hover] * innerW}
+              cy={ys[hover] * innerH}
+              r={1.2}
+              fill="white"
+              stroke="hsl(var(--chart-primary))"
+              strokeWidth={0.6}
+            />
+          </>
+        )}
+      </svg>
+
+      {/* hover tooltip */}
+      {hover !== null && (
+        <div
+          className="pointer-events-none absolute -top-2 z-10 -translate-x-1/2 rounded-lg border border-border/50 bg-card px-3 py-1.5 text-xs shadow-lg"
+          style={{
+            left: `${(CHART_PAD.left + xs[hover] * innerW) / (innerW + CHART_PAD.left + CHART_PAD.right) * 100}%`,
+          }}
+        >
+          <div className="font-semibold tabular-nums">{normalized[hover].perNode.toLocaleString()} avg/node</div>
+          <div className="text-muted-foreground">{normalized[hover].totalPackets.toLocaleString()} total from {normalized[hover].reports} {normalized[hover].reports === 1 ? "node" : "nodes"}</div>
+          <div className="text-muted-foreground">{normalized[hover].label}</div>
+        </div>
+      )}
+    </div>
+  );
+}
+
+function niceGridLines(max: number, count: number): number[] {
+  if (max <= 0) return [0];
+  const rough = max / count;
+  const magnitude = 10 ** Math.floor(Math.log10(rough));
+  const residual = rough / magnitude;
+  const nice = residual <= 1.5 ? 1 : residual <= 3 ? 2 : residual <= 7 ? 5 : 10;
+  const step = nice * magnitude;
+  const lines: number[] = [];
+  for (let v = step; v <= max; v += step) {
+    lines.push(Math.round(v));
+  }
+  return lines;
+}
+
+function formatCompact(n: number): string {
+  if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)}M`;
+  if (n >= 1_000) return `${(n / 1_000).toFixed(n >= 10_000 ? 0 : 1)}K`;
+  return String(n);
+}
+
+function MetricCard({ label, value, note }: { label: string; value: number | string; note: string }) {
+  return (
+    <Card>
+      <CardHeader className="gap-1.5">
+        <CardDescription className="text-xs uppercase tracking-wider">{label}</CardDescription>
+        <CardTitle className="text-3xl tabular-nums">{typeof value === "number" ? value.toLocaleString() : value}</CardTitle>
+        <CardDescription>{note}</CardDescription>
+      </CardHeader>
+    </Card>
+  );
+}
+
+function EmptyState({ label }: { label: string }) {
+  return (
+    <div className="rounded-2xl border border-dashed border-border bg-secondary/20 px-4 py-8 text-center text-sm text-muted-foreground">
+      {label}
+    </div>
+  );
+}
+
+function ReporterMap({ locations }: { locations: LocationPoint[] }) {
+  const [mounted, setMounted] = useState(false);
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
+
+  if (!mounted || typeof window === "undefined") {
+    return (
+      <div className="flex min-h-[360px] items-center justify-center rounded-xl bg-secondary/30 text-sm text-muted-foreground">
+        Loading map...
+      </div>
+    );
+  }
+
+  return <LeafletMap locations={locations} />;
+}
+
+function LeafletMap({ locations }: { locations: LocationPoint[] }) {
+  const [leaflet, setLeaflet] = useState<{
+    MapContainer: typeof import("react-leaflet").MapContainer;
+    TileLayer: typeof import("react-leaflet").TileLayer;
+    CircleMarker: typeof import("react-leaflet").CircleMarker;
+    Tooltip: typeof import("react-leaflet").Tooltip;
+    L: typeof import("leaflet");
+  } | null>(null);
+
+  useEffect(() => {
+    Promise.all([
+      import("react-leaflet"),
+      import("leaflet"),
+    ]).then(([rl, L]) => {
+      setLeaflet({
+        MapContainer: rl.MapContainer,
+        TileLayer: rl.TileLayer,
+        CircleMarker: rl.CircleMarker,
+        Tooltip: rl.Tooltip,
+        L: L.default ?? L,
+      });
+    });
+  }, []);
+
+  if (!leaflet) {
+    return (
+      <div className="flex min-h-[360px] items-center justify-center rounded-xl bg-secondary/30 text-sm text-muted-foreground">
+        Loading map...
+      </div>
+    );
+  }
+
+  const { MapContainer, TileLayer, CircleMarker, Tooltip } = leaflet;
+
+  const center: [number, number] = locations.length
+    ? [
+        locations.reduce((s, l) => s + l.latitude, 0) / locations.length,
+        locations.reduce((s, l) => s + l.longitude, 0) / locations.length,
+      ]
+    : [46.0, 14.5];
+
+  return (
+    <>
+      <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
+      <div className="overflow-hidden rounded-xl">
+        <MapContainer
+          center={center}
+          zoom={locations.length > 1 ? 4 : 8}
+          scrollWheelZoom={true}
+          style={{ height: 360, width: "100%" }}
+          attributionControl={true}
+        >
+          <TileLayer
+            attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
+            url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
+          />
+          {locations.map((loc) => (
+            <CircleMarker
+              key={`${loc.latitude}-${loc.longitude}-${loc.city}`}
+              center={[loc.latitude, loc.longitude]}
+              radius={8}
+              pathOptions={{
+                color: "hsl(217, 91%, 60%)",
+                fillColor: "hsl(217, 91%, 70%)",
+                fillOpacity: 0.6,
+                weight: 2,
+              }}
+            >
+              <Tooltip>
+                {loc.city}, {loc.country}
+              </Tooltip>
+            </CircleMarker>
+          ))}
+        </MapContainer>
+      </div>
+    </>
+  );
+}
+
+function formatRelative(value: string) {
+  const diffMs = Date.now() - new Date(value).getTime();
+  const diffMin = Math.floor(diffMs / 60000);
+  if (diffMin < 1) return "just now";
+  if (diffMin < 60) return `${diffMin}m ago`;
+  const diffHr = Math.floor(diffMin / 60);
+  if (diffHr < 24) return `${diffHr}h ago`;
+  return `${Math.floor(diffHr / 24)}d ago`;
+}

worker/src/components/ui/badge.tsx

@@ -0,0 +1,31 @@
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+
+const badgeVariants = cva(
+  "inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold transition-colors",
+  {
+    variants: {
+      variant: {
+        default: "border-transparent bg-primary text-primary-foreground",
+        secondary: "border-transparent bg-secondary text-secondary-foreground",
+        destructive: "border-transparent bg-destructive text-destructive-foreground",
+        outline: "text-foreground bg-card/60",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+export interface BadgeProps
+  extends React.HTMLAttributes<HTMLDivElement>,
+    VariantProps<typeof badgeVariants> {}
+
+function Badge({ className, variant, ...props }: BadgeProps) {
+  return <div className={cn(badgeVariants({ variant }), className)} {...props} />;
+}
+
+export { Badge, badgeVariants };

worker/src/components/ui/button.tsx

@@ -0,0 +1,54 @@
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+
+type ButtonProps = React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean;
+  };
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all cursor-pointer disabled:pointer-events-none disabled:opacity-50 outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground hover:bg-primary/90",
+        destructive: "bg-destructive text-destructive-foreground hover:bg-destructive/90",
+        outline: "border bg-card hover:bg-muted",
+        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/90",
+        ghost: "hover:bg-muted",
+      },
+      size: {
+        default: "h-9 px-4 py-2",
+        sm: "h-8 rounded-md px-3",
+        lg: "h-10 rounded-md px-6",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+function Button({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}: ButtonProps) {
+  const Comp = asChild ? Slot : "button";
+
+  return (
+    <Comp
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  );
+}
+
+export { Button, buttonVariants, type ButtonProps };

worker/src/components/ui/card.tsx

@@ -0,0 +1,52 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Card({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card"
+      className={cn(
+        "bg-card/88 text-card-foreground flex flex-col gap-6 rounded-[1.5rem] border border-border/50 py-6 shadow-[0_18px_48px_rgba(16,33,47,0.08)] dark:shadow-[0_18px_48px_rgba(0,0,0,0.3)] backdrop-blur-md",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-header"
+      className={cn("grid auto-rows-min items-start gap-2 px-6", className)}
+      {...props}
+    />
+  );
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn("leading-none font-semibold", className)}
+      {...props}
+    />
+  );
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn("text-muted-foreground text-sm", className)}
+      {...props}
+    />
+  );
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+  return <div data-slot="card-content" className={cn("px-6", className)} {...props} />;
+}
+
+export { Card, CardHeader, CardTitle, CardDescription, CardContent };

worker/src/components/ui/table.tsx

@@ -0,0 +1,64 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+const Table = React.forwardRef<HTMLTableElement, React.HTMLAttributes<HTMLTableElement>>(
+  ({ className, ...props }, ref) => (
+    <div className="relative w-full overflow-auto">
+      <table ref={ref} className={cn("w-full caption-bottom text-sm", className)} {...props} />
+    </div>
+  ),
+);
+Table.displayName = "Table";
+
+const TableHeader = React.forwardRef<
+  HTMLTableSectionElement,
+  React.HTMLAttributes<HTMLTableSectionElement>
+>(({ className, ...props }, ref) => (
+  <thead ref={ref} className={cn("[&_tr]:border-b", className)} {...props} />
+));
+TableHeader.displayName = "TableHeader";
+
+const TableBody = React.forwardRef<
+  HTMLTableSectionElement,
+  React.HTMLAttributes<HTMLTableSectionElement>
+>(({ className, ...props }, ref) => (
+  <tbody ref={ref} className={cn("[&_tr:last-child]:border-0", className)} {...props} />
+));
+TableBody.displayName = "TableBody";
+
+const TableRow = React.forwardRef<HTMLTableRowElement, React.HTMLAttributes<HTMLTableRowElement>>(
+  ({ className, ...props }, ref) => (
+    <tr
+      ref={ref}
+      className={cn(
+        "border-b transition-colors hover:bg-muted/50",
+        className,
+      )}
+      {...props}
+    />
+  ),
+);
+TableRow.displayName = "TableRow";
+
+const TableHead = React.forwardRef<
+  HTMLTableCellElement,
+  React.ThHTMLAttributes<HTMLTableCellElement>
+>(({ className, ...props }, ref) => (
+  <th
+    ref={ref}
+    className={cn("h-12 px-4 text-left align-middle font-medium text-muted-foreground", className)}
+    {...props}
+  />
+));
+TableHead.displayName = "TableHead";
+
+const TableCell = React.forwardRef<
+  HTMLTableCellElement,
+  React.TdHTMLAttributes<HTMLTableCellElement>
+>(({ className, ...props }, ref) => (
+  <td ref={ref} className={cn("p-4 align-middle", className)} {...props} />
+));
+TableCell.displayName = "TableCell";
+
+export { Table, TableHeader, TableBody, TableRow, TableHead, TableCell };

worker/src/components/ui/tabs.tsx

@@ -0,0 +1,50 @@
+import * as React from "react";
+import * as TabsPrimitive from "@radix-ui/react-tabs";
+
+import { cn } from "@/lib/utils";
+
+const Tabs = TabsPrimitive.Root;
+
+const TabsList = React.forwardRef<
+  React.ComponentRef<typeof TabsPrimitive.List>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.List>
+>(({ className, ...props }, ref) => (
+  <TabsPrimitive.List
+    ref={ref}
+    className={cn(
+      "inline-flex h-11 items-center justify-center rounded-full border border-white/70 bg-white/60 p-1 text-muted-foreground shadow-sm backdrop-blur",
+      className,
+    )}
+    {...props}
+  />
+));
+TabsList.displayName = TabsPrimitive.List.displayName;
+
+const TabsTrigger = React.forwardRef<
+  React.ComponentRef<typeof TabsPrimitive.Trigger>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Trigger>
+>(({ className, ...props }, ref) => (
+  <TabsPrimitive.Trigger
+    ref={ref}
+    className={cn(
+      "inline-flex items-center justify-center whitespace-nowrap rounded-full px-4 py-2 text-sm font-medium transition-all focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 data-[state=active]:bg-primary data-[state=active]:text-primary-foreground data-[state=active]:shadow-sm",
+      className,
+    )}
+    {...props}
+  />
+));
+TabsTrigger.displayName = TabsPrimitive.Trigger.displayName;
+
+const TabsContent = React.forwardRef<
+  React.ComponentRef<typeof TabsPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Content>
+>(({ className, ...props }, ref) => (
+  <TabsPrimitive.Content
+    ref={ref}
+    className={cn("mt-6 focus-visible:outline-none", className)}
+    {...props}
+  />
+));
+TabsContent.displayName = TabsPrimitive.Content.displayName;
+
+export { Tabs, TabsList, TabsTrigger, TabsContent };

worker/src/index.css

@@ -0,0 +1,99 @@
+@import "tailwindcss";
+
+@theme {
+  --font-sans: "IBM Plex Sans", "Avenir Next", "Segoe UI", sans-serif;
+  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;
+
+  --color-border: hsl(var(--border));
+  --color-input: hsl(var(--input));
+  --color-ring: hsl(var(--ring));
+  --color-background: hsl(var(--background));
+  --color-foreground: hsl(var(--foreground));
+  --color-primary: hsl(var(--primary));
+  --color-primary-foreground: hsl(var(--primary-foreground));
+  --color-secondary: hsl(var(--secondary));
+  --color-secondary-foreground: hsl(var(--secondary-foreground));
+  --color-muted: hsl(var(--muted));
+  --color-muted-foreground: hsl(var(--muted-foreground));
+  --color-accent: hsl(var(--accent));
+  --color-accent-foreground: hsl(var(--accent-foreground));
+  --color-destructive: hsl(var(--destructive));
+  --color-destructive-foreground: hsl(var(--destructive-foreground));
+  --color-card: hsl(var(--card));
+  --color-card-foreground: hsl(var(--card-foreground));
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+}
+
+@layer base {
+  :root {
+    --background: 220 33% 97%;
+    --foreground: 222 47% 11%;
+    --card: 0 0% 100%;
+    --card-foreground: 222 47% 11%;
+    --primary: 217 91% 60%;
+    --primary-foreground: 0 0% 100%;
+    --secondary: 220 50% 93%;
+    --secondary-foreground: 222 47% 11%;
+    --muted: 220 26% 93%;
+    --muted-foreground: 220 13% 46%;
+    --accent: 217 91% 60%;
+    --accent-foreground: 0 0% 100%;
+    --destructive: 0 72% 51%;
+    --destructive-foreground: 0 0% 100%;
+    --border: 220 20% 88%;
+    --input: 220 20% 88%;
+    --ring: 217 91% 60%;
+    --radius: 1rem;
+    --chart-grid: 220 20% 88%;
+    --chart-label: 220 13% 46%;
+    --chart-primary: 217 91% 60%;
+    --chart-primary-light: 217 91% 65%;
+    --chart-primary-dark: 217 70% 50%;
+    --chart-primary-accent: 217 91% 45%;
+    --chart-secondary: 206 22% 75%;
+  }
+
+  .dark {
+    --background: 222 47% 8%;
+    --foreground: 220 20% 90%;
+    --card: 222 40% 12%;
+    --card-foreground: 220 20% 90%;
+    --primary: 217 91% 60%;
+    --primary-foreground: 0 0% 100%;
+    --secondary: 220 30% 18%;
+    --secondary-foreground: 220 20% 90%;
+    --muted: 220 20% 16%;
+    --muted-foreground: 220 13% 55%;
+    --accent: 217 91% 60%;
+    --accent-foreground: 0 0% 100%;
+    --destructive: 0 72% 51%;
+    --destructive-foreground: 0 0% 100%;
+    --border: 220 20% 20%;
+    --input: 220 20% 20%;
+    --ring: 217 91% 60%;
+    --chart-grid: 220 20% 22%;
+    --chart-label: 220 13% 50%;
+    --chart-primary: 217 91% 65%;
+    --chart-primary-light: 217 91% 70%;
+    --chart-primary-dark: 217 70% 55%;
+    --chart-primary-accent: 217 91% 55%;
+    --chart-secondary: 220 20% 35%;
+  }
+
+  * {
+    border-color: hsl(var(--border));
+  }
+
+  html {
+    font-family: var(--font-sans);
+    color-scheme: light dark;
+  }
+
+  body {
+    min-height: 100vh;
+    background: hsl(var(--background));
+    color: hsl(var(--foreground));
+  }
+}

worker/src/layouts/BaseLayout.astro

@@ -0,0 +1,28 @@
+---
+interface Props {
+  title?: string;
+}
+
+const { title = "MeshCore SAR RX Stats" } = Astro.props;
+
+import "../index.css";
+---
+
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="icon" type="image/png" href="/favicon.png" />
+    <title>{title}</title>
+  </head>
+  <body>
+    <slot />
+    <script>
+      const mq = window.matchMedia("(prefers-color-scheme: dark)");
+      function apply(e) { document.documentElement.classList.toggle("dark", e.matches); }
+      apply(mq);
+      mq.addEventListener("change", apply);
+    </script>
+  </body>
+</html>

worker/src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}

worker/src/pages/index.astro

@@ -0,0 +1,8 @@
+---
+import BaseLayout from "../layouts/BaseLayout.astro";
+import { DashboardShell } from "@/components/dashboard/dashboard-shell";
+---
+
+<BaseLayout title="MeshCore SAR RX Stats">
+  <DashboardShell client:load />
+</BaseLayout>

worker/test/index.test.ts

@@ -0,0 +1,169 @@
+import { describe, expect, test } from 'bun:test';
+
+import {
+  REPORT_INSERT_SQL,
+  buildWindowFilter,
+  createEmptyCounts,
+  extractCfGeo,
+  loadDashboardSummary,
+  summarizeRows,
+  validateIngestPayload,
+} from '../worker/stats';
+
+describe('validateIngestPayload', () => {
+  test('accepts a complete payload with fixed columns', () => {
+    const counts = createEmptyCounts();
+    counts.pt_04 = 12;
+    counts.path_mode_2b = 4;
+
+    const payload = validateIngestPayload({
+      reportId: 'a1b2c3d4e5f6:2026-04-03T10:00:00.000Z',
+      deviceKey6: 'a1b2c3d4e5f6',
+      windowStart: '2026-04-03T10:00:00.000Z',
+      windowEnd: '2026-04-03T10:05:00.000Z',
+      appVersion: '2026.0402.1+44',
+      counts,
+    });
+
+    expect(payload.counts.pt_04).toBe(12);
+    expect(payload.counts.path_mode_2b).toBe(4);
+  });
+
+  test('rejects missing fixed count keys', () => {
+    expect(() =>
+      validateIngestPayload({
+        reportId: 'a1b2c3d4e5f6:2026-04-03T10:00:00.000Z',
+        deviceKey6: 'a1b2c3d4e5f6',
+        windowStart: '2026-04-03T10:00:00.000Z',
+        windowEnd: '2026-04-03T10:05:00.000Z',
+        appVersion: '2026.0402.1+44',
+        counts: {},
+      }),
+    ).toThrow('counts.pt_00 must be a number.');
+  });
+});
+
+describe('worker helpers', () => {
+  test('uses insert-or-ignore semantics for idempotent reports', () => {
+    expect(REPORT_INSERT_SQL).toContain('INSERT OR IGNORE INTO reports');
+  });
+
+  test('extractCfGeo reads Cloudflare request metadata', () => {
+    const request = new Request('https://example.com/') as Request & {
+      cf?: Record<string, unknown>;
+    };
+    request.cf = {
+      country: 'SI',
+      region: 'Ljubljana',
+      city: 'Ljubljana',
+      latitude: '46.0569',
+      longitude: '14.5058',
+      colo: 'LJU',
+    };
+
+    const geo = extractCfGeo(request);
+
+    expect(geo.country).toBe('SI');
+    expect(geo.latitude).toBe(46.0569);
+    expect(geo.longitude).toBe(14.5058);
+    expect(geo.colo).toBe('LJU');
+  });
+
+  test('summarizeRows aggregates packet and path mode totals', () => {
+    const filter = buildWindowFilter('24h', new Date('2026-04-03T12:00:00.000Z'));
+    const rows = [
+      {
+        ...createEmptyCounts(),
+        report_id: 'a1',
+        device_key6: 'a1b2c3d4e5f6',
+        window_start: '2026-04-03T10:00:00.000Z',
+        window_end: '2026-04-03T10:05:00.000Z',
+        received_at: '2026-04-03T10:05:03.000Z',
+        app_version: '2026.0402.1+44',
+        cf_country: 'SI',
+        cf_region: 'Ljubljana',
+        cf_city: 'Ljubljana',
+        cf_latitude: 46.0569,
+        cf_longitude: 14.5058,
+        cf_colo: 'LJU',
+        pt_04: 12,
+        path_mode_2b: 12,
+      },
+      {
+        ...createEmptyCounts(),
+        report_id: 'a2',
+        device_key6: '001122334455',
+        window_start: '2026-04-03T11:00:00.000Z',
+        window_end: '2026-04-03T11:05:00.000Z',
+        received_at: '2026-04-03T11:05:02.000Z',
+        app_version: '2026.0402.1+44',
+        cf_country: 'DE',
+        cf_region: 'Berlin',
+        cf_city: 'Berlin',
+        cf_latitude: 52.52,
+        cf_longitude: 13.405,
+        cf_colo: 'FRA',
+        pt_05: 3,
+        decode_fail: 1,
+        path_mode_none: 1,
+        path_mode_3b: 2,
+      },
+    ];
+
+    const summary = summarizeRows(rows, filter);
+
+    expect(summary.reportCount).toBe(2);
+    expect(summary.uniqueDevices).toBe(2);
+    expect(summary.decodedPackets).toBe(15);
+    expect(summary.decodeFailures).toBe(1);
+    expect(summary.pathModeTotals[0]?.total).toBe(12);
+    expect(summary.locationPoints).toHaveLength(2);
+  });
+
+  test('loadDashboardSummary reads D1 rows for the selected window', async () => {
+    const rows = [
+      {
+        ...createEmptyCounts(),
+        report_id: 'a1',
+        device_key6: 'a1b2c3d4e5f6',
+        window_start: '2026-04-03T10:00:00.000Z',
+        window_end: '2026-04-03T10:05:00.000Z',
+        received_at: '2026-04-03T10:05:03.000Z',
+        app_version: '2026.0402.1+44',
+        cf_country: 'SI',
+        cf_region: 'Ljubljana',
+        cf_city: 'Ljubljana',
+        cf_latitude: 46.0569,
+        cf_longitude: 14.5058,
+        cf_colo: 'LJU',
+        pt_04: 5,
+      },
+    ];
+
+    const env = {
+      DB: {
+        prepare() {
+          return {
+            bind() {
+              return {
+                async all() {
+                  return { results: rows };
+                },
+              };
+            },
+          };
+        },
+      },
+    } as any;
+
+    const summary = await loadDashboardSummary(
+      env,
+      '24h',
+      new Date('2026-04-03T12:00:00.000Z'),
+    );
+
+    expect(summary.reportCount).toBe(1);
+    expect(summary.packetTypeTotals[0]?.key).toBe('pt_04');
+    expect(summary.packetTypeTotals[0]?.total).toBe(5);
+  });
+});

worker/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "astro/tsconfigs/strict",
+  "include": [
+    ".astro/types.d.ts",
+    "**/*"
+  ],
+  "exclude": [
+    "dist",
+    "node_modules"
+  ],
+  "compilerOptions": {
+    "baseUrl": ".",
+    "jsx": "react-jsx",
+    "jsxImportSource": "react",
+    "paths": {
+      "@/*": ["./src/*"]
+    },
+    "types": ["@cloudflare/workers-types", "bun-types"]
+  }
+}

worker/worker/index.ts

@@ -0,0 +1,124 @@
+import {
+  COUNT_KEYS,
+  REPORT_INSERT_SQL,
+  extractCfGeo,
+  jsonHeaders,
+  loadDashboardSummary,
+  validateIngestPayload,
+  type Env,
+  type IngestPayload,
+} from "./stats";
+
+const ROUTES = {
+  "/api/ingest": handleIngest,
+  "/api/dashboard": handleDashboard,
+} as const;
+
+export default {
+  async fetch(request: Request, env: Env): Promise<Response> {
+    const pathname = new URL(request.url).pathname;
+    const route = Object.entries(ROUTES).find(([prefix]) =>
+      pathname.startsWith(prefix),
+    );
+    if (!route) {
+      return new Response("Not Found", { status: 404 });
+    }
+    try {
+      return await route[1](request, env);
+    } catch (error) {
+      console.error(`Worker route failed for ${pathname}:`, error);
+      return Response.json(
+        { error: "Internal Server Error" },
+        {
+          headers: jsonHeaders,
+          status: 500,
+        },
+      );
+    }
+  },
+};
+
+async function handleIngest(request: Request, env: Env): Promise<Response> {
+  if (request.method !== "POST") {
+    return Response.json(
+      { error: "Method not allowed" },
+      {
+        headers: jsonHeaders,
+        status: 405,
+      },
+    );
+  }
+
+  let payload: IngestPayload;
+  try {
+    payload = validateIngestPayload(await request.json());
+  } catch (error) {
+    return Response.json(
+      { error: error instanceof Error ? error.message : "Invalid payload" },
+      {
+        headers: jsonHeaders,
+        status: 400,
+      },
+    );
+  }
+
+  const geo = extractCfGeo(request);
+  const values = [
+    payload.reportId,
+    payload.deviceKey6,
+    payload.windowStart,
+    payload.windowEnd,
+    new Date().toISOString(),
+    payload.appVersion,
+    geo.country,
+    geo.region,
+    geo.city,
+    geo.latitude,
+    geo.longitude,
+    geo.colo,
+    ...COUNT_KEYS.map((key) => payload.counts[key]),
+  ];
+
+  const result = await env.DB.prepare(REPORT_INSERT_SQL).bind(...values).run();
+  const changes = Number((result.meta as { changes?: number }).changes ?? 0);
+
+  return Response.json(
+    {
+      ok: true,
+      duplicate: changes === 0,
+    },
+    {
+      headers: jsonHeaders,
+    },
+  );
+}
+
+async function handleDashboard(request: Request, env: Env): Promise<Response> {
+  if (request.method !== "GET") {
+    return Response.json(
+      { error: "Method not allowed" },
+      {
+        headers: jsonHeaders,
+        status: 405,
+      },
+    );
+  }
+
+  const url = new URL(request.url);
+  const windowParam = url.searchParams.get("window");
+  const summary = await loadDashboardSummary(env, windowParam);
+  const cacheTtl = windowParam === "7d" || windowParam === "30d" ? 86400 : 60;
+  return Response.json(
+    {
+      generatedAt: new Date().toISOString(),
+      ...summary,
+    },
+    {
+      headers: {
+        ...jsonHeaders,
+        "cache-control": `public, max-age=${cacheTtl}, s-maxage=${cacheTtl}`,
+        "cdn-cache-control": `max-age=${cacheTtl}`,
+      },
+    },
+  );
+}

worker/worker/stats.ts

@@ -0,0 +1,507 @@
+export const PACKET_TYPE_KEYS = [
+  "pt_00",
+  "pt_01",
+  "pt_02",
+  "pt_03",
+  "pt_04",
+  "pt_05",
+  "pt_06",
+  "pt_07",
+  "pt_08",
+  "pt_09",
+  "pt_0a",
+  "pt_0b",
+  "pt_0c",
+  "pt_0d",
+  "pt_0e",
+  "pt_0f",
+] as const;
+
+export const PATH_MODE_KEYS = [
+  "path_mode_1b",
+  "path_mode_2b",
+  "path_mode_3b",
+  "path_mode_none",
+  "path_mode_unknown",
+] as const;
+
+export const COUNT_KEYS = [
+  ...PACKET_TYPE_KEYS,
+  "decode_fail",
+  ...PATH_MODE_KEYS,
+] as const;
+
+const REPORT_COLUMNS = [
+  "report_id",
+  "device_key6",
+  "window_start",
+  "window_end",
+  "received_at",
+  "app_version",
+  "cf_country",
+  "cf_region",
+  "cf_city",
+  "cf_latitude",
+  "cf_longitude",
+  "cf_colo",
+  ...COUNT_KEYS,
+] as const;
+
+const PACKET_TYPE_LABELS: Record<(typeof PACKET_TYPE_KEYS)[number], string> = {
+  pt_00: "Request",
+  pt_01: "Response",
+  pt_02: "Text message",
+  pt_03: "Ack",
+  pt_04: "Advertisement",
+  pt_05: "Group text",
+  pt_06: "Group datagram",
+  pt_07: "Anonymous request",
+  pt_08: "Returned path",
+  pt_09: "Trace path",
+  pt_0a: "Multipart packet",
+  pt_0b: "Control packet",
+  pt_0c: "Reserved 0x0C",
+  pt_0d: "Reserved 0x0D",
+  pt_0e: "Reserved 0x0E",
+  pt_0f: "Custom packet",
+};
+
+const PATH_MODE_LABELS: Record<(typeof PATH_MODE_KEYS)[number], string> = {
+  path_mode_1b: "1-byte path hash",
+  path_mode_2b: "2-byte path hash",
+  path_mode_3b: "3-byte path hash",
+  path_mode_none: "No path bytes",
+  path_mode_unknown: "Unknown path mode",
+};
+
+const WINDOW_OPTIONS = {
+  "24h": {
+    label: "Last 24 hours",
+    durationMs: 24 * 60 * 60 * 1000,
+    bucket: "hour",
+  },
+  "7d": {
+    label: "Last 7 days",
+    durationMs: 7 * 24 * 60 * 60 * 1000,
+    bucket: "day",
+  },
+  "30d": {
+    label: "Last 30 days",
+    durationMs: 30 * 24 * 60 * 60 * 1000,
+    bucket: "day",
+  },
+} as const;
+
+export const jsonHeaders = {
+  "content-type": "application/json; charset=utf-8",
+} as const;
+
+type CountKey = (typeof COUNT_KEYS)[number];
+type PacketTypeKey = (typeof PACKET_TYPE_KEYS)[number];
+type PathModeKey = (typeof PATH_MODE_KEYS)[number];
+type WindowKey = keyof typeof WINDOW_OPTIONS;
+
+export type Counts = Record<CountKey, number>;
+
+export interface Env {
+  DB: D1Database;
+}
+
+export interface IngestPayload {
+  reportId: string;
+  deviceKey6: string;
+  windowStart: string;
+  windowEnd: string;
+  appVersion: string;
+  counts: Counts;
+}
+
+export interface CfGeo {
+  country: string | null;
+  region: string | null;
+  city: string | null;
+  latitude: number | null;
+  longitude: number | null;
+  colo: string | null;
+}
+
+export interface ReportRow extends Counts {
+  report_id: string;
+  device_key6: string;
+  window_start: string;
+  window_end: string;
+  received_at: string;
+  app_version: string | null;
+  cf_country: string | null;
+  cf_region: string | null;
+  cf_city: string | null;
+  cf_latitude: number | null;
+  cf_longitude: number | null;
+  cf_colo: string | null;
+}
+
+export interface WindowFilter {
+  windowKey: WindowKey;
+  label: string;
+  sinceIso: string;
+  bucket: "hour" | "day";
+}
+
+export interface ChartPoint {
+  label: string;
+  totalPackets: number;
+  reports: number;
+}
+
+export interface LocationPoint {
+  key6: string;
+  city: string;
+  country: string;
+  latitude: number;
+  longitude: number;
+}
+
+export interface ReporterSummary {
+  key6: string;
+  lastSeen: string;
+  packetTotal: number;
+  country: string;
+  city: string;
+  latitude: number | null;
+  longitude: number | null;
+}
+
+export interface AppVersionEntry {
+  version: string;
+  reporters: number;
+  packets: number;
+}
+
+export interface TrafficComposition {
+  human: number;
+  overhead: number;
+  acks: number;
+}
+
+export interface MultiHopRatio {
+  direct: number;
+  multiHop: number;
+}
+
+export interface CompositionPoint {
+  label: string;
+  human: number;
+  overhead: number;
+}
+
+export interface DashboardSummary {
+  filter: WindowFilter;
+  reportCount: number;
+  uniqueDevices: number;
+  decodedPackets: number;
+  decodeFailures: number;
+  packetTypeTotals: Array<{ key: PacketTypeKey; label: string; total: number }>;
+  pathModeTotals: Array<{ key: PathModeKey; label: string; total: number }>;
+  recentReporters: ReporterSummary[];
+  chartPoints: ChartPoint[];
+  locationPoints: LocationPoint[];
+  appVersions: AppVersionEntry[];
+  trafficComposition: TrafficComposition;
+  multiHopRatio: MultiHopRatio;
+  compositionOverTime: CompositionPoint[];
+}
+
+export const REPORT_INSERT_SQL = `
+INSERT OR IGNORE INTO reports (
+  ${REPORT_COLUMNS.join(", ")}
+) VALUES (
+  ${REPORT_COLUMNS.map(() => "?").join(", ")}
+)`.trim();
+
+export function createEmptyCounts(): Counts {
+  return Object.fromEntries(
+    COUNT_KEYS.map((key) => [key, 0]),
+  ) as Counts;
+}
+
+export function validateIngestPayload(payload: unknown): IngestPayload {
+  if (typeof payload !== "object" || payload === null) {
+    throw new Error("Body must be a JSON object.");
+  }
+  const record = payload as Record<string, unknown>;
+  const reportId = asTrimmedString(record.reportId, "reportId");
+  const deviceKey6 = asTrimmedString(record.deviceKey6, "deviceKey6");
+  if (!/^[0-9a-f]{12}$/.test(deviceKey6)) {
+    throw new Error("deviceKey6 must be 12 lowercase hex characters.");
+  }
+  const windowStart = asIsoString(record.windowStart, "windowStart");
+  const windowEnd = asIsoString(record.windowEnd, "windowEnd");
+  if (Date.parse(windowEnd) < Date.parse(windowStart)) {
+    throw new Error("windowEnd must not be earlier than windowStart.");
+  }
+  const appVersion = asTrimmedString(record.appVersion, "appVersion");
+  const counts = validateCounts(record.counts);
+  return {
+    reportId,
+    deviceKey6,
+    windowStart,
+    windowEnd,
+    appVersion,
+    counts,
+  };
+}
+
+export function extractCfGeo(request: Request): CfGeo {
+  const cf = (request as Request & { cf?: Record<string, unknown> }).cf;
+  return {
+    country: asNullableString(cf?.country),
+    region: asNullableString(cf?.region),
+    city: asNullableString(cf?.city),
+    latitude: asNullableNumber(cf?.latitude),
+    longitude: asNullableNumber(cf?.longitude),
+    colo: asNullableString(cf?.colo),
+  };
+}
+
+export function buildWindowFilter(
+  requestedWindow: string | null,
+  now: Date = new Date(),
+): WindowFilter {
+  const windowKey =
+    requestedWindow === "24h" ||
+    requestedWindow === "7d" ||
+    requestedWindow === "30d"
+      ? requestedWindow
+      : "24h";
+  const option = WINDOW_OPTIONS[windowKey];
+  return {
+    windowKey,
+    label: option.label,
+    sinceIso: new Date(now.getTime() - option.durationMs).toISOString(),
+    bucket: option.bucket,
+  };
+}
+
+export async function loadDashboardSummary(
+  env: Env,
+  requestedWindow: string | null,
+  now: Date = new Date(),
+): Promise<DashboardSummary> {
+  const filter = buildWindowFilter(requestedWindow, now);
+  const query = await env.DB.prepare(
+    "SELECT * FROM reports WHERE window_end >= ? ORDER BY window_end DESC",
+  )
+    .bind(filter.sinceIso)
+    .all<ReportRow>();
+  const rows = (query.results ?? []) as ReportRow[];
+  return summarizeRows(rows, filter);
+}
+
+export function summarizeRows(
+  rows: ReportRow[],
+  filter: WindowFilter,
+): DashboardSummary {
+  const packetTypeTotals = PACKET_TYPE_KEYS.map((key) => ({
+    key,
+    label: PACKET_TYPE_LABELS[key],
+    total: sumRows(rows, key),
+  })).sort((left, right) => right.total - left.total);
+  const pathModeTotals = PATH_MODE_KEYS.map((key) => ({
+    key,
+    label: PATH_MODE_LABELS[key],
+    total: sumRows(rows, key),
+  })).sort((left, right) => right.total - left.total);
+  const decodedPackets = PACKET_TYPE_KEYS.reduce(
+    (total, key) => total + sumRows(rows, key),
+    0,
+  );
+  const decodeFailures = sumRows(rows, "decode_fail");
+  const reporterMap = new Map<string, ReporterSummary>();
+  const chartBuckets = new Map<string, ChartPoint>();
+
+  // per-version and per-colo accumulators
+  const versionMap = new Map<string, { reporters: Set<string>; packets: number }>();
+  const compositionBuckets = new Map<string, { human: number; overhead: number }>();
+
+  for (const row of rows) {
+    const packetTotal =
+      decodeFailuresForRow(row) +
+      PACKET_TYPE_KEYS.reduce((total, key) => total + row[key], 0);
+    const existingReporter = reporterMap.get(row.device_key6);
+    if (!existingReporter) {
+      reporterMap.set(row.device_key6, {
+        key6: row.device_key6,
+        lastSeen: row.window_end,
+        packetTotal,
+        country: row.cf_country ?? "Unknown",
+        city: row.cf_city ?? row.cf_region ?? "Unknown",
+        latitude: row.cf_latitude,
+        longitude: row.cf_longitude,
+      });
+    } else {
+      existingReporter.packetTotal += packetTotal;
+      if (row.window_end > existingReporter.lastSeen) {
+        existingReporter.lastSeen = row.window_end;
+        existingReporter.country = row.cf_country ?? existingReporter.country;
+        existingReporter.city =
+          row.cf_city ?? row.cf_region ?? existingReporter.city;
+        existingReporter.latitude = row.cf_latitude;
+        existingReporter.longitude = row.cf_longitude;
+      }
+    }
+
+    const bucketKey = formatBucket(row.window_end, filter.bucket);
+    const existingBucket = chartBuckets.get(bucketKey);
+    if (existingBucket) {
+      existingBucket.totalPackets += packetTotal;
+      existingBucket.reports += 1;
+    } else {
+      chartBuckets.set(bucketKey, {
+        label: bucketKey,
+        totalPackets: packetTotal,
+        reports: 1,
+      });
+    }
+
+    // app version
+    const ver = row.app_version ?? "unknown";
+    const verEntry = versionMap.get(ver);
+    if (verEntry) {
+      verEntry.reporters.add(row.device_key6);
+      verEntry.packets += packetTotal;
+    } else {
+      versionMap.set(ver, { reporters: new Set([row.device_key6]), packets: packetTotal });
+    }
+
+    // composition over time (human = text + group_text, overhead = rest)
+    const humanPackets = row.pt_02 + row.pt_05;
+    const overheadPackets = packetTotal - humanPackets;
+    const compBucket = compositionBuckets.get(bucketKey);
+    if (compBucket) {
+      compBucket.human += humanPackets;
+      compBucket.overhead += overheadPackets;
+    } else {
+      compositionBuckets.set(bucketKey, { human: humanPackets, overhead: overheadPackets });
+    }
+  }
+
+  const recentReporters = [...reporterMap.values()]
+    .sort((left, right) => right.lastSeen.localeCompare(left.lastSeen))
+    .slice(0, 12);
+  const locationPoints = recentReporters
+    .filter(
+      (
+        reporter,
+      ): reporter is ReporterSummary & { latitude: number; longitude: number } =>
+        reporter.latitude !== null && reporter.longitude !== null,
+    )
+    .map((reporter) => ({
+      key6: reporter.key6,
+      city: reporter.city,
+      country: reporter.country,
+      latitude: reporter.latitude,
+      longitude: reporter.longitude,
+    }));
+
+  // human = text messages (pt_02 + pt_05), acks = pt_03, overhead = everything else
+  const humanTotal = sumRows(rows, "pt_02") + sumRows(rows, "pt_05");
+  const acksTotal = sumRows(rows, "pt_03");
+  const overheadTotal = decodedPackets - humanTotal - acksTotal;
+
+  // multi-hop: direct = path_mode_none, multiHop = 1b+2b+3b
+  const directTotal = sumRows(rows, "path_mode_none");
+  const multiHopTotal = sumRows(rows, "path_mode_1b") + sumRows(rows, "path_mode_2b") + sumRows(rows, "path_mode_3b");
+
+  return {
+    filter,
+    reportCount: rows.length,
+    uniqueDevices: reporterMap.size,
+    decodedPackets,
+    decodeFailures,
+    packetTypeTotals,
+    pathModeTotals,
+    recentReporters,
+    chartPoints: [...chartBuckets.values()].sort((left, right) =>
+      left.label.localeCompare(right.label),
+    ),
+    locationPoints,
+    appVersions: [...versionMap.entries()]
+      .map(([version, entry]) => ({ version, reporters: entry.reporters.size, packets: entry.packets }))
+      .sort((left, right) => right.packets - left.packets),
+    trafficComposition: { human: humanTotal, overhead: overheadTotal, acks: acksTotal },
+    multiHopRatio: { direct: directTotal, multiHop: multiHopTotal },
+    compositionOverTime: [...compositionBuckets.entries()]
+      .map(([label, entry]) => ({ label, ...entry }))
+      .sort((left, right) => left.label.localeCompare(right.label)),
+  };
+}
+
+function validateCounts(value: unknown): Counts {
+  if (typeof value !== "object" || value === null) {
+    throw new Error("counts must be an object.");
+  }
+  const record = value as Record<string, unknown>;
+  const counts = createEmptyCounts();
+  for (const key of COUNT_KEYS) {
+    const rawValue = record[key];
+    if (typeof rawValue !== "number" || !Number.isFinite(rawValue)) {
+      throw new Error(`counts.${key} must be a number.`);
+    }
+    if (rawValue < 0) {
+      throw new Error(`counts.${key} must be zero or greater.`);
+    }
+    counts[key] = Math.trunc(rawValue);
+  }
+  return counts;
+}
+
+function sumRows(rows: ReportRow[], key: CountKey): number {
+  return rows.reduce((total, row) => total + (row[key] ?? 0), 0);
+}
+
+function decodeFailuresForRow(row: ReportRow): number {
+  return row.decode_fail ?? 0;
+}
+
+function formatBucket(value: string, bucket: "hour" | "day"): string {
+  const date = new Date(value);
+  const month = `${date.getUTCMonth() + 1}`.padStart(2, "0");
+  const day = `${date.getUTCDate()}`.padStart(2, "0");
+  if (bucket === "day") {
+    return `${date.getUTCFullYear()}-${month}-${day}`;
+  }
+  const hour = `${date.getUTCHours()}`.padStart(2, "0");
+  return `${date.getUTCFullYear()}-${month}-${day} ${hour}:00`;
+}
+
+function asTrimmedString(value: unknown, fieldName: string): string {
+  if (typeof value !== "string" || value.trim().length === 0) {
+    throw new Error(`${fieldName} must be a non-empty string.`);
+  }
+  return value.trim();
+}
+
+function asIsoString(value: unknown, fieldName: string): string {
+  const stringValue = asTrimmedString(value, fieldName);
+  if (Number.isNaN(Date.parse(stringValue))) {
+    throw new Error(`${fieldName} must be a valid ISO-8601 timestamp.`);
+  }
+  return new Date(stringValue).toISOString();
+}
+
+function asNullableString(value: unknown): string | null {
+  return typeof value === "string" && value.trim().length > 0
+    ? value.trim()
+    : null;
+}
+
+function asNullableNumber(value: unknown): number | null {
+  if (typeof value === "number" && Number.isFinite(value)) {
+    return value;
+  }
+  if (typeof value === "string" && value.trim().length > 0) {
+    const parsed = Number(value);
+    return Number.isFinite(parsed) ? parsed : null;
+  }
+  return null;
+}

worker/wrangler.toml

@@ -0,0 +1,20 @@
+name = "meshcore-sar-stats"
+main = "worker/index.ts"
+compatibility_date = "2026-04-03"
+compatibility_flags = ["nodejs_compat"]
+
+[observability.logs]
+enabled = false
+
+[placement]
+mode = "smart"
+
+[assets]
+directory = "./dist"
+not_found_handling = "404-page"
+run_worker_first = ["/api/*"]
+
+[[d1_databases]]
+binding = "DB"
+database_name = "meshcore_sar_rx_stats"
+database_id = "94a3978f-13d9-4dc8-9a3c-2beb102699e5"