fix(social): prevent horizontal overflow in GPX export snackbar (#52)

- Wrap GPX export snackbar message Text in Expanded with maxLines: 2 and TextOverflow.ellipsis

- Add ValueKey('gpx_export_button_<id>') for deterministic testing

- Wrap narrow feed header/metric/empty-state Row labels in Flexible to prevent overflow under 320px/360px at 1.5x text scale

- Add BUG-005 widget tests across 320x640, 360x800, and 800x480 viewports at 1.5x text scale

lib/features/dashboard/widgets/dashboard_map_panel.dart

@@ -5,15 +5,18 @@ import '../../../core/theme/app_typography.dart';
 import '../../../services/alerts/road_alert_models.dart';
 import '../../../services/alerts/road_alert_service.dart';
 import '../../../services/map/map_provider_interface.dart';
+import '../../../services/map/map_providers.dart';
 import '../../../services/map/unified_map_view.dart';
 import '../../../services/navigation/navigation_session_service.dart';
 import '../../../services/telemetry_service.dart';
+import '../../rides/ride_state_machine.dart';
 
 /// Embedded tactical map panel for Touring mode and responsive dashboard views.
 ///
 /// Subscribes to vehicle coordinates and heading via [telemetryStreamProvider]
-/// and alert pins via [activeAlertsStreamProvider].
-class DashboardMapPanel extends ConsumerWidget {
+/// and alert pins via [activeAlertsStreamProvider], maintains camera follow
+/// state, and provides a recenter control after manual pan.
+class DashboardMapPanel extends ConsumerStatefulWidget {
   final double zoom;
 
   const DashboardMapPanel({
@@ -22,7 +25,43 @@ class DashboardMapPanel extends ConsumerWidget {
   });
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  ConsumerState<DashboardMapPanel> createState() => _DashboardMapPanelState();
+}
+
+class _DashboardMapPanelState extends ConsumerState<DashboardMapPanel> {
+  static const AppLatLng _defaultFallbackCenter = AppLatLng(37.7749, -122.4194);
+  AppLatLng? _lastKnownRiderPos;
+
+  @override
+  void initState() {
+    super.initState();
+    // Ensure follow mode is active whenever the Touring map panel is mounted.
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) {
+        ref.read(mapFollowStateProvider.notifier).recenter();
+      }
+    });
+  }
+
+  bool _isValidCoord(double? lat, double? lng) {
+    return lat != null &&
+        lng != null &&
+        lat.isFinite &&
+        lng.isFinite &&
+        (lat != 0.0 || lng != 0.0);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // Re-enable camera follow automatically when a ride session starts.
+    ref.listen<RideSession>(rideStateMachineProvider, (previous, next) {
+      if (previous?.state != RideState.riding &&
+          next.state == RideState.riding &&
+          mounted) {
+        ref.read(mapFollowStateProvider.notifier).recenter();
+      }
+    });
+
     final vehicleCoords = ref.watch(
       telemetryStreamProvider.select(
         (s) => (
@@ -34,19 +73,18 @@ class DashboardMapPanel extends ConsumerWidget {
       ),
     );
 
-    final centerLat = (vehicleCoords.lat != null && vehicleCoords.lat != 0.0)
-        ? vehicleCoords.lat!
-        : 37.7749;
-    final centerLng = (vehicleCoords.lng != null && vehicleCoords.lng != 0.0)
-        ? vehicleCoords.lng!
-        : -122.4194;
+    final hasCoordinates = _isValidCoord(vehicleCoords.lat, vehicleCoords.lng);
+    if (hasCoordinates) {
+      _lastKnownRiderPos = AppLatLng(vehicleCoords.lat!, vehicleCoords.lng!);
+    }
 
+    final activeCenter = _lastKnownRiderPos ?? _defaultFallbackCenter;
     final isFresh = vehicleCoords.isGpsFresh;
-    final hasCoordinates = vehicleCoords.lat != null && vehicleCoords.lat != 0.0;
+    final isFollowMode = ref.watch(mapFollowStateProvider);
 
     final vehicleMarker = AppMapMarker(
       id: 'dash_vehicle',
-      position: AppLatLng(centerLat, centerLng),
+      position: activeCenter,
       heading: vehicleCoords.heading,
       iconWidget: Icon(
         Icons.navigation,
@@ -64,7 +102,7 @@ class DashboardMapPanel extends ConsumerWidget {
     for (final alert in activeAlerts) {
       mapMarkers.add(
         AppMapMarker(
-          id: 'dash_alert__',
+          id: 'dash_alert_${alert.id}',
           position: AppLatLng(alert.latitude, alert.longitude),
           heading: alert.heading ?? 0.0,
           label: alert.category.displayName,
@@ -116,14 +154,14 @@ class DashboardMapPanel extends ConsumerWidget {
                 Positioned.fill(
                   child: UnifiedMapView(
                     key: const ValueKey('dash_map_x'),
-                    center: AppLatLng(centerLat, centerLng),
-                    zoom: zoom,
+                    center: activeCenter,
+                    zoom: widget.zoom,
                     bearing: 0.0,
                     markers: mapMarkers,
                     polylines: polylines,
                   ),
                 ),
-                if (!isFresh && hasCoordinates)
+                if (!isFresh && (hasCoordinates || _lastKnownRiderPos != null))
                   Positioned(
                     top: 10,
                     left: 10,
@@ -154,6 +192,56 @@ class DashboardMapPanel extends ConsumerWidget {
                       ),
                     ),
                   ),
+                if (!isFollowMode)
+                  Positioned(
+                    bottom: 10,
+                    right: 10,
+                    child: Material(
+                      color: Colors.black.withValues(alpha: 0.8),
+                      borderRadius: BorderRadius.circular(20),
+                      child: InkWell(
+                        key: const ValueKey('dashboard_map_recenter_button'),
+                        borderRadius: BorderRadius.circular(20),
+                        onTap: () {
+                          ref.read(mapFollowStateProvider.notifier).recenter();
+                        },
+                        child: Container(
+                          padding: const EdgeInsets.symmetric(
+                            horizontal: 10,
+                            vertical: 6,
+                          ),
+                          decoration: BoxDecoration(
+                            borderRadius: BorderRadius.circular(20),
+                            border: Border.all(
+                              color: AppColors.cyberCyan,
+                              width: 1.2,
+                            ),
+                          ),
+                          child: const Row(
+                            mainAxisSize: MainAxisSize.min,
+                            children: [
+                              Icon(
+                                Icons.my_location,
+                                size: 14,
+                                color: AppColors.cyberCyan,
+                              ),
+                              SizedBox(width: 5),
+                              Text(
+                                'RECENTER',
+                                style: TextStyle(
+                                  fontFamily: AppTypography.fontTelemetry,
+                                  fontSize: 10,
+                                  fontWeight: FontWeight.w800,
+                                  letterSpacing: 0.6,
+                                  color: AppColors.cyberCyan,
+                                ),
+                              ),
+                            ],
+                          ),
+                        ),
+                      ),
+                    ),
+                  ),
               ],
             ),
           );
@@ -162,3 +250,4 @@ class DashboardMapPanel extends ConsumerWidget {
     );
   }
 }
+

lib/features/social/feed/widgets/feed_comments_bottom_sheet.dart

@@ -100,6 +100,14 @@ class _FeedCommentsBottomSheetState
   @override
   Widget build(BuildContext context) {
     final colors = context.motorColors;
+    final isLight = Theme.of(context).brightness == Brightness.light;
+    final secondaryTextColor =
+        isLight ? AppColors.lightOnSurfaceVariant : AppColors.darkOnSurfaceVariant;
+    final accentColor =
+        isLight ? AppColors.brandBlueStrong : colors.brandCyanBright;
+    final sendBg = isLight ? AppColors.brandBlueStrong : AppColors.electricCyan;
+    final sendFg = isLight ? AppColors.onBrand : const Color(0xFF00363D);
+
     final bottomInset = MediaQuery.of(context).viewInsets.bottom;
     final feedItems = ref.watch(socialFeedNotifierProvider);
     final livePost = feedItems.cast<SocialFeedItem?>().firstWhere(
@@ -116,14 +124,14 @@ class _FeedCommentsBottomSheetState
       ),
       child: Container(
         decoration: BoxDecoration(
-          color: const Color(0xFF101419),
+          color: colors.surfaceCardPrimary,
           borderRadius: const BorderRadius.vertical(top: Radius.circular(24)),
-          border: Border.all(color: colors.outlineVariant.withValues(alpha: 0.5)),
-          boxShadow: const [
+          border: Border.all(color: colors.surfaceBorder),
+          boxShadow: [
             BoxShadow(
-              color: Colors.black87,
+              color: colors.glowShadow,
               blurRadius: 30,
-              offset: Offset(0, -10),
+              offset: const Offset(0, -10),
             ),
           ],
         ),
@@ -139,7 +147,7 @@ class _FeedCommentsBottomSheetState
                 width: 44,
                 height: 4,
                 decoration: BoxDecoration(
-                  color: colors.outlineVariant,
+                  color: colors.surfaceBorder,
                   borderRadius: BorderRadius.circular(2),
                 ),
               ),
@@ -149,9 +157,9 @@ class _FeedCommentsBottomSheetState
                 padding: const EdgeInsets.fromLTRB(20, 8, 12, 12),
                 child: Row(
                   children: [
-                    const Icon(
+                    Icon(
                       Icons.chat_bubble_outline_rounded,
-                      color: AppColors.electricCyan,
+                      color: accentColor,
                       size: 20,
                     ),
                     const SizedBox(width: 8),
@@ -161,7 +169,7 @@ class _FeedCommentsBottomSheetState
                         fontFamily: AppTypography.fontHeadline,
                         fontSize: 16,
                         fontWeight: FontWeight.w700,
-                        color: Colors.white,
+                        color: colors.textPrimary,
                       ),
                     ),
                     const SizedBox(width: 8),
@@ -169,33 +177,35 @@ class _FeedCommentsBottomSheetState
                       padding: const EdgeInsets.symmetric(
                           horizontal: 8, vertical: 2),
                       decoration: BoxDecoration(
-                        color: const Color(0xFF1D2025),
+                        color: colors.surfaceCardSecondary,
                         borderRadius: BorderRadius.circular(12),
                         border: Border.all(
-                          color: AppColors.electricCyan.withValues(alpha: 0.3),
+                          color: accentColor.withValues(alpha: 0.35),
                         ),
                       ),
                       child: Text(
                         '${comments.length}',
-                        style: const TextStyle(
+                        style: TextStyle(
                           fontFamily: AppTypography.fontTelemetry,
                           fontSize: 12,
                           fontWeight: FontWeight.w700,
-                          color: AppColors.electricCyan,
+                          color: accentColor,
                         ),
                       ),
                     ),
                     const Spacer(),
                     IconButton(
-                      icon: const Icon(Icons.close_rounded,
-                          color: Color(0xFF849396)),
+                      icon: Icon(
+                        Icons.close_rounded,
+                        color: secondaryTextColor,
+                      ),
                       onPressed: () => Navigator.of(context).pop(),
                       tooltip: 'Close',
                     ),
                   ],
                 ),
               ),
-              const Divider(color: Color(0xFF1D2025), height: 1),
+              Divider(color: colors.surfaceBorder, height: 1),
 
               // Comment List or Empty
               Flexible(
@@ -209,16 +219,16 @@ class _FeedCommentsBottomSheetState
                             Icon(
                               Icons.forum_outlined,
                               size: 40,
-                              color: colors.outline.withValues(alpha: 0.4),
+                              color: secondaryTextColor,
                             ),
                             const SizedBox(height: 12),
-                            const Text(
+                            Text(
                               'No debrief comments yet',
                               style: TextStyle(
                                 fontFamily: AppTypography.fontHeadline,
                                 fontSize: 14,
                                 fontWeight: FontWeight.w600,
-                                color: Colors.white70,
+                                color: colors.textPrimary,
                               ),
                             ),
                             const SizedBox(height: 4),
@@ -228,7 +238,7 @@ class _FeedCommentsBottomSheetState
                               style: TextStyle(
                                 fontFamily: AppTypography.fontBody,
                                 fontSize: 12,
-                                color: colors.outline,
+                                color: secondaryTextColor,
                               ),
                             ),
                           ],
@@ -246,10 +256,10 @@ class _FeedCommentsBottomSheetState
                           return Container(
                             padding: const EdgeInsets.all(12),
                             decoration: BoxDecoration(
-                              color: const Color(0xFF181C21),
+                              color: colors.surfaceCardSecondary,
                               borderRadius: BorderRadius.circular(12),
                               border: Border.all(
-                                color: const Color(0xFF272A30),
+                                color: colors.surfaceBorder,
                               ),
                             ),
                             child: Column(
@@ -259,12 +269,11 @@ class _FeedCommentsBottomSheetState
                                   children: [
                                     CircleAvatar(
                                       radius: 14,
-                                      backgroundColor:
-                                          const Color(0xFF272A30),
-                                      child: const Icon(
+                                      backgroundColor: colors.surfaceCardPrimary,
+                                      child: Icon(
                                         Icons.sports_motorsports_rounded,
                                         size: 16,
-                                        color: AppColors.electricCyan,
+                                        color: accentColor,
                                       ),
                                     ),
                                     const SizedBox(width: 8),
@@ -275,12 +284,12 @@ class _FeedCommentsBottomSheetState
                                             child: Text(
                                               c.authorDisplayName,
                                               overflow: TextOverflow.ellipsis,
-                                              style: const TextStyle(
+                                              style: TextStyle(
                                                 fontFamily:
                                                     AppTypography.fontHeadline,
                                                 fontSize: 13,
                                                 fontWeight: FontWeight.w600,
-                                                color: Colors.white,
+                                                color: colors.textPrimary,
                                               ),
                                             ),
                                           ),
@@ -292,7 +301,7 @@ class _FeedCommentsBottomSheetState
                                                 fontFamily:
                                                     AppTypography.fontBody,
                                                 fontSize: 11,
-                                                color: colors.outline,
+                                                color: secondaryTextColor,
                                               ),
                                             ),
                                           ],
@@ -304,7 +313,7 @@ class _FeedCommentsBottomSheetState
                                       style: TextStyle(
                                         fontFamily: AppTypography.fontTelemetry,
                                         fontSize: 10,
-                                        color: colors.outline,
+                                        color: secondaryTextColor,
                                       ),
                                     ),
                                   ],
@@ -314,11 +323,11 @@ class _FeedCommentsBottomSheetState
                                   padding: const EdgeInsets.only(left: 36),
                                   child: Text(
                                     c.content,
-                                    style: const TextStyle(
+                                    style: TextStyle(
                                       fontFamily: AppTypography.fontBody,
                                       fontSize: 13,
                                       height: 1.35,
-                                      color: Color(0xFFE0E2EA),
+                                      color: colors.textPrimary,
                                     ),
                                   ),
                                 ),
@@ -329,7 +338,7 @@ class _FeedCommentsBottomSheetState
                       ),
               ),
 
-              const Divider(color: Color(0xFF1D2025), height: 1),
+              Divider(color: colors.surfaceBorder, height: 1),
 
               // Comment Input Field (Glove Friendly)
               Padding(
@@ -340,28 +349,28 @@ class _FeedCommentsBottomSheetState
                       child: Container(
                         height: 48,
                         decoration: BoxDecoration(
-                          color: const Color(0xFF181C21),
+                          color: colors.surfaceCardSecondary,
                           borderRadius: BorderRadius.circular(12),
                           border: Border.all(
-                            color: const Color(0xFF272A30),
+                            color: colors.surfaceBorder,
                           ),
                         ),
                         child: TextField(
                           controller: _commentController,
-                          style: const TextStyle(
+                          style: TextStyle(
                             fontFamily: AppTypography.fontBody,
                             fontSize: 13,
-                            color: Colors.white,
+                            color: colors.textPrimary,
                           ),
-                          decoration: const InputDecoration(
+                          decoration: InputDecoration(
                             hintText: 'Add comment or pace tip...',
                             hintStyle: TextStyle(
                               fontFamily: AppTypography.fontBody,
                               fontSize: 13,
-                              color: Color(0xFF849396),
+                              color: secondaryTextColor,
                             ),
                             border: InputBorder.none,
-                            contentPadding: EdgeInsets.symmetric(
+                            contentPadding: const EdgeInsets.symmetric(
                               horizontal: 14,
                               vertical: 14,
                             ),
@@ -376,8 +385,8 @@ class _FeedCommentsBottomSheetState
                       width: 48,
                       child: ElevatedButton(
                         style: ElevatedButton.styleFrom(
-                          backgroundColor: AppColors.electricCyan,
-                          foregroundColor: const Color(0xFF00363D),
+                          backgroundColor: sendBg,
+                          foregroundColor: sendFg,
                           padding: EdgeInsets.zero,
                           shape: RoundedRectangleBorder(
                             borderRadius: BorderRadius.circular(12),
@@ -387,12 +396,12 @@ class _FeedCommentsBottomSheetState
                         onPressed:
                             _isSubmitting ? null : () => _handlePostComment(),
                         child: _isSubmitting
-                            ? const SizedBox(
+                            ? SizedBox(
                                 width: 18,
                                 height: 18,
                                 child: CircularProgressIndicator(
                                   strokeWidth: 2,
-                                  color: Color(0xFF00363D),
+                                  color: sendFg,
                                 ),
                               )
                             : const Icon(Icons.send_rounded, size: 20),

lib/features/social/feed/widgets/feed_telemetry_inspector_modal.dart

@@ -446,6 +446,7 @@ class _FeedTelemetryInspectorModalState
     SocialFeedItem item,
     MotorSignalThemeColors colors,
   ) {
+    final hasRecorded = item.hasRecordedTelemetry;
     return Container(
       height: 220,
       decoration: BoxDecoration(
@@ -455,33 +456,90 @@ class _FeedTelemetryInspectorModalState
       ),
       child: ClipRRect(
         borderRadius: BorderRadius.circular(16),
-        child: GestureDetector(
-          onHorizontalDragUpdate: (details) {
-            final box = context.findRenderObject() as RenderBox?;
-            if (box != null) {
-              final localX = details.localPosition.dx;
-              setState(() {
-                _scrubFraction = (localX / 340).clamp(0.0, 1.0);
-              });
-            }
-          },
-          onTapDown: (details) {
-            final box = context.findRenderObject() as RenderBox?;
-            if (box != null) {
-              final localX = details.localPosition.dx;
-              setState(() {
-                _scrubFraction = (localX / 340).clamp(0.0, 1.0);
-              });
-            }
-          },
-          child: CustomPaint(
-            size: const Size(double.infinity, 220),
-            painter: _TelemetryWaveformPainter(
-              tab: _selectedTab,
-              item: item,
-              scrubFraction: _scrubFraction,
+        child: Stack(
+          fit: StackFit.expand,
+          children: [
+            GestureDetector(
+              onHorizontalDragUpdate: hasRecorded
+                  ? (details) {
+                      final box = context.findRenderObject() as RenderBox?;
+                      if (box != null) {
+                        final localX = details.localPosition.dx;
+                        setState(() {
+                          _scrubFraction = (localX / 340).clamp(0.0, 1.0);
+                        });
+                      }
+                    }
+                  : null,
+              onTapDown: hasRecorded
+                  ? (details) {
+                      final box = context.findRenderObject() as RenderBox?;
+                      if (box != null) {
+                        final localX = details.localPosition.dx;
+                        setState(() {
+                          _scrubFraction = (localX / 340).clamp(0.0, 1.0);
+                        });
+                      }
+                    }
+                  : null,
+              child: CustomPaint(
+                size: const Size(double.infinity, 220),
+                painter: _TelemetryWaveformPainter(
+                  tab: _selectedTab,
+                  item: item,
+                  scrubFraction: _scrubFraction,
+                ),
+              ),
             ),
-          ),
+            if (!hasRecorded)
+              Center(
+                child: Container(
+                  key: const ValueKey('inspector_no_telemetry_state'),
+                  margin: const EdgeInsets.symmetric(horizontal: 24),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 16,
+                    vertical: 14,
+                  ),
+                  decoration: BoxDecoration(
+                    color: const Color(0xFF141A22).withValues(alpha: 0.92),
+                    borderRadius: BorderRadius.circular(12),
+                    border: Border.all(color: const Color(0xFF2A3647)),
+                  ),
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: const [
+                      Icon(
+                        Icons.sensors_off_rounded,
+                        size: 24,
+                        color: Color(0xFF8B98A5),
+                      ),
+                      SizedBox(height: 8),
+                      Text(
+                        'NO RECORDED TELEMETRY SAMPLES',
+                        textAlign: TextAlign.center,
+                        style: TextStyle(
+                          fontFamily: AppTypography.fontTelemetry,
+                          fontSize: 11,
+                          fontWeight: FontWeight.w800,
+                          letterSpacing: 0.5,
+                          color: Colors.white,
+                        ),
+                      ),
+                      SizedBox(height: 4),
+                      Text(
+                        'Detailed multi-trace waveforms require recorded ride telemetry points.',
+                        textAlign: TextAlign.center,
+                        style: TextStyle(
+                          fontFamily: AppTypography.fontBody,
+                          fontSize: 11,
+                          color: Color(0xFF8B98A5),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+          ],
         ),
       ),
     );
@@ -491,10 +549,11 @@ class _FeedTelemetryInspectorModalState
     SocialFeedItem item,
     MotorSignalThemeColors colors,
   ) {
+    final hasRecorded = item.hasRecordedTelemetry;
     final scrubDist = (item.distanceMiles * _scrubFraction).toStringAsFixed(1);
     final scrubPct = (_scrubFraction * 100).toInt();
 
-    // Instantaneous interpolated readings based on scrub point
+    // Instantaneous interpolated readings from recorded telemetry samples
     final (speedVal, leanVal, gVal) = _calculateScrubValues(item, _scrubFraction);
 
     return Container(
@@ -520,7 +579,9 @@ class _FeedTelemetryInspectorModalState
                     const SizedBox(width: 6),
                     Flexible(
                       child: Text(
-                        'POINT: $scrubDist MI ($scrubPct%)',
+                        hasRecorded
+                            ? 'POINT: $scrubDist MI ($scrubPct%)'
+                            : 'TELEMETRY TRACE UNAVAILABLE',
                         overflow: TextOverflow.ellipsis,
                         style: const TextStyle(
                           fontFamily: AppTypography.fontTelemetry,
@@ -535,9 +596,9 @@ class _FeedTelemetryInspectorModalState
                 ),
               ),
               const SizedBox(width: 8),
-              const Text(
-                'DRAG TO SCRUB',
-                style: TextStyle(
+              Text(
+                hasRecorded ? 'DRAG TO SCRUB' : 'SUMMARY ONLY',
+                style: const TextStyle(
                   fontFamily: AppTypography.fontTelemetry,
                   fontSize: 8.5,
                   fontWeight: FontWeight.w700,
@@ -550,11 +611,11 @@ class _FeedTelemetryInspectorModalState
           Row(
             mainAxisAlignment: MainAxisAlignment.spaceAround,
             children: [
-              _buildScrubStat('SPEED', '$speedVal MPH'),
+              _buildScrubStat('SPEED', hasRecorded ? '$speedVal MPH' : '-- MPH'),
               Container(width: 1, height: 24, color: const Color(0xFF222B38)),
-              _buildScrubStat('LEAN', '$leanVal°'),
+              _buildScrubStat('LEAN', hasRecorded ? '$leanVal°' : '--°'),
               Container(width: 1, height: 24, color: const Color(0xFF222B38)),
-              _buildScrubStat('LAT G', '${gVal}G'),
+              _buildScrubStat('LAT G', hasRecorded ? '${gVal}G' : '--G'),
             ],
           ),
         ],
@@ -563,17 +624,28 @@ class _FeedTelemetryInspectorModalState
   }
 
   (int, int, String) _calculateScrubValues(SocialFeedItem item, double frac) {
-    // Generate realistic wave curves based on session metrics
-    final baseSpeed = 48.0;
-    final speedVariation = 26.0 * math.sin(frac * math.pi * 5);
-    final speed = (baseSpeed + speedVariation).clamp(20, 115).toInt();
+    if (!item.hasRecordedTelemetry || item.telemetrySamples.isEmpty) {
+      return (0, 0, '0.00');
+    }
 
-    final leanVariation = item.maxLeanAngleDeg * math.sin(frac * math.pi * 7).abs();
-    final lean = leanVariation.clamp(0, item.maxLeanAngleDeg).toInt();
+    final samples = item.telemetrySamples;
+    final clamped = frac.clamp(0.0, 1.0);
+    final exactIdx = clamped * (samples.length - 1);
+    final lowerIdx = exactIdx.floor().clamp(0, samples.length - 1);
+    final upperIdx = exactIdx.ceil().clamp(0, samples.length - 1);
+    final t = exactIdx - lowerIdx;
 
-    final gForce = (0.2 + (lean / 60.0) * 0.9).toStringAsFixed(2);
+    final a = samples[lowerIdx];
+    final b = samples[upperIdx];
 
-    return (speed, lean, gForce);
+    final speed = (a.speedMph + (b.speedMph - a.speedMph) * t).round();
+    final lean = (a.leanAngleDeg.abs() +
+            (b.leanAngleDeg.abs() - a.leanAngleDeg.abs()) * t)
+        .round();
+    final latG = (a.lateralG.abs() + (b.lateralG.abs() - a.lateralG.abs()) * t)
+        .toStringAsFixed(2);
+
+    return (speed, lean, latG);
   }
 
   Widget _buildScrubStat(String label, String value) {
@@ -640,7 +712,8 @@ class _FeedTelemetryInspectorModalState
   }
 }
 
-/// Custom painter rendering multi-trace telemetry waveforms and apex markers.
+/// Custom painter rendering recorded multi-trace telemetry waveforms and apex markers.
+/// Never fabricates synthetic curves when recorded telemetry samples are absent.
 class _TelemetryWaveformPainter extends CustomPainter {
   final _InspectorTraceTab tab;
   final SocialFeedItem item;
@@ -671,6 +744,10 @@ class _TelemetryWaveformPainter extends CustomPainter {
       canvas.drawLine(Offset(x, 0), Offset(x, h), gridPaint);
     }
 
+    if (!item.hasRecordedTelemetry || item.telemetrySamples.length < 2) {
+      return;
+    }
+
     switch (tab) {
       case _InspectorTraceTab.leanApex:
         _paintLeanWaveform(canvas, size);
@@ -701,6 +778,7 @@ class _TelemetryWaveformPainter extends CustomPainter {
     final w = size.width;
     final h = size.height;
     final midY = h * 0.52;
+    final samples = item.telemetrySamples;
 
     // Baseline (0° upright)
     final baselinePaint = Paint()
@@ -710,24 +788,27 @@ class _TelemetryWaveformPainter extends CustomPainter {
     canvas.drawLine(Offset(0, midY), Offset(w, midY), baselinePaint);
 
     final path = Path();
-    final points = <Offset>[];
-    const steps = 100;
-    final maxLean = item.maxLeanAngleDeg;
+    var peakIndex = 0;
+    var peakAbsLean = 0.0;
+    var peakPoint = Offset(0, midY);
 
-    for (var i = 0; i <= steps; i++) {
-      final t = i / steps;
+    for (var i = 0; i < samples.length; i++) {
+      final s = samples[i];
+      final t = samples.length == 1 ? 0.0 : i / (samples.length - 1);
       final x = t * w;
-      // Multi-sine wave generating cornering sections
-      final wave = math.sin(t * math.pi * 6) * 0.7 +
-          math.sin(t * math.pi * 12) * 0.3;
-      final leanAngle = wave * maxLean;
-      final y = midY - (leanAngle / 60.0) * (h * 0.38);
-      points.add(Offset(x, y));
+      final leanAngle = s.leanAngleDeg.clamp(-65.0, 65.0);
+      final y = midY - (leanAngle / 65.0) * (h * 0.38);
+      final pt = Offset(x, y);
       if (i == 0) {
         path.moveTo(x, y);
       } else {
         path.lineTo(x, y);
       }
+      if (s.leanAngleDeg.abs() >= peakAbsLean) {
+        peakAbsLean = s.leanAngleDeg.abs();
+        peakIndex = i;
+        peakPoint = pt;
+      }
     }
 
     // Draw Gradient Area under Lean Curve
@@ -754,49 +835,59 @@ class _TelemetryWaveformPainter extends CustomPainter {
       ..style = PaintingStyle.stroke;
     canvas.drawPath(path, linePaint);
 
-    // Draw Apex Markers (Peak Corners)
-    final apexMarkers = [
-      (0.26, '${item.maxLeanAngleDeg.toStringAsFixed(0)}° APEX', const Color(0xFF00E676)),
-      (0.68, '${(item.maxLeanAngleDeg * 0.94).toStringAsFixed(0)}° SWEEP', const Color(0xFFFFB300)),
-    ];
-
-    for (final marker in apexMarkers) {
-      final mx = marker.$1 * w;
-      final wave = math.sin(marker.$1 * math.pi * 6) * 0.7 +
-          math.sin(marker.$1 * math.pi * 12) * 0.3;
-      final my = midY - (wave * maxLean / 60.0) * (h * 0.38);
-
-      final dotPaint = Paint()..color = marker.$3;
-      canvas.drawCircle(Offset(mx, my), 5.0, dotPaint);
+    if (peakIndex >= 0 && peakAbsLean > 0) {
+      const markerColor = Color(0xFF00E676);
+      final dotPaint = Paint()..color = markerColor;
+      canvas.drawCircle(peakPoint, 5.0, dotPaint);
 
       final ringPaint = Paint()
-        ..color = marker.$3.withValues(alpha: 0.4)
+        ..color = markerColor.withValues(alpha: 0.4)
         ..style = PaintingStyle.stroke
         ..strokeWidth = 3;
-      canvas.drawCircle(Offset(mx, my), 8.0, ringPaint);
+      canvas.drawCircle(peakPoint, 8.0, ringPaint);
 
-      // Label Pill
-      _drawTextBadge(canvas, marker.$2, Offset(mx - 24, my - 24), marker.$3);
+      _drawTextBadge(
+        canvas,
+        '${peakAbsLean.toStringAsFixed(0)}° APEX',
+        Offset(
+          (peakPoint.dx - 24).clamp(6.0, w - 70.0),
+          (peakPoint.dy - 24).clamp(6.0, h - 24.0),
+        ),
+        markerColor,
+      );
     }
   }
 
   void _paintSpeedWaveform(Canvas canvas, Size size) {
     final w = size.width;
     final h = size.height;
+    final samples = item.telemetrySamples;
+
+    var maxSpeed = 1.0;
+    for (final s in samples) {
+      if (s.speedMph > maxSpeed) maxSpeed = s.speedMph;
+    }
+    final speedScale = math.max(maxSpeed * 1.15, 30.0);
 
     final path = Path();
-    const steps = 100;
+    var peakSpeed = 0.0;
+    var peakPoint = Offset(w * 0.5, h * 0.5);
 
-    for (var i = 0; i <= steps; i++) {
-      final t = i / steps;
+    for (var i = 0; i < samples.length; i++) {
+      final s = samples[i];
+      final t = samples.length == 1 ? 0.0 : i / (samples.length - 1);
       final x = t * w;
-      final speed = 40.0 + 35.0 * math.sin(t * math.pi * 4).abs() + 15.0 * math.cos(t * math.pi * 8);
-      final y = h * 0.90 - (speed / 120.0) * (h * 0.75);
+      final y = (h * 0.90 - (s.speedMph / speedScale) * (h * 0.75))
+          .clamp(h * 0.1, h * 0.90);
       if (i == 0) {
         path.moveTo(x, y);
       } else {
         path.lineTo(x, y);
       }
+      if (s.speedMph >= peakSpeed) {
+        peakSpeed = s.speedMph;
+        peakPoint = Offset(x, y);
+      }
     }
 
     final fillPath = Path.from(path)
@@ -821,26 +912,49 @@ class _TelemetryWaveformPainter extends CustomPainter {
       ..style = PaintingStyle.stroke;
     canvas.drawPath(path, linePaint);
 
-    _drawTextBadge(canvas, 'TOP SPEED', Offset(w * 0.5 - 28, h * 0.16), const Color(0xFFFFB300));
+    _drawTextBadge(
+      canvas,
+      '${peakSpeed.round()} MPH TOP SPEED',
+      Offset(
+        (peakPoint.dx - 36).clamp(6.0, w - 100.0),
+        (peakPoint.dy - 22).clamp(6.0, h - 24.0),
+      ),
+      const Color(0xFFFFB300),
+    );
   }
 
   void _paintElevationWaveform(Canvas canvas, Size size) {
     final w = size.width;
     final h = size.height;
+    final samples = item.telemetrySamples;
+
+    var minAlt = samples.first.altitudeFt;
+    var maxAlt = samples.first.altitudeFt;
+    for (final s in samples) {
+      if (s.altitudeFt < minAlt) minAlt = s.altitudeFt;
+      if (s.altitudeFt > maxAlt) maxAlt = s.altitudeFt;
+    }
+    final altSpan = (maxAlt - minAlt).abs();
 
     final path = Path();
-    const steps = 100;
+    var crestPoint = Offset(w * 0.5, h * 0.25);
+    var highestAlt = minAlt;
 
-    for (var i = 0; i <= steps; i++) {
-      final t = i / steps;
+    for (var i = 0; i < samples.length; i++) {
+      final s = samples[i];
+      final t = samples.length == 1 ? 0.0 : i / (samples.length - 1);
       final x = t * w;
-      final elevationNorm = 0.2 + 0.65 * (math.sin(t * math.pi * 2.2) * 0.5 + 0.5);
-      final y = h * 0.92 - elevationNorm * (h * 0.75);
+      final norm = altSpan < 1.0 ? 0.5 : (s.altitudeFt - minAlt) / altSpan;
+      final y = h * 0.92 - (0.15 + norm * 0.70) * (h * 0.75);
       if (i == 0) {
         path.moveTo(x, y);
       } else {
         path.lineTo(x, y);
       }
+      if (s.altitudeFt >= highestAlt) {
+        highestAlt = s.altitudeFt;
+        crestPoint = Offset(x, y);
+      }
     }
 
     final fillPath = Path.from(path)
@@ -868,7 +982,10 @@ class _TelemetryWaveformPainter extends CustomPainter {
     _drawTextBadge(
       canvas,
       '+${item.elevationFt} FT CREST',
-      Offset(w * 0.68 - 36, h * 0.18),
+      Offset(
+        (crestPoint.dx - 36).clamp(6.0, w - 95.0),
+        (crestPoint.dy - 22).clamp(6.0, h - 24.0),
+      ),
       const Color(0xFF448AFF),
     );
   }

lib/features/social/feed/widgets/share_session_modal.dart

@@ -15,14 +15,28 @@ import '../../../garage/garage_providers.dart';
 /// Modal dialog / bottom sheet allowing riders to share their recent ride
 /// or canyon session to the Community Social Feed.
 class ShareSessionModal extends ConsumerStatefulWidget {
-  const ShareSessionModal({super.key});
+  final Ride? initialRide;
+  final List<TelemetrySample>? initialTelemetrySamples;
 
-  static Future<void> show(BuildContext context) {
+  const ShareSessionModal({
+    super.key,
+    this.initialRide,
+    this.initialTelemetrySamples,
+  });
+
+  static Future<void> show(
+    BuildContext context, {
+    Ride? initialRide,
+    List<TelemetrySample>? initialTelemetrySamples,
+  }) {
     return showModalBottomSheet<void>(
       context: context,
       isScrollControlled: true,
       backgroundColor: Colors.transparent,
-      builder: (ctx) => const ShareSessionModal(),
+      builder: (ctx) => ShareSessionModal(
+        initialRide: initialRide,
+        initialTelemetrySamples: initialTelemetrySamples,
+      ),
     );
   }
 
@@ -33,38 +47,104 @@ class ShareSessionModal extends ConsumerStatefulWidget {
 class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
   final _formKey = GlobalKey<FormState>();
   final _titleController = TextEditingController(text: 'Morning Canyon Carve');
-  final _locationController = TextEditingController(text: 'Skyline Blvd & Highway 9');
+  final _locationController =
+      TextEditingController(text: 'Skyline Blvd & Highway 9');
   final _bikeController = TextEditingController();
-  final _distanceController = TextEditingController(text: '48.5');
-  final _durationController = TextEditingController(text: '52');
-  final _maxLeanController = TextEditingController(text: '49');
-  String _selectedLeanSide = 'RIGHT';
-  String _selectedPace = '1.25x Spirited';
   RidingDiscipline _selectedDiscipline = RidingDiscipline.canyonSport;
   bool _isSubmitting = false;
 
   List<Ride> _recentRides = [];
   Ride? _selectedRide;
-  List<AppLatLng> _selectedRoutePoints = const [
-    AppLatLng(37.3861, -122.2641),
-    AppLatLng(37.3500, -122.2300),
-    AppLatLng(37.3100, -122.2000),
-    AppLatLng(37.2800, -122.2200),
-  ];
+  List<AppLatLng> _selectedRoutePoints = const [];
+  List<FeedTelemetrySample> _selectedTelemetrySamples = const [];
+
+  double get _authoritativeDistanceMiles {
+    final ride = _selectedRide;
+    if (ride == null) return 0.0;
+    return ride.distanceMiles > 0 ? ride.distanceMiles : ride.distance;
+  }
+
+  int get _authoritativeDurationSeconds {
+    final ride = _selectedRide;
+    if (ride == null) return 0;
+    if (ride.movingTime > 0) return ride.movingTime;
+    if (ride.endTime != null) {
+      return ride.endTime!
+          .difference(ride.startTime)
+          .inSeconds
+          .clamp(0, 864000);
+    }
+    return 0;
+  }
+
+  int get _authoritativeDurationMinutes =>
+      (_authoritativeDurationSeconds / 60).round();
+
+  double get _authoritativeMaxLeanDeg {
+    final ride = _selectedRide;
+    if (ride == null) return 0.0;
+    return math.max(ride.maxLeanLeft, ride.maxLeanRight);
+  }
+
+  String get _authoritativeLeanSide {
+    final ride = _selectedRide;
+    if (ride == null ||
+        (ride.maxLeanLeft == 0.0 && ride.maxLeanRight == 0.0)) {
+      return 'NONE';
+    }
+    return ride.maxLeanRight >= ride.maxLeanLeft ? 'RIGHT' : 'LEFT';
+  }
+
+  int get _authoritativeElevationFt {
+    final ride = _selectedRide;
+    if (ride == null) return 0;
+    return (ride.elevationGain * 3.28084).round();
+  }
+
+  String get _authoritativePaceFactor {
+    final ride = _selectedRide;
+    if (ride == null) return 'N/A';
+    final avgSpeed = ride.averageSpeed > 0
+        ? ride.averageSpeed
+        : (_authoritativeDurationSeconds > 0
+            ? _authoritativeDistanceMiles /
+                (_authoritativeDurationSeconds / 3600.0)
+            : 0.0);
+    if (avgSpeed >= 45.0) return '1.45x Fast Pace';
+    if (avgSpeed >= 30.0) return '1.25x Spirited';
+    if (avgSpeed > 0.0) return '1.0x Cruiser';
+    return '1.0x Recorded';
+  }
 
   @override
   void initState() {
     super.initState();
+    if (widget.initialRide != null) {
+      _recentRides = [widget.initialRide!];
+      _applySelectedRideMetadata(widget.initialRide!);
+      if (widget.initialTelemetrySamples != null) {
+        _extractSamples(widget.initialTelemetrySamples!);
+      }
+    }
     WidgetsBinding.instance.addPostFrameCallback((_) async {
       final defaultBike = ref.read(defaultMotorcycleProvider);
-      if (defaultBike != null) {
-        _bikeController.text =
-            '${defaultBike.year} ${defaultBike.makeName} ${defaultBike.modelName}'.trim();
-      } else {
-        _bikeController.text = '2024 Ducati Streetfighter V4';
+      if (_bikeController.text.isEmpty) {
+        if (defaultBike != null) {
+          _bikeController.text =
+              '${defaultBike.year} ${defaultBike.makeName} ${defaultBike.modelName}'
+                  .trim();
+        } else {
+          _bikeController.text = '2024 Ducati Streetfighter V4';
+        }
       }
 
-      await _loadRecentRides();
+      if (widget.initialRide != null) {
+        if (widget.initialTelemetrySamples == null) {
+          await _loadSamplesForRide(widget.initialRide!);
+        }
+      } else {
+        await _loadRecentRides();
+      }
     });
   }
 
@@ -72,65 +152,105 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
     try {
       final db = ref.read(databaseProvider);
       final rides = await (db.select(db.rides)
-            ..orderBy([(t) => drift.OrderingTerm(expression: t.id, mode: drift.OrderingMode.desc)])
+            ..orderBy([
+              (t) => drift.OrderingTerm(
+                  expression: t.id, mode: drift.OrderingMode.desc)
+            ])
             ..limit(10))
           .get();
 
       if (mounted) {
         setState(() {
           _recentRides = rides;
-          if (rides.isNotEmpty) {
-            _selectRide(rides.first);
-          }
         });
+        if (rides.isNotEmpty) {
+          await _selectRide(rides.first);
+        }
       }
     } catch (_) {
       // Ignore database retrieval errors on rides
     }
   }
 
-  Future<void> _selectRide(Ride ride) async {
+  void _applySelectedRideMetadata(Ride ride) {
     _selectedRide = ride;
-    final dist = ride.distanceMiles > 0 ? ride.distanceMiles : ride.distance;
-    final durMins = ride.movingTime > 0
-        ? (ride.movingTime / 60).round()
-        : (ride.endTime?.difference(ride.startTime).inMinutes ?? 35).clamp(1, 999);
-    final maxLean = math.max(ride.maxLeanLeft, ride.maxLeanRight);
-    final side = ride.maxLeanRight >= ride.maxLeanLeft ? 'RIGHT' : 'LEFT';
-
-    _titleController.text = 'Ride #${ride.id} • ${ride.startTime.month}/${ride.startTime.day} Ride';
-    _distanceController.text = dist > 0 ? dist.toStringAsFixed(1) : '24.5';
-    _durationController.text = durMins.toString();
-    _maxLeanController.text = maxLean > 0 ? maxLean.toStringAsFixed(0) : '38';
-    _selectedLeanSide = side;
+    _titleController.text =
+        'Ride #${ride.id} • ${ride.startTime.month}/${ride.startTime.day} Ride';
 
     if (ride.motorcycleMake != null && ride.motorcycleMake!.isNotEmpty) {
       _bikeController.text =
-          '${ride.motorcycleYear ?? ''} ${ride.motorcycleMake} ${ride.motorcycleModel ?? ''}'.trim();
+          '${ride.motorcycleYear ?? ''} ${ride.motorcycleMake} ${ride.motorcycleModel ?? ''}'
+              .trim();
+    }
+  }
+
+  void _extractSamples(List<TelemetrySample> samples) {
+    final validGps = samples
+        .where((s) =>
+            s.latitude != null &&
+            s.longitude != null &&
+            s.latitude!.isFinite &&
+            s.longitude!.isFinite &&
+            (s.latitude != 0.0 || s.longitude != 0.0))
+        .toList();
+
+    List<AppLatLng> downsampledRoute = const [];
+    if (validGps.isNotEmpty) {
+      final routeStep =
+          (validGps.length / 40).ceil().clamp(1, validGps.length);
+      downsampledRoute = [
+        for (int i = 0; i < validGps.length; i += routeStep)
+          AppLatLng(validGps[i].latitude!, validGps[i].longitude!),
+        if ((validGps.length - 1) % routeStep != 0)
+          AppLatLng(validGps.last.latitude!, validGps.last.longitude!),
+      ];
     }
 
+    List<FeedTelemetrySample> downsampledTelemetry = const [];
+    if (samples.isNotEmpty) {
+      final sampleStep =
+          (samples.length / 60).ceil().clamp(1, samples.length);
+      final totalIdx = math.max(1, samples.length - 1);
+      downsampledTelemetry = [
+        for (int i = 0; i < samples.length; i += sampleStep)
+          FeedTelemetrySample(
+            progress: (i / totalIdx).clamp(0.0, 1.0),
+            speedMph: samples[i].speed ?? 0.0,
+            leanAngleDeg: samples[i].leanAngle ?? 0.0,
+            lateralG: samples[i].lateralG ?? 0.0,
+            altitudeFt: (samples[i].altitude ?? 0.0) * 3.28084,
+            latitude: samples[i].latitude,
+            longitude: samples[i].longitude,
+          ),
+      ];
+    }
+
+    _selectedRoutePoints = downsampledRoute;
+    _selectedTelemetrySamples = downsampledTelemetry;
+  }
+
+  Future<void> _loadSamplesForRide(Ride ride) async {
     try {
       final db = ref.read(databaseProvider);
       final samples = await (db.select(db.telemetrySamples)
             ..where((t) => t.rideId.equals(ride.id))
             ..orderBy([(t) => drift.OrderingTerm(expression: t.id)]))
           .get();
-
-      final validSamples = samples.where((s) => s.latitude != null && s.longitude != null).toList();
-      if (validSamples.isNotEmpty) {
-        final step = (validSamples.length / 25).ceil().clamp(1, validSamples.length);
-        final downsampled = [
-          for (int i = 0; i < validSamples.length; i += step)
-            AppLatLng(validSamples[i].latitude!, validSamples[i].longitude!)
-        ];
-        if (mounted) {
-          setState(() {
-            _selectedRoutePoints = downsampled;
-          });
-        }
+      if (mounted && _selectedRide?.id == ride.id) {
+        setState(() {
+          _extractSamples(samples);
+        });
       }
     } catch (_) {}
-    if (mounted) setState(() {});
+  }
+
+  Future<void> _selectRide(Ride ride) async {
+    setState(() {
+      _applySelectedRideMetadata(ride);
+      _selectedRoutePoints = const [];
+      _selectedTelemetrySamples = const [];
+    });
+    await _loadSamplesForRide(ride);
   }
 
   @override
@@ -138,9 +258,6 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
     _titleController.dispose();
     _locationController.dispose();
     _bikeController.dispose();
-    _distanceController.dispose();
-    _durationController.dispose();
-    _maxLeanController.dispose();
     super.dispose();
   }
 
@@ -155,9 +272,7 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
       final authorDisplayName = user?.displayName ?? 'Apex Rider';
       final authorHandle = user?.email?.split('@').first ?? 'apex_rider';
 
-      final dist = double.tryParse(_distanceController.text) ?? 35.0;
-      final durMins = int.tryParse(_durationController.text) ?? 45;
-      final lean = double.tryParse(_maxLeanController.text) ?? 45.0;
+      final ride = _selectedRide;
 
       await ref.read(socialFeedServiceProvider).shareRecentRide(
             authorUid: authorUid,
@@ -174,16 +289,19 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
             bikeModel: _bikeController.text.trim().isNotEmpty
                 ? _bikeController.text.trim()
                 : '2024 Ducati Streetfighter V4',
-            distanceMiles: dist,
-            durationSeconds: durMins * 60,
-            maxLeanAngleDeg: lean,
-            maxLeanSide: _selectedLeanSide,
-            paceFactor: _selectedPace,
+            distanceMiles: _authoritativeDistanceMiles,
+            durationSeconds: _authoritativeDurationSeconds,
+            maxLeanAngleDeg: _authoritativeMaxLeanDeg,
+            maxLeanSide: _authoritativeLeanSide,
+            paceFactor: _authoritativePaceFactor,
             hazardCount: 0,
-            elevationFt: 1840,
+            elevationFt: _authoritativeElevationFt,
             discipline: _selectedDiscipline,
             snapshotType: FeedSnapshotType.routeTrack,
             routePoints: _selectedRoutePoints,
+            telemetrySamples: _selectedTelemetrySamples,
+            authoritativeRide: ride,
+            rideId: ride?.id,
           );
 
       // Reset filter to All Activity so published session is immediately displayed
@@ -303,13 +421,13 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
                                           color: Colors.white,
                                         ),
                                       ),
-                                      Text(
+                                      const Text(
                                         'Publish telemetry & route to community feed',
                                         overflow: TextOverflow.ellipsis,
                                         style: TextStyle(
                                           fontFamily: AppTypography.fontBody,
                                           fontSize: 12,
-                                          color: colors.outline,
+                                          color: AppColors.darkOnSurfaceVariant,
                                         ),
                                       ),
                                     ],
@@ -471,158 +589,82 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
                 ),
                 const SizedBox(height: 14),
 
-                // Telemetry Metrics Grid (Distance, Duration, Lean)
+                // Read-Only Telemetry Metrics Grid (Distance, Duration, Lean, Side, Pace)
                 Row(
                   children: [
-                    Expanded(
-                      child: Column(
-                        crossAxisAlignment: CrossAxisAlignment.start,
-                        children: [
-                          _buildFieldLabel('DIST (MI)', colors),
-                          TextFormField(
-                            controller: _distanceController,
-                            keyboardType: const TextInputType.numberWithOptions(
-                                decimal: true),
-                            style: const TextStyle(
-                              fontFamily: AppTypography.fontTelemetry,
-                              fontSize: 14,
-                              color: Colors.white,
-                            ),
-                            decoration: _buildInputDecoration(hint: '0.0'),
-                          ),
-                        ],
-                      ),
+                    const Icon(
+                      Icons.lock_outline_rounded,
+                      size: 13,
+                      color: AppColors.electricCyan,
                     ),
-                    const SizedBox(width: 10),
+                    const SizedBox(width: 6),
                     Expanded(
-                      child: Column(
-                        crossAxisAlignment: CrossAxisAlignment.start,
-                        children: [
-                          _buildFieldLabel('TIME (MINS)', colors),
-                          TextFormField(
-                            controller: _durationController,
-                            keyboardType: TextInputType.number,
-                            style: const TextStyle(
-                              fontFamily: AppTypography.fontTelemetry,
-                              fontSize: 14,
-                              color: Colors.white,
-                            ),
-                            decoration: _buildInputDecoration(hint: '0'),
-                          ),
-                        ],
-                      ),
-                    ),
-                    const SizedBox(width: 10),
-                    Expanded(
-                      child: Column(
-                        crossAxisAlignment: CrossAxisAlignment.start,
-                        children: [
-                          _buildFieldLabel('LEAN (DEG)', colors),
-                          TextFormField(
-                            controller: _maxLeanController,
-                            keyboardType: const TextInputType.numberWithOptions(
-                                decimal: true),
-                            style: const TextStyle(
-                              fontFamily: AppTypography.fontTelemetry,
-                              fontSize: 14,
-                              color: AppColors.electricCyan,
-                            ),
-                            decoration: _buildInputDecoration(hint: '0°'),
-                          ),
-                        ],
+                      child: Text(
+                        _selectedRide != null
+                            ? 'RECORDED TELEMETRY (READ-ONLY)'
+                            : 'RECORDED TELEMETRY (NO ACTIVE RIDE SELECTED)',
+                        overflow: TextOverflow.ellipsis,
+                        style: const TextStyle(
+                          fontFamily: AppTypography.fontTelemetry,
+                          fontSize: 10.5,
+                          fontWeight: FontWeight.w700,
+                          letterSpacing: 0.7,
+                          color: AppColors.electricCyan,
+                        ),
                       ),
                     ),
                   ],
                 ),
-                const SizedBox(height: 14),
-
-                // Lean Side & Pace Segment Selection
+                const SizedBox(height: 8),
                 Row(
                   children: [
                     Expanded(
-                      child: Column(
-                        crossAxisAlignment: CrossAxisAlignment.start,
-                        children: [
-                          _buildFieldLabel('LEAN APEX SIDE', colors),
-                          Container(
-                            padding: const EdgeInsets.symmetric(horizontal: 12),
-                            decoration: BoxDecoration(
-                              color: const Color(0xFF181C21),
-                              borderRadius: BorderRadius.circular(10),
-                              border: Border.all(color: const Color(0xFF272A30)),
-                            ),
-                            child: DropdownButtonHideUnderline(
-                              child: DropdownButton<String>(
-                                value: _selectedLeanSide,
-                                isExpanded: true,
-                                dropdownColor: const Color(0xFF181C21),
-                                style: const TextStyle(
-                                  fontFamily: AppTypography.fontTelemetry,
-                                  fontSize: 12,
-                                  color: Colors.white,
-                                ),
-                                items: const [
-                                  DropdownMenuItem(
-                                      value: 'RIGHT', child: Text('RIGHT')),
-                                  DropdownMenuItem(
-                                      value: 'LEFT', child: Text('LEFT')),
-                                  DropdownMenuItem(
-                                      value: 'PEAK', child: Text('PEAK')),
-                                ],
-                                onChanged: (val) {
-                                  if (val != null) {
-                                    setState(() => _selectedLeanSide = val);
-                                  }
-                                },
-                              ),
-                            ),
-                          ),
-                        ],
+                      child: _buildReadOnlyTelemetryTile(
+                        key: const ValueKey('share_session_readonly_distance'),
+                        label: 'DIST (MI)',
+                        value: _authoritativeDistanceMiles.toStringAsFixed(1),
+                        colors: colors,
                       ),
                     ),
                     const SizedBox(width: 10),
                     Expanded(
-                      child: Column(
-                        crossAxisAlignment: CrossAxisAlignment.start,
-                        children: [
-                          _buildFieldLabel('PACE FACTOR', colors),
-                          Container(
-                            padding: const EdgeInsets.symmetric(horizontal: 12),
-                            decoration: BoxDecoration(
-                              color: const Color(0xFF181C21),
-                              borderRadius: BorderRadius.circular(10),
-                              border: Border.all(color: const Color(0xFF272A30)),
-                            ),
-                            child: DropdownButtonHideUnderline(
-                              child: DropdownButton<String>(
-                                value: _selectedPace,
-                                isExpanded: true,
-                                dropdownColor: const Color(0xFF181C21),
-                                style: const TextStyle(
-                                  fontFamily: AppTypography.fontTelemetry,
-                                  fontSize: 12,
-                                  color: Colors.white,
-                                ),
-                                items: const [
-                                  DropdownMenuItem(
-                                      value: '1.0x Cruiser',
-                                      child: Text('1.0x Cruiser')),
-                                  DropdownMenuItem(
-                                      value: '1.25x Spirited',
-                                      child: Text('1.25x Spirited')),
-                                  DropdownMenuItem(
-                                      value: '1.45x Fast Pace',
-                                      child: Text('1.45x Fast Pace')),
-                                ],
-                                onChanged: (val) {
-                                  if (val != null) {
-                                    setState(() => _selectedPace = val);
-                                  }
-                                },
-                              ),
-                            ),
-                          ),
-                        ],
+                      child: _buildReadOnlyTelemetryTile(
+                        key: const ValueKey('share_session_readonly_duration'),
+                        label: 'TIME (MINS)',
+                        value: _authoritativeDurationMinutes.toString(),
+                        colors: colors,
+                      ),
+                    ),
+                    const SizedBox(width: 10),
+                    Expanded(
+                      child: _buildReadOnlyTelemetryTile(
+                        key: const ValueKey('share_session_readonly_lean'),
+                        label: 'LEAN (DEG)',
+                        value: '${_authoritativeMaxLeanDeg.toStringAsFixed(0)}°',
+                        colors: colors,
+                        highlight: true,
+                      ),
+                    ),
+                  ],
+                ),
+                const SizedBox(height: 10),
+                Row(
+                  children: [
+                    Expanded(
+                      child: _buildReadOnlyTelemetryTile(
+                        key: const ValueKey('share_session_readonly_lean_side'),
+                        label: 'LEAN APEX SIDE',
+                        value: _authoritativeLeanSide,
+                        colors: colors,
+                      ),
+                    ),
+                    const SizedBox(width: 10),
+                    Expanded(
+                      child: _buildReadOnlyTelemetryTile(
+                        key: const ValueKey('share_session_readonly_pace'),
+                        label: 'PACE FACTOR',
+                        value: _authoritativePaceFactor,
+                        colors: colors,
                       ),
                     ),
                   ],
@@ -687,6 +729,53 @@ class _ShareSessionModalState extends ConsumerState<ShareSessionModal> {
 );
 }
 
+  Widget _buildReadOnlyTelemetryTile({
+    required Key key,
+    required String label,
+    required String value,
+    required MotorSignalThemeColors colors,
+    bool highlight = false,
+  }) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        _buildFieldLabel(label, colors),
+        Container(
+          key: key,
+          width: double.infinity,
+          padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 11),
+          decoration: BoxDecoration(
+            color: const Color(0xFF14181E),
+            borderRadius: BorderRadius.circular(10),
+            border: Border.all(color: const Color(0xFF263238)),
+          ),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+            children: [
+              Flexible(
+                child: Text(
+                  value,
+                  overflow: TextOverflow.ellipsis,
+                  style: TextStyle(
+                    fontFamily: AppTypography.fontTelemetry,
+                    fontSize: 13,
+                    fontWeight: FontWeight.w700,
+                    color: highlight ? AppColors.electricCyan : Colors.white,
+                  ),
+                ),
+              ),
+              const Icon(
+                Icons.lock_outline_rounded,
+                size: 13,
+                color: Color(0xFF64748B),
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
   Widget _buildFieldLabel(String label, MotorSignalThemeColors colors) {
     return Padding(
       padding: const EdgeInsets.only(bottom: 6),

lib/services/map/aws_map_provider.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:math' as math;
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
@@ -102,11 +103,31 @@ class _AwsMapViewState extends State<_AwsMapView> {
   late final MapController _mapController;
   ll.LatLng? _lastFollowPos;
   DateTime? _lastFollowTime;
+  Timer? _pendingFollowTimer;
+
+  static const int _followThrottleMs = 250;
 
   @override
   void initState() {
     super.initState();
     _mapController = MapController();
+    _lastFollowPos = ll.LatLng(widget.center.latitude, widget.center.longitude);
+  }
+
+  void _applyFollowMove(ll.LatLng target, double zoom) {
+    _lastFollowPos = target;
+    _lastFollowTime = DateTime.now();
+    try {
+      _mapController.move(target, zoom);
+    } catch (_) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (mounted) {
+          try {
+            _mapController.move(target, zoom);
+          } catch (_) {}
+        }
+      });
+    }
   }
 
   @override
@@ -124,33 +145,46 @@ class _AwsMapViewState extends State<_AwsMapView> {
           ? 1.0
           : (centerLl.latitude - _lastFollowPos!.latitude).abs() +
               (centerLl.longitude - _lastFollowPos!.longitude).abs();
+      final hasMoved = posDelta > 0.00001;
+      final elapsedMs = _lastFollowTime == null
+          ? _followThrottleMs + 1
+          : now.difference(_lastFollowTime!).inMilliseconds;
 
-      final shouldMove = justBecameFollowMode ||
+      final shouldMoveNow = justBecameFollowMode ||
           _lastFollowPos == null ||
           zoomChanged ||
-          (posDelta > 0.00005 &&
-              (_lastFollowTime == null ||
-                  now.difference(_lastFollowTime!).inMilliseconds > 500));
+          (hasMoved && (elapsedMs >= _followThrottleMs || posDelta > 0.001));
 
-      if (shouldMove) {
-        _lastFollowPos = centerLl;
-        _lastFollowTime = now;
+      if (shouldMoveNow) {
+        _pendingFollowTimer?.cancel();
+        _pendingFollowTimer = null;
+        _applyFollowMove(centerLl, widget.zoom);
+      } else if (hasMoved) {
+        _pendingFollowTimer?.cancel();
+        final remainingMs = (_followThrottleMs - elapsedMs).clamp(16, _followThrottleMs);
+        _pendingFollowTimer = Timer(Duration(milliseconds: remainingMs), () {
+          _pendingFollowTimer = null;
+          if (mounted && widget.isFollowMode) {
+            final latestCenter = ll.LatLng(
+              widget.center.latitude,
+              widget.center.longitude,
+            );
+            _applyFollowMove(latestCenter, widget.zoom);
+          }
+        });
+      }
+    } else {
+      _pendingFollowTimer?.cancel();
+      _pendingFollowTimer = null;
+      if (zoomChanged) {
         WidgetsBinding.instance.addPostFrameCallback((_) {
           if (mounted) {
             try {
-              _mapController.move(centerLl, widget.zoom);
+              _mapController.move(_mapController.camera.center, widget.zoom);
             } catch (_) {}
           }
         });
       }
-    } else if (zoomChanged) {
-      WidgetsBinding.instance.addPostFrameCallback((_) {
-        if (mounted) {
-          try {
-            _mapController.move(_mapController.camera.center, widget.zoom);
-          } catch (_) {}
-        }
-      });
     }
 
     if (bearingChanged) {
@@ -166,6 +200,7 @@ class _AwsMapViewState extends State<_AwsMapView> {
 
   @override
   void dispose() {
+    _pendingFollowTimer?.cancel();
     _mapController.dispose();
     super.dispose();
   }

lib/services/map/google_map_provider.dart

@@ -4,8 +4,6 @@ import '../../core/theme/map_style.dart';
 import 'map_provider_interface.dart';
 
 class GoogleMapProvider implements AppMapProvider {
-  gmaps.GoogleMapController? _controller;
-
   @override
   AppMapType get type => AppMapType.googleMaps;
 
@@ -25,15 +23,122 @@ class GoogleMapProvider implements AppMapProvider {
     required ValueChanged<AppLatLng>? onPositionChanged,
     required VoidCallback? onUserInteraction,
   }) {
-    final target = gmaps.LatLng(center.latitude, center.longitude);
+    return _GoogleMapView(
+      center: center,
+      zoom: zoom,
+      bearing: bearing,
+      markers: markers,
+      polylines: polylines,
+      isFollowMode: isFollowMode,
+      onPositionChanged: onPositionChanged,
+      onUserInteraction: onUserInteraction,
+    );
+  }
+}
 
-    if (isFollowMode && _controller != null) {
-      _controller!.animateCamera(
-        gmaps.CameraUpdate.newLatLngZoom(target, zoom),
+class _GoogleMapView extends StatefulWidget {
+  final AppLatLng center;
+  final double zoom;
+  final double bearing;
+  final List<AppMapMarker> markers;
+  final List<AppPolyline> polylines;
+  final bool isFollowMode;
+  final ValueChanged<AppLatLng>? onPositionChanged;
+  final VoidCallback? onUserInteraction;
+
+  const _GoogleMapView({
+    required this.center,
+    required this.zoom,
+    this.bearing = 0.0,
+    required this.markers,
+    required this.polylines,
+    required this.isFollowMode,
+    required this.onPositionChanged,
+    required this.onUserInteraction,
+  });
+
+  @override
+  State<_GoogleMapView> createState() => _GoogleMapViewState();
+}
+
+class _GoogleMapViewState extends State<_GoogleMapView> {
+  gmaps.GoogleMapController? _controller;
+  gmaps.LatLng? _lastFollowPos;
+  DateTime? _lastFollowTime;
+  bool _isProgrammaticMove = false;
+
+  static const int _followThrottleMs = 250;
+
+  @override
+  void initState() {
+    super.initState();
+    _lastFollowPos = gmaps.LatLng(widget.center.latitude, widget.center.longitude);
+  }
+
+  Future<void> _moveCamera(gmaps.LatLng target, double zoom, double bearing) async {
+    final controller = _controller;
+    if (controller == null) return;
+    _lastFollowPos = target;
+    _lastFollowTime = DateTime.now();
+    _isProgrammaticMove = true;
+    try {
+      await controller.animateCamera(
+        gmaps.CameraUpdate.newCameraPosition(
+          gmaps.CameraPosition(
+            target: target,
+            zoom: zoom,
+            bearing: bearing,
+          ),
+        ),
       );
+    } catch (_) {
+    } finally {
+      _isProgrammaticMove = false;
     }
+  }
 
-    final gMarkers = markers.map((m) {
+  @override
+  void didUpdateWidget(covariant _GoogleMapView oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (_controller == null) return;
+
+    final target = gmaps.LatLng(widget.center.latitude, widget.center.longitude);
+    final zoomChanged = (oldWidget.zoom - widget.zoom).abs() > 0.01;
+    final bearingChanged = (oldWidget.bearing - widget.bearing).abs() > 0.1;
+    final justBecameFollowMode = !oldWidget.isFollowMode && widget.isFollowMode;
+
+    if (widget.isFollowMode) {
+      final now = DateTime.now();
+      final posDelta = _lastFollowPos == null
+          ? 1.0
+          : (target.latitude - _lastFollowPos!.latitude).abs() +
+              (target.longitude - _lastFollowPos!.longitude).abs();
+      final hasMoved = posDelta > 0.00001;
+      final elapsedMs = _lastFollowTime == null
+          ? _followThrottleMs + 1
+          : now.difference(_lastFollowTime!).inMilliseconds;
+
+      if (justBecameFollowMode ||
+          _lastFollowPos == null ||
+          zoomChanged ||
+          bearingChanged ||
+          (hasMoved && (elapsedMs >= _followThrottleMs || posDelta > 0.001))) {
+        _moveCamera(target, widget.zoom, widget.bearing);
+      }
+    }
+  }
+
+  @override
+  void dispose() {
+    _controller?.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final target = gmaps.LatLng(widget.center.latitude, widget.center.longitude);
+
+    final gMarkers = widget.markers.map((m) {
       return gmaps.Marker(
         markerId: gmaps.MarkerId(m.id),
         position: gmaps.LatLng(m.position.latitude, m.position.longitude),
@@ -42,7 +147,7 @@ class GoogleMapProvider implements AppMapProvider {
       );
     }).toSet();
 
-    final gPolylines = polylines.map((p) {
+    final gPolylines = widget.polylines.map((p) {
       return gmaps.Polyline(
         polylineId: gmaps.PolylineId(p.id),
         points: p.points.map((pt) => gmaps.LatLng(pt.latitude, pt.longitude)).toList(),
@@ -58,7 +163,8 @@ class GoogleMapProvider implements AppMapProvider {
       key: ValueKey('google_map_$sizeKey'),
       initialCameraPosition: gmaps.CameraPosition(
         target: target,
-        zoom: zoom,
+        zoom: widget.zoom,
+        bearing: widget.bearing,
       ),
       markers: gMarkers,
       polylines: gPolylines,
@@ -68,13 +174,21 @@ class GoogleMapProvider implements AppMapProvider {
       compassEnabled: false,
       onMapCreated: (controller) {
         _controller = controller;
+        if (widget.isFollowMode) {
+          _moveCamera(target, widget.zoom, widget.bearing);
+        }
       },
       onCameraMoveStarted: () {
-        onUserInteraction?.call();
+        if (!_isProgrammaticMove) {
+          widget.onUserInteraction?.call();
+        }
       },
       onCameraMove: (position) {
-        onPositionChanged?.call(AppLatLng(position.target.latitude, position.target.longitude));
+        widget.onPositionChanged?.call(
+          AppLatLng(position.target.latitude, position.target.longitude),
+        );
       },
     );
   }
 }
+

lib/services/map/open_street_map_provider.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:math' as math;
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
@@ -69,11 +70,31 @@ class _OsmMapViewState extends State<_OsmMapView> {
   late final MapController _mapController;
   ll.LatLng? _lastFollowPos;
   DateTime? _lastFollowTime;
+  Timer? _pendingFollowTimer;
+
+  static const int _followThrottleMs = 250;
 
   @override
   void initState() {
     super.initState();
     _mapController = MapController();
+    _lastFollowPos = ll.LatLng(widget.center.latitude, widget.center.longitude);
+  }
+
+  void _applyFollowMove(ll.LatLng target, double zoom) {
+    _lastFollowPos = target;
+    _lastFollowTime = DateTime.now();
+    try {
+      _mapController.move(target, zoom);
+    } catch (_) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (mounted) {
+          try {
+            _mapController.move(target, zoom);
+          } catch (_) {}
+        }
+      });
+    }
   }
 
   @override
@@ -90,33 +111,46 @@ class _OsmMapViewState extends State<_OsmMapView> {
           ? 1.0
           : (centerLl.latitude - _lastFollowPos!.latitude).abs() +
               (centerLl.longitude - _lastFollowPos!.longitude).abs();
+      final hasMoved = posDelta > 0.00001;
+      final elapsedMs = _lastFollowTime == null
+          ? _followThrottleMs + 1
+          : now.difference(_lastFollowTime!).inMilliseconds;
 
-      final shouldMove = justBecameFollowMode ||
+      final shouldMoveNow = justBecameFollowMode ||
           _lastFollowPos == null ||
           zoomChanged ||
-          (posDelta > 0.00005 &&
-              (_lastFollowTime == null ||
-                  now.difference(_lastFollowTime!).inMilliseconds > 500));
+          (hasMoved && (elapsedMs >= _followThrottleMs || posDelta > 0.001));
 
-      if (shouldMove) {
-        _lastFollowPos = centerLl;
-        _lastFollowTime = now;
+      if (shouldMoveNow) {
+        _pendingFollowTimer?.cancel();
+        _pendingFollowTimer = null;
+        _applyFollowMove(centerLl, widget.zoom);
+      } else if (hasMoved) {
+        _pendingFollowTimer?.cancel();
+        final remainingMs = (_followThrottleMs - elapsedMs).clamp(16, _followThrottleMs);
+        _pendingFollowTimer = Timer(Duration(milliseconds: remainingMs), () {
+          _pendingFollowTimer = null;
+          if (mounted && widget.isFollowMode) {
+            final latestCenter = ll.LatLng(
+              widget.center.latitude,
+              widget.center.longitude,
+            );
+            _applyFollowMove(latestCenter, widget.zoom);
+          }
+        });
+      }
+    } else {
+      _pendingFollowTimer?.cancel();
+      _pendingFollowTimer = null;
+      if (zoomChanged) {
         WidgetsBinding.instance.addPostFrameCallback((_) {
           if (mounted) {
             try {
-              _mapController.move(centerLl, widget.zoom);
+              _mapController.move(_mapController.camera.center, widget.zoom);
             } catch (_) {}
           }
         });
       }
-    } else if (zoomChanged) {
-      WidgetsBinding.instance.addPostFrameCallback((_) {
-        if (mounted) {
-          try {
-            _mapController.move(_mapController.camera.center, widget.zoom);
-          } catch (_) {}
-        }
-      });
     }
 
     if (bearingChanged) {
@@ -132,6 +166,7 @@ class _OsmMapViewState extends State<_OsmMapView> {
 
   @override
   void dispose() {
+    _pendingFollowTimer?.cancel();
     _mapController.dispose();
     super.dispose();
   }

lib/services/social/social_feed_models.dart

@@ -134,10 +134,55 @@ enum FeedSnapshotType {
   scenicPhoto,
 }
 
+/// A recorded telemetry sample point attached to a shared social feed session.
+@immutable
+class FeedTelemetrySample {
+  final double progress; // 0.0 to 1.0 along the session
+  final double speedMph;
+  final double leanAngleDeg; // signed degrees (-left, +right)
+  final double lateralG;
+  final double altitudeFt;
+  final double? latitude;
+  final double? longitude;
+
+  const FeedTelemetrySample({
+    required this.progress,
+    required this.speedMph,
+    required this.leanAngleDeg,
+    this.lateralG = 0.0,
+    this.altitudeFt = 0.0,
+    this.latitude,
+    this.longitude,
+  });
+
+  Map<String, dynamic> toJson() => {
+        'progress': progress,
+        'speedMph': speedMph,
+        'leanAngleDeg': leanAngleDeg,
+        'lateralG': lateralG,
+        'altitudeFt': altitudeFt,
+        if (latitude != null) 'lat': latitude,
+        if (longitude != null) 'lng': longitude,
+      };
+
+  factory FeedTelemetrySample.fromJson(Map<String, dynamic> json) {
+    return FeedTelemetrySample(
+      progress: ((json['progress'] as num?)?.toDouble() ?? 0.0).clamp(0.0, 1.0),
+      speedMph: (json['speedMph'] as num?)?.toDouble() ?? 0.0,
+      leanAngleDeg: (json['leanAngleDeg'] as num?)?.toDouble() ?? 0.0,
+      lateralG: (json['lateralG'] as num?)?.toDouble() ?? 0.0,
+      altitudeFt: (json['altitudeFt'] as num?)?.toDouble() ?? 0.0,
+      latitude: (json['lat'] as num?)?.toDouble(),
+      longitude: (json['lng'] as num?)?.toDouble(),
+    );
+  }
+}
+
 /// A community social feed item (Stitch SOC-01).
 @immutable
 class SocialFeedItem {
   final String id;
+  final int? rideId;
   final String authorUid;
   final String authorDisplayName;
   final String authorHandle;
@@ -153,7 +198,7 @@ class SocialFeedItem {
   final double distanceMiles;
   final int durationSeconds;
   final double maxLeanAngleDeg;
-  final String maxLeanSide; // 'RIGHT', 'LEFT', 'PEAK'
+  final String maxLeanSide; // 'RIGHT', 'LEFT', 'PEAK', 'NONE'
   final String paceFactor; // e.g. '1.32x Spirited'
   final int hazardCount; // e.g. 0
   final int elevationFt; // e.g. +2140
@@ -163,9 +208,10 @@ class SocialFeedItem {
   final String? regionName;
   final bool isFeatured;
 
-  // Visual Snapshot Module
+  // Visual Snapshot & Recorded Telemetry Module
   final FeedSnapshotType snapshotType;
   final List<AppLatLng> routePoints;
+  final List<FeedTelemetrySample> telemetrySamples;
   final String? photoUrl;
   final String? photoCaption;
   final bool isGpsVerified;
@@ -178,6 +224,7 @@ class SocialFeedItem {
 
   const SocialFeedItem({
     required this.id,
+    this.rideId,
     required this.authorUid,
     required this.authorDisplayName,
     required this.authorHandle,
@@ -194,21 +241,80 @@ class SocialFeedItem {
     this.maxLeanSide = 'RIGHT',
     this.paceFactor = '1.2x Spirited',
     this.hazardCount = 0,
-    this.elevationFt = 1200,
+    this.elevationFt = 0,
     this.discipline = RidingDiscipline.canyonSport,
     this.regionName,
     this.isFeatured = false,
     this.snapshotType = FeedSnapshotType.routeTrack,
     this.routePoints = const [],
+    this.telemetrySamples = const [],
     this.photoUrl,
     this.photoCaption,
-    this.isGpsVerified = true,
+    this.isGpsVerified = false,
     this.isDemo = false,
     this.fistBumpCount = 0,
     this.fistBumpUserIds = const [],
     this.comments = const [],
   });
 
+  /// Evaluates whether a set of ride metrics and GPS route coordinates satisfy
+  /// authentic GPS verification criteria.
+  static bool verifyGpsCriteria({
+    required bool isDemo,
+    required double distanceMiles,
+    required int durationSeconds,
+    required List<AppLatLng> routePoints,
+  }) {
+    if (isDemo) return false;
+    if (!distanceMiles.isFinite || distanceMiles <= 0.0) return false;
+    if (durationSeconds <= 0) return false;
+
+    final validPoints = routePoints.where((p) {
+      return p.latitude.isFinite &&
+          p.longitude.isFinite &&
+          p.latitude.abs() <= 90.0 &&
+          p.longitude.abs() <= 180.0 &&
+          (p.latitude != 0.0 || p.longitude != 0.0);
+    }).toList();
+
+    if (validPoints.length < 2) return false;
+
+    // Require at least two distinct GPS coordinates with meaningful displacement (~50m+).
+    final first = validPoints.first;
+    final hasDistinctPoint = validPoints.skip(1).any(
+          (p) =>
+              (p.latitude - first.latitude).abs() +
+                  (p.longitude - first.longitude).abs() >
+              0.0005,
+        );
+    return hasDistinctPoint;
+  }
+
+  /// True only when this post is flagged as GPS-verified AND backed by valid,
+  /// non-demo GPS route coordinates, positive distance, and positive duration.
+  bool get hasVerifiedGps =>
+      isGpsVerified &&
+      verifyGpsCriteria(
+        isDemo: isDemo,
+        distanceMiles: distanceMiles,
+        durationSeconds: durationSeconds,
+        routePoints: routePoints,
+      );
+
+  /// True when the post is a non-demo ride containing recorded route coordinates that can be plotted.
+  bool get hasRecordedRoute =>
+      !isDemo &&
+      routePoints
+              .where((p) =>
+                  p.latitude.isFinite &&
+                  p.longitude.isFinite &&
+                  (p.latitude != 0.0 || p.longitude != 0.0))
+              .length >=
+          2;
+
+  /// True when the post contains recorded telemetry waveform samples.
+  bool get hasRecordedTelemetry => !isDemo && telemetrySamples.length >= 2;
+
   bool isFistBumpedBy(String? uid) {
     if (uid == null) return false;
     return fistBumpUserIds.contains(uid);
@@ -216,6 +322,7 @@ class SocialFeedItem {
 
   SocialFeedItem copyWith({
     String? id,
+    int? rideId,
     String? authorUid,
     String? authorDisplayName,
     String? authorHandle,
@@ -238,6 +345,7 @@ class SocialFeedItem {
     bool? isFeatured,
     FeedSnapshotType? snapshotType,
     List<AppLatLng>? routePoints,
+    List<FeedTelemetrySample>? telemetrySamples,
     String? photoUrl,
     String? photoCaption,
     bool? isGpsVerified,
@@ -248,6 +356,7 @@ class SocialFeedItem {
   }) {
     return SocialFeedItem(
       id: id ?? this.id,
+      rideId: rideId ?? this.rideId,
       authorUid: authorUid ?? this.authorUid,
       authorDisplayName: authorDisplayName ?? this.authorDisplayName,
       authorHandle: authorHandle ?? this.authorHandle,
@@ -270,6 +379,7 @@ class SocialFeedItem {
       isFeatured: isFeatured ?? this.isFeatured,
       snapshotType: snapshotType ?? this.snapshotType,
       routePoints: routePoints ?? this.routePoints,
+      telemetrySamples: telemetrySamples ?? this.telemetrySamples,
       photoUrl: photoUrl ?? this.photoUrl,
       photoCaption: photoCaption ?? this.photoCaption,
       isGpsVerified: isGpsVerified ?? this.isGpsVerified,
@@ -282,6 +392,7 @@ class SocialFeedItem {
 
   Map<String, dynamic> toJson() => {
         'id': id,
+        if (rideId != null) 'rideId': rideId,
         'authorUid': authorUid,
         'authorDisplayName': authorDisplayName,
         'authorHandle': authorHandle,
@@ -303,10 +414,14 @@ class SocialFeedItem {
         if (regionName != null) 'regionName': regionName,
         'isFeatured': isFeatured,
         'snapshotType': snapshotType.name,
-        'routePoints': routePoints.map((p) => {'lat': p.latitude, 'lng': p.longitude}).toList(),
+        'routePoints': routePoints
+            .map((p) => {'lat': p.latitude, 'lng': p.longitude})
+            .toList(),
+        if (telemetrySamples.isNotEmpty)
+          'telemetrySamples': telemetrySamples.map((s) => s.toJson()).toList(),
         if (photoUrl != null) 'photoUrl': photoUrl,
         if (photoCaption != null) 'photoCaption': photoCaption,
-        'isGpsVerified': isGpsVerified,
+        'isGpsVerified': hasVerifiedGps,
         'isDemo': isDemo,
         'fistBumpCount': fistBumpCount,
         'fistBumpUserIds': fistBumpUserIds,
@@ -326,14 +441,33 @@ class SocialFeedItem {
       }
     }
 
+    final telemetryList = json['telemetrySamples'] as List<dynamic>? ?? [];
+    final samples = telemetryList
+        .whereType<Map>()
+        .map((s) => FeedTelemetrySample.fromJson(Map<String, dynamic>.from(s)))
+        .toList();
+
     final commentList = json['comments'] as List<dynamic>? ?? [];
     final comments = commentList
         .whereType<Map<String, dynamic>>()
         .map((c) => FeedPostComment.fromJson(c))
         .toList();
 
+    final distanceMiles = (json['distanceMiles'] as num?)?.toDouble() ?? 0.0;
+    final durationSeconds = (json['durationSeconds'] as num?)?.toInt() ?? 0;
+    final isDemo = json['isDemo'] as bool? ?? false;
+    final rawVerified = json['isGpsVerified'] as bool? ?? false;
+    final verified = rawVerified &&
+        verifyGpsCriteria(
+          isDemo: isDemo,
+          distanceMiles: distanceMiles,
+          durationSeconds: durationSeconds,
+          routePoints: points,
+        );
+
     return SocialFeedItem(
       id: json['id'] as String? ?? '',
+      rideId: (json['rideId'] as num?)?.toInt(),
       authorUid: json['authorUid'] as String? ?? '',
       authorDisplayName: json['authorDisplayName'] as String? ?? 'Rider',
       authorHandle: json['authorHandle'] as String? ?? 'rider',
@@ -344,8 +478,8 @@ class SocialFeedItem {
       timestamp: _parseDateTime(json['timestamp']) ?? DateTime.now(),
       rideTitle: json['rideTitle'] as String? ?? 'Afternoon Carve',
       bikeModel: json['bikeModel'] as String? ?? 'Motorcycle',
-      distanceMiles: (json['distanceMiles'] as num?)?.toDouble() ?? 0.0,
-      durationSeconds: (json['durationSeconds'] as num?)?.toInt() ?? 0,
+      distanceMiles: distanceMiles,
+      durationSeconds: durationSeconds,
       maxLeanAngleDeg: (json['maxLeanAngleDeg'] as num?)?.toDouble() ?? 0.0,
       maxLeanSide: json['maxLeanSide'] as String? ?? 'RIGHT',
       paceFactor: json['paceFactor'] as String? ?? '1.0x',
@@ -363,13 +497,16 @@ class SocialFeedItem {
           ? FeedSnapshotType.scenicPhoto
           : FeedSnapshotType.routeTrack,
       routePoints: points,
+      telemetrySamples: samples,
       photoUrl: json['photoUrl'] as String?,
       photoCaption: json['photoCaption'] as String?,
-      isGpsVerified: json['isGpsVerified'] as bool? ?? true,
-      isDemo: json['isDemo'] as bool? ?? false,
+      isGpsVerified: verified,
+      isDemo: isDemo,
       fistBumpCount: (json['fistBumpCount'] as num?)?.toInt() ?? 0,
-      fistBumpUserIds: (json['fistBumpUserIds'] as List<dynamic>?)?.cast<String>() ?? [],
+      fistBumpUserIds:
+          (json['fistBumpUserIds'] as List<dynamic>?)?.cast<String>() ?? [],
       comments: comments,
     );
   }
 }
+

lib/services/social/social_feed_service.dart

@@ -1,5 +1,7 @@
 import 'dart:async';
+import 'dart:math' as math;
 import 'package:cloud_firestore/cloud_firestore.dart';
+import '../../database/database.dart';
 import '../map/map_provider_interface.dart';
 import 'social_feed_models.dart';
 
@@ -363,7 +365,7 @@ class SocialFeedService {
       result = result.where((i) => i.distanceMiles >= minDistanceMiles).toList();
     }
     if (verifiedGpsOnly == true) {
-      result = result.where((i) => i.isGpsVerified).toList();
+      result = result.where((i) => i.hasVerifiedGps).toList();
     }
 
     return result;
@@ -433,6 +435,11 @@ class SocialFeedService {
   }
 
   /// Share a recent completed ride session to the community feed.
+  ///
+  /// When [authoritativeRide] is provided, telemetry metrics (distance,
+  /// duration, max lean angle, lean side, elevation gain, and ride ID) are
+  /// derived strictly from [authoritativeRide] so manual/forged telemetry
+  /// overrides cannot be injected at the submission layer.
   Future<SocialFeedItem> shareRecentRide({
     required String authorUid,
     required String authorDisplayName,
@@ -443,21 +450,71 @@ class SocialFeedService {
     required String locationName,
     required String rideTitle,
     required String bikeModel,
-    required double distanceMiles,
-    required int durationSeconds,
-    required double maxLeanAngleDeg,
+    double distanceMiles = 0.0,
+    int durationSeconds = 0,
+    double maxLeanAngleDeg = 0.0,
     String maxLeanSide = 'RIGHT',
-    String paceFactor = '1.2x Spirited',
+    String paceFactor = '1.0x Cruiser',
     int hazardCount = 0,
-    int elevationFt = 1500,
+    int elevationFt = 0,
     RidingDiscipline discipline = RidingDiscipline.canyonSport,
     String? regionName,
     bool isFeatured = false,
     FeedSnapshotType snapshotType = FeedSnapshotType.routeTrack,
     List<AppLatLng> routePoints = const [],
+    List<FeedTelemetrySample> telemetrySamples = const [],
+    Ride? authoritativeRide,
+    int? rideId,
+    bool? isGpsVerified,
   }) async {
+    double resolvedDistance = distanceMiles;
+    int resolvedDurationSeconds = durationSeconds;
+    double resolvedMaxLean = maxLeanAngleDeg;
+    String resolvedLeanSide = maxLeanSide;
+    int resolvedElevationFt = elevationFt;
+    int? resolvedRideId = rideId;
+
+    if (authoritativeRide != null) {
+      resolvedRideId = authoritativeRide.id;
+      resolvedDistance = authoritativeRide.distanceMiles > 0
+          ? authoritativeRide.distanceMiles
+          : authoritativeRide.distance;
+      resolvedDurationSeconds = authoritativeRide.movingTime > 0
+          ? authoritativeRide.movingTime
+          : (authoritativeRide.endTime != null
+              ? authoritativeRide.endTime!
+                  .difference(authoritativeRide.startTime)
+                  .inSeconds
+                  .clamp(0, 864000)
+              : 0);
+      resolvedMaxLean = math.max(
+        authoritativeRide.maxLeanLeft,
+        authoritativeRide.maxLeanRight,
+      );
+      if (authoritativeRide.maxLeanLeft == 0 &&
+          authoritativeRide.maxLeanRight == 0) {
+        resolvedLeanSide = 'NONE';
+      } else {
+        resolvedLeanSide =
+            authoritativeRide.maxLeanRight >= authoritativeRide.maxLeanLeft
+                ? 'RIGHT'
+                : 'LEFT';
+      }
+      resolvedElevationFt =
+          (authoritativeRide.elevationGain * 3.28084).round();
+    }
+
+    final meetsGpsVerification = SocialFeedItem.verifyGpsCriteria(
+      isDemo: false,
+      distanceMiles: resolvedDistance,
+      durationSeconds: resolvedDurationSeconds,
+      routePoints: routePoints,
+    );
+    final effectiveGpsVerified = (isGpsVerified ?? true) && meetsGpsVerification;
+
     final newPost = SocialFeedItem(
       id: 'feed_post_${DateTime.now().millisecondsSinceEpoch}',
+      rideId: resolvedRideId,
       authorUid: authorUid,
       authorDisplayName: authorDisplayName,
       authorHandle: authorHandle,
@@ -468,19 +525,21 @@ class SocialFeedService {
       timestamp: DateTime.now(),
       rideTitle: rideTitle,
       bikeModel: bikeModel,
-      distanceMiles: distanceMiles,
-      durationSeconds: durationSeconds,
-      maxLeanAngleDeg: maxLeanAngleDeg,
-      maxLeanSide: maxLeanSide,
+      distanceMiles: resolvedDistance,
+      durationSeconds: resolvedDurationSeconds,
+      maxLeanAngleDeg: resolvedMaxLean,
+      maxLeanSide: resolvedLeanSide,
       paceFactor: paceFactor,
       hazardCount: hazardCount,
-      elevationFt: elevationFt,
+      elevationFt: resolvedElevationFt,
       discipline: discipline,
       regionName: regionName,
       isFeatured: isFeatured,
       snapshotType: snapshotType,
       routePoints: routePoints,
-      isGpsVerified: true,
+      telemetrySamples: telemetrySamples,
+      isGpsVerified: effectiveGpsVerified,
+      isDemo: false,
       fistBumpCount: 1,
       fistBumpUserIds: [authorUid],
       comments: const [],
@@ -504,3 +563,4 @@ class SocialFeedService {
     _localFeedController.close();
   }
 }
+

test/canonical_dashboard_responsive_test.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -20,6 +21,8 @@ import 'package:motorcycle_dash/models/telemetry_sample.dart';
 import 'package:motorcycle_dash/services/alerts/road_alert_models.dart';
 import 'package:motorcycle_dash/services/alerts/road_alert_service.dart';
 import 'package:motorcycle_dash/services/location_service.dart';
+import 'package:motorcycle_dash/services/map/map_providers.dart';
+import 'package:motorcycle_dash/services/map/unified_map_view.dart';
 import 'package:motorcycle_dash/services/telemetry_service.dart';
 
 void main() {
@@ -344,6 +347,166 @@ void main() {
       expect(find.text('Enable'), findsOneWidget);
     });
   });
+
+  group('BUG-001: Touring Map Rider Follow & Recenter Regression Tests', () {
+    testWidgets(
+      'Touring map follows incoming GPS coordinates in portrait and landscape, pauses on manual pan, and resumes on recenter',
+      (tester) async {
+        await prefs.setString('dashboardLayout', 'touring');
+        configureViewport(tester, 400, 800);
+        addTearDown(() => tester.view.resetPhysicalSize());
+
+        await tester.pumpWidget(buildTestDashboard());
+        await tester.pump();
+
+        expect(find.byType(DashboardMapPanel), findsOneWidget);
+        expect(find.byType(FlutterMap), findsOneWidget);
+        expect(
+          find.byKey(const ValueKey('dashboard_map_recenter_button')),
+          findsNothing,
+        );
+
+        // Emit initial GPS fix within 50ms of mount (previously dropped by 500ms cooldown)
+        telemetryController.add(
+          TelemetrySample(
+            timestamp: DateTime.now(),
+            speed: 35.0,
+            heading: 90.0,
+            latitude: 34.0522,
+            longitude: -118.2437,
+            gpsAccuracy: 5.0,
+            gpsAgeMs: 100,
+          ),
+        );
+        await tester.pump(const Duration(milliseconds: 50));
+
+        var unifiedMap = tester.widget<UnifiedMapView>(
+          find.byType(UnifiedMapView),
+        );
+        var flutterMap = tester.widget<FlutterMap>(find.byType(FlutterMap));
+        expect(unifiedMap.center.latitude, closeTo(34.0522, 0.0001));
+        expect(unifiedMap.center.longitude, closeTo(-118.2437, 0.0001));
+        expect(
+          flutterMap.mapController!.camera.center.latitude,
+          closeTo(34.0522, 0.0001),
+        );
+        expect(
+          flutterMap.mapController!.camera.center.longitude,
+          closeTo(-118.2437, 0.0001),
+        );
+
+        // Emit rapid subsequent GPS fix within 100ms (tests trailing timer follow)
+        telemetryController.add(
+          TelemetrySample(
+            timestamp: DateTime.now(),
+            speed: 45.0,
+            heading: 95.0,
+            latitude: 34.0526,
+            longitude: -118.2431,
+            gpsAccuracy: 5.0,
+            gpsAgeMs: 80,
+          ),
+        );
+        await tester.pump(const Duration(milliseconds: 50));
+        // Advance past the 250ms trailing follow timer window
+        await tester.pump(const Duration(milliseconds: 300));
+
+        flutterMap = tester.widget<FlutterMap>(find.byType(FlutterMap));
+        expect(
+          flutterMap.mapController!.camera.center.latitude,
+          closeTo(34.0526, 0.0001),
+        );
+        expect(
+          flutterMap.mapController!.camera.center.longitude,
+          closeTo(-118.2431, 0.0001),
+        );
+
+        // Simulate user manual pan / gesture interaction on the Touring map
+        final element = tester.element(find.byType(DashboardMapPanel));
+        final container = ProviderScope.containerOf(element);
+        container.read(mapFollowStateProvider.notifier).userInteracted();
+        flutterMap.mapController!.move(
+          flutterMap.mapController!.camera.center,
+          16.5,
+        );
+        await tester.pump();
+
+        // Recenter button must appear when follow mode is disabled
+        final recenterFinder = find.byKey(
+          const ValueKey('dashboard_map_recenter_button'),
+        );
+        expect(recenterFinder, findsOneWidget);
+
+        // While panned (follow mode false), incoming GPS updates move the rider marker
+        // but do NOT hijack the user's panned camera center
+        final pannedCameraCenter = flutterMap.mapController!.camera.center;
+        telemetryController.add(
+          TelemetrySample(
+            timestamp: DateTime.now(),
+            speed: 50.0,
+            heading: 100.0,
+            latitude: 34.0600,
+            longitude: -118.2500,
+            gpsAccuracy: 5.0,
+            gpsAgeMs: 80,
+          ),
+        );
+        await tester.pump(const Duration(milliseconds: 300));
+
+        flutterMap = tester.widget<FlutterMap>(find.byType(FlutterMap));
+        expect(
+          flutterMap.mapController!.camera.center.latitude,
+          closeTo(pannedCameraCenter.latitude, 0.0001),
+        );
+        expect(
+          flutterMap.mapController!.camera.center.longitude,
+          closeTo(pannedCameraCenter.longitude, 0.0001),
+        );
+
+        // Tap RECENTER button -> camera snaps back to latest rider position (34.0600, -118.2500)
+        await tester.tap(recenterFinder);
+        await tester.pump();
+
+        expect(recenterFinder, findsNothing);
+        flutterMap = tester.widget<FlutterMap>(find.byType(FlutterMap));
+        expect(
+          flutterMap.mapController!.camera.center.latitude,
+          closeTo(34.0600, 0.0001),
+        );
+        expect(
+          flutterMap.mapController!.camera.center.longitude,
+          closeTo(-118.2500, 0.0001),
+        );
+
+        // Rotate to landscape Touring mode and verify GPS follow continues cleanly
+        configureViewport(tester, 800, 360);
+        await tester.pump();
+
+        telemetryController.add(
+          TelemetrySample(
+            timestamp: DateTime.now(),
+            speed: 55.0,
+            heading: 110.0,
+            latitude: 34.0700,
+            longitude: -118.2600,
+            gpsAccuracy: 5.0,
+            gpsAgeMs: 80,
+          ),
+        );
+        await tester.pump(const Duration(milliseconds: 300));
+
+        flutterMap = tester.widget<FlutterMap>(find.byType(FlutterMap));
+        expect(
+          flutterMap.mapController!.camera.center.latitude,
+          closeTo(34.0700, 0.0001),
+        );
+        expect(
+          flutterMap.mapController!.camera.center.longitude,
+          closeTo(-118.2600, 0.0001),
+        );
+      },
+    );
+  });
 }
 
 class _TestRideStateMachine extends StateNotifier<RideSession>

test/community_social_feed_test.dart

@@ -2,8 +2,10 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:motorcycle_dash/core/theme/theme_extensions.dart';
+import 'package:motorcycle_dash/database/database.dart';
 import 'package:motorcycle_dash/features/social/feed/social_feed_screen.dart';
 import 'package:motorcycle_dash/features/social/feed/widgets/feed_comments_bottom_sheet.dart';
+import 'package:motorcycle_dash/features/social/feed/widgets/feed_telemetry_inspector_modal.dart';
 import 'package:motorcycle_dash/features/social/feed/widgets/share_session_modal.dart';
 import 'package:motorcycle_dash/features/social/social_hub_screen.dart';
 import 'package:motorcycle_dash/services/map/map_provider_interface.dart';
@@ -385,4 +387,597 @@ void main() {
       expect(find.text('OPEN FULL RIDE REPLAY'), findsOneWidget);
     });
   });
+
+  group('BUG-003: Share Recent Session Read-Only Telemetry Integrity Tests', () {
+    test(
+      'SocialFeedService.shareRecentRide enforces authoritativeRide telemetry over forged input parameters',
+      () async {
+        final service = SocialFeedService();
+        addTearDown(service.dispose);
+
+        final recordedRide = Ride(
+          id: 77,
+          startTime: DateTime(2026, 10, 10, 8, 0),
+          endTime: DateTime(2026, 10, 10, 8, 42),
+          distance: 31.4,
+          distanceMiles: 31.4,
+          movingTime: 2520, // 42 mins
+          stoppedTime: 0,
+          topSpeed: 74.5,
+          topSpeedMph: 74.5,
+          averageSpeed: 44.8,
+          maxLeanLeft: 47.0,
+          maxLeanRight: 39.0,
+          maxAccelG: 0.55,
+          maxBrakingG: 0.62,
+          elevationGain: 300.0, // ~984 ft
+          elevationLoss: 100.0,
+        );
+
+        final published = await service.shareRecentRide(
+          authorUid: 'uid_1',
+          authorDisplayName: 'Test Rider',
+          authorHandle: 'test_rider',
+          locationName: 'Highway 9',
+          rideTitle: 'Morning Run',
+          bikeModel: 'Yamaha R1',
+          // Attempt to pass forged telemetry values alongside authoritativeRide
+          distanceMiles: 999.9,
+          durationSeconds: 99999,
+          maxLeanAngleDeg: 88.0,
+          maxLeanSide: 'RIGHT',
+          elevationFt: 50000,
+          authoritativeRide: recordedRide,
+          routePoints: const [
+            AppLatLng(37.2500, -122.1200),
+            AppLatLng(37.2900, -122.1600),
+          ],
+        );
+
+        expect(published.rideId, 77);
+        expect(published.distanceMiles, closeTo(31.4, 0.001));
+        expect(published.durationSeconds, 2520);
+        expect(published.maxLeanAngleDeg, closeTo(47.0, 0.001));
+        expect(published.maxLeanSide, 'LEFT');
+        expect(published.elevationFt, (300.0 * 3.28084).round());
+      },
+    );
+
+    testWidgets(
+      'ShareSessionModal renders telemetry as read-only tiles and publishes authoritative Ride values',
+      (tester) async {
+        await tester.binding.setSurfaceSize(const Size(400, 900));
+
+        final service = SocialFeedService();
+        addTearDown(service.dispose);
+
+        final recordedRide = Ride(
+          id: 42,
+          startTime: DateTime(2026, 10, 12, 9, 0),
+          endTime: DateTime(2026, 10, 12, 9, 42),
+          distance: 31.4,
+          distanceMiles: 31.4,
+          movingTime: 2520, // 42 mins
+          stoppedTime: 0,
+          topSpeed: 78.0,
+          topSpeedMph: 78.0,
+          averageSpeed: 45.2,
+          maxLeanLeft: 47.0,
+          maxLeanRight: 41.0,
+          maxAccelG: 0.5,
+          maxBrakingG: 0.6,
+          elevationGain: 450.0,
+          elevationLoss: 150.0,
+          motorcycleYear: 2024,
+          motorcycleMake: 'Aprilia',
+          motorcycleModel: 'RSV4 Factory',
+        );
+
+        await tester.pumpWidget(
+          _createTestApp(
+            overrides: [
+              socialFeedServiceProvider.overrideWithValue(service),
+            ],
+            child: Builder(
+              builder: (context) => ElevatedButton(
+                onPressed: () => ShareSessionModal.show(
+                  context,
+                  initialRide: recordedRide,
+                ),
+                child: const Text('Open Share Modal'),
+              ),
+            ),
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        await tester.tap(find.text('Open Share Modal'));
+        await tester.pumpAndSettle();
+
+        // Only 3 editable TextFormFields exist (Title, Motorcycle Model, Location)
+        // Telemetry fields (Distance, Time, Lean) are NOT editable TextFormFields
+        expect(find.byType(TextFormField), findsNWidgets(3));
+
+        // Verify read-only telemetry tiles display the authoritative Ride metrics
+        expect(
+          find.byKey(const ValueKey('share_session_readonly_distance')),
+          findsOneWidget,
+        );
+        expect(
+          find.byKey(const ValueKey('share_session_readonly_duration')),
+          findsOneWidget,
+        );
+        expect(
+          find.byKey(const ValueKey('share_session_readonly_lean')),
+          findsOneWidget,
+        );
+        expect(
+          find.byKey(const ValueKey('share_session_readonly_lean_side')),
+          findsOneWidget,
+        );
+        expect(find.text('31.4'), findsOneWidget);
+        expect(find.text('42'), findsOneWidget);
+        expect(find.text('47°'), findsOneWidget);
+        expect(find.text('LEFT'), findsOneWidget);
+
+        // Edit metadata (Title) and publish
+        await tester.enterText(
+          find.byType(TextFormField).first,
+          'Verified Highway 9 Dawn Patrol',
+        );
+        await tester.tap(find.text('PUBLISH TO COMMUNITY FEED'));
+        await tester.pumpAndSettle();
+
+        final feedItems = await service.getFeedStream().first;
+        final latest = feedItems.first;
+        expect(latest.rideTitle, 'Verified Highway 9 Dawn Patrol');
+        expect(latest.distanceMiles, closeTo(31.4, 0.001));
+        expect(latest.durationSeconds, 2520);
+        expect(latest.maxLeanAngleDeg, closeTo(47.0, 0.001));
+        expect(latest.maxLeanSide, 'LEFT');
+      },
+    );
+  });
+
+  group('BUG-004: Published Ride Real Telemetry & GPS Verified Badge Tests', () {
+    test(
+      'SocialFeedItem.verifyGpsCriteria and hasVerifiedGps reject demo posts, forged JSON, and zero-displacement routes',
+      () {
+        // 1. Demo post with valid routePoints still must NOT be GPS verified
+        final demoPost = SocialFeedItem(
+          id: 'demo_1',
+          authorUid: 'uid_1',
+          authorDisplayName: 'Demo Rider',
+          authorHandle: 'demo',
+          locationName: 'Skyline',
+          timestamp: DateTime(2026, 10, 12),
+          rideTitle: 'Demo Ride',
+          bikeModel: 'R1',
+          distanceMiles: 40.0,
+          durationSeconds: 2400,
+          maxLeanAngleDeg: 45.0,
+          isDemo: true,
+          isGpsVerified: true,
+          routePoints: const [
+            AppLatLng(37.3861, -122.2641),
+            AppLatLng(37.2500, -122.1800),
+          ],
+        );
+        expect(demoPost.hasVerifiedGps, isFalse);
+
+        // 2. Non-demo post with < 2 points or zero displacement (< 100m) must NOT be GPS verified
+        final stationaryPost = SocialFeedItem(
+          id: 'stat_1',
+          authorUid: 'uid_1',
+          authorDisplayName: 'Rider',
+          authorHandle: 'rider',
+          locationName: 'Garage',
+          timestamp: DateTime(2026, 10, 12),
+          rideTitle: 'Garage Idle',
+          bikeModel: 'R1',
+          distanceMiles: 5.0,
+          durationSeconds: 600,
+          maxLeanAngleDeg: 10.0,
+          isDemo: false,
+          isGpsVerified: true,
+          routePoints: const [
+            AppLatLng(37.38610, -122.26410),
+            AppLatLng(37.38611, -122.26411),
+          ],
+        );
+        expect(stationaryPost.hasVerifiedGps, isFalse);
+
+        // 3. Untrusted Firestore JSON claiming isGpsVerified: true with empty routePoints is rejected
+        final forgedFromJson = SocialFeedItem.fromJson({
+          'id': 'forged_1',
+          'authorUid': 'uid_forger',
+          'authorDisplayName': 'Forger',
+          'authorHandle': 'forger',
+          'locationName': 'Nowhere',
+          'timestamp': '2026-10-12T10:00:00.000Z',
+          'rideTitle': 'Fake Verified Run',
+          'bikeModel': 'H2R',
+          'distanceMiles': 100.0,
+          'durationSeconds': 3600,
+          'maxLeanAngleDeg': 60.0,
+          'isDemo': false,
+          'isGpsVerified': true,
+          'routePoints': <Map<String, dynamic>>[],
+        });
+        expect(forgedFromJson.isGpsVerified, isFalse);
+        expect(forgedFromJson.hasVerifiedGps, isFalse);
+
+        // 4. Real non-demo ride with >= 2 distinct GPS coordinates (>= 100m), positive distance & duration is verified
+        final validPost = SocialFeedItem(
+          id: 'valid_1',
+          authorUid: 'uid_real',
+          authorDisplayName: 'Real Rider',
+          authorHandle: 'realrider',
+          locationName: 'Highway 9',
+          timestamp: DateTime(2026, 10, 12),
+          rideTitle: 'Real Canyon Run',
+          bikeModel: 'Street Triple RS',
+          distanceMiles: 24.5,
+          durationSeconds: 1800,
+          maxLeanAngleDeg: 44.0,
+          isDemo: false,
+          isGpsVerified: true,
+          routePoints: const [
+            AppLatLng(37.2500, -122.1200),
+            AppLatLng(37.2900, -122.1600),
+          ],
+        );
+        expect(validPost.hasVerifiedGps, isTrue);
+      },
+    );
+
+    testWidgets(
+      'Unverified/demo feed posts hide GPS VERIFIED badge and show explicit empty telemetry state in inspector',
+      (tester) async {
+        await tester.binding.setSurfaceSize(const Size(400, 1000));
+
+        final service = SocialFeedService();
+        addTearDown(service.dispose);
+
+        await tester.pumpWidget(
+          _createTestApp(
+            overrides: [
+              socialFeedServiceProvider.overrideWithValue(service),
+            ],
+            child: const SocialFeedScreen(),
+          ),
+        );
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 50));
+
+        // Default feed items are demo items (isDemo: true), so GPS VERIFIED badge must NOT appear
+        expect(find.text('GPS VERIFIED'), findsNothing);
+        expect(find.text('NO GPS TRACK RECORDED'), findsWidgets);
+
+        // Open telemetry inspector on unverified/demo post
+        await tester.drag(find.byType(ListView), const Offset(0, -100));
+        await tester.pumpAndSettle();
+
+        await tester.tap(find.text('INSPECT TELEMETRY GRAPH').first);
+        await tester.pumpAndSettle();
+
+        // Must show explicit no-telemetry-samples state instead of synthetic sine wave
+        expect(
+          find.byKey(const ValueKey('inspector_no_telemetry_state')),
+          findsOneWidget,
+        );
+        expect(find.text('NO RECORDED TELEMETRY SAMPLES'), findsOneWidget);
+        expect(find.text('TELEMETRY TRACE UNAVAILABLE'), findsOneWidget);
+      },
+    );
+
+    testWidgets(
+      'Verified ride with recorded telemetrySamples renders GPS VERIFIED badge and real interpolated scrubber values',
+      (tester) async {
+        await tester.binding.setSurfaceSize(const Size(400, 1000));
+
+        final verifiedItem = SocialFeedItem(
+          id: 'verified_post_99',
+          rideId: 99,
+          authorUid: 'uid_verified',
+          authorDisplayName: 'Elena Rostova',
+          authorHandle: 'ElenaApex',
+          locationName: 'Angeles Crest Hwy',
+          timestamp: DateTime.now(),
+          rideTitle: 'Verified Morning Telemetry Run',
+          bikeModel: '2024 Aprilia Tuono V4',
+          distanceMiles: 20.0,
+          durationSeconds: 1500,
+          maxLeanAngleDeg: 46.0,
+          maxLeanSide: 'LEFT',
+          elevationFt: 1800,
+          isDemo: false,
+          isGpsVerified: true,
+          routePoints: const [
+            AppLatLng(34.2000, -118.1500),
+            AppLatLng(34.2400, -118.1100),
+            AppLatLng(34.2800, -118.0700),
+          ],
+          telemetrySamples: const [
+            FeedTelemetrySample(
+              progress: 0.0,
+              speedMph: 35.0,
+              leanAngleDeg: 10.0,
+              lateralG: 0.18,
+              altitudeFt: 1200.0,
+              latitude: 34.2000,
+              longitude: -118.1500,
+            ),
+            FeedTelemetrySample(
+              progress: 0.5,
+              speedMph: 63.0,
+              leanAngleDeg: -46.0,
+              lateralG: -0.84,
+              altitudeFt: 2400.0,
+              latitude: 34.2400,
+              longitude: -118.1100,
+            ),
+            FeedTelemetrySample(
+              progress: 1.0,
+              speedMph: 42.0,
+              leanAngleDeg: 15.0,
+              lateralG: 0.25,
+              altitudeFt: 3000.0,
+              latitude: 34.2800,
+              longitude: -118.0700,
+            ),
+          ],
+        );
+
+        await tester.pumpWidget(
+          _createTestApp(
+            child: Builder(
+              builder: (context) => Column(
+                children: [
+                  if (verifiedItem.hasVerifiedGps)
+                    const Text('GPS VERIFIED'),
+                  ElevatedButton(
+                    onPressed: () =>
+                        FeedTelemetryInspectorModal.show(context, verifiedItem),
+                    child: const Text('Inspect Verified Ride'),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        expect(verifiedItem.hasVerifiedGps, isTrue);
+        expect(find.text('GPS VERIFIED'), findsOneWidget);
+
+        await tester.tap(find.text('Inspect Verified Ride'));
+        await tester.pumpAndSettle();
+
+        // No empty-state overlay when real telemetry samples exist
+        expect(
+          find.byKey(const ValueKey('inspector_no_telemetry_state')),
+          findsNothing,
+        );
+
+        // At default _scrubFraction = 0.5, scrubber readout matches sample[1] (63 MPH, 46°, 0.84G)
+        expect(find.text('POINT: 10.0 MI (50%)'), findsOneWidget);
+        expect(find.text('63 MPH'), findsOneWidget);
+        expect(find.text('46°'), findsWidgets);
+        expect(find.text('0.84G'), findsOneWidget);
+      },
+    );
+  });
+
+  group('BUG-002: Social Feed Typography & Theme Contrast Tests', () {
+    double contrastRatio(Color fg, Color bg) {
+      final l1 = fg.computeLuminance();
+      final l2 = bg.computeLuminance();
+      final brightest = l1 > l2 ? l1 : l2;
+      final darkest = l1 > l2 ? l2 : l1;
+      return (brightest + 0.05) / (darkest + 0.05);
+    }
+
+    for (final isLight in [false, true]) {
+      testWidgets(
+        'SocialFeedScreen and FeedCommentsBottomSheet maintain WCAG AA (>= 4.5:1) contrast in ${isLight ? "Light" : "Dark"} mode',
+        (tester) async {
+          await tester.binding.setSurfaceSize(const Size(412, 915));
+
+          final themeColors = isLight
+              ? MotorSignalThemeColors.light
+              : MotorSignalThemeColors.dark;
+          final baseTheme = isLight ? ThemeData.light() : ThemeData.dark();
+
+          final service = SocialFeedService();
+          addTearDown(service.dispose);
+
+          await tester.pumpWidget(
+            ProviderScope(
+              overrides: [
+                socialFeedServiceProvider.overrideWithValue(service),
+              ],
+              child: MediaQuery(
+                data: const MediaQueryData(
+                  size: Size(412, 915),
+                  textScaler: TextScaler.linear(1.2),
+                ),
+                child: MaterialApp(
+                  theme: baseTheme.copyWith(
+                    extensions: [themeColors],
+                  ),
+                  home: const SocialFeedScreen(),
+                ),
+              ),
+            ),
+          );
+          await tester.pump();
+          await tester.pump(const Duration(milliseconds: 50));
+
+          expect(tester.takeException(), isNull);
+
+          // 1. AppBar title contrast against canvas surface
+          final appBarTitle = tester.widget<Text>(find.text('Community Feed'));
+          expect(
+            contrastRatio(appBarTitle.style!.color!, themeColors.surfaceCanvas),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          // 2. Card primary text (@authorHandle and rideTitle) against card primary surface
+          final handleText = tester.widget<Text>(find.text('@ApexMarcus'));
+          expect(
+            contrastRatio(
+              handleText.style!.color!,
+              themeColors.surfaceCardPrimary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          final rideTitleText = tester.widget<Text>(
+            find.text('Sunday Skyline & Pescadero Carve'),
+          );
+          expect(
+            contrastRatio(
+              rideTitleText.style!.color!,
+              themeColors.surfaceCardPrimary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          // 3. Card secondary text (clubName) against card primary surface
+          final clubText = tester.widget<Text>(
+            find.text('Bay Area Twisties Club'),
+          );
+          expect(
+            contrastRatio(
+              clubText.style!.color!,
+              themeColors.surfaceCardPrimary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          // 4. Filter tabs (selected vs unselected) contrast
+          final selectedFilterText = tester.widget<Text>(
+            find.text('All Activity'),
+          );
+          final selectedFilterBg = isLight
+              ? const Color(0xFF0047B3)
+              : const Color(0xFF00E5FF);
+          expect(
+            contrastRatio(selectedFilterText.style!.color!, selectedFilterBg),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          final unselectedFilterText = tester.widget<Text>(
+            find.text('Club Only'),
+          );
+          expect(
+            contrastRatio(
+              unselectedFilterText.style!.color!,
+              themeColors.surfaceCardSecondary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          // 5. Telemetry metric labels and values contrast against metric cell surface
+          final distLabel = tester.widget<Text>(find.text('DISTANCE').first);
+          expect(
+            contrastRatio(
+              distLabel.style!.color!,
+              themeColors.surfaceCardPrimary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+
+          final leanValue = tester.widget<Text>(find.text('51°').first);
+          expect(
+            contrastRatio(
+              leanValue.style!.color!,
+              themeColors.surfaceCardPrimary,
+            ),
+            greaterThanOrEqualTo(4.5),
+          );
+        },
+      );
+    }
+  });
+
+  group('BUG-005: GPX Export Snackbar Horizontal Overflow Tests', () {
+    for (final viewport in const [
+      Size(320, 640),
+      Size(360, 800),
+      Size(800, 480),
+    ]) {
+      testWidgets(
+        'GPX export snackbar renders long rideTitle without RenderFlex overflow at ${viewport.width.toInt()}x${viewport.height.toInt()} (1.5x text scale)',
+        (tester) async {
+          await tester.binding.setSurfaceSize(viewport);
+
+          final service = SocialFeedService();
+          addTearDown(service.dispose);
+
+          const longRideTitle =
+              'Ultra Long Sunday Skyline Boulevard & Pescadero Creek Canyon Telemetry Endurance Carve Session With Full Squad Pack';
+
+          final post = await service.shareRecentRide(
+            authorUid: 'uid_overflow_test',
+            authorDisplayName: 'Marcus Vance',
+            authorHandle: 'ApexMarcus',
+            locationName: 'Skyline Blvd',
+            rideTitle: longRideTitle,
+            bikeModel: '2024 Ducati Streetfighter V4',
+            distanceMiles: 68.4,
+            durationSeconds: 4440,
+            maxLeanAngleDeg: 51.0,
+          );
+
+          await tester.pumpWidget(
+            ProviderScope(
+              overrides: [
+                socialFeedServiceProvider.overrideWithValue(service),
+              ],
+              child: MediaQuery(
+                data: MediaQueryData(
+                  size: viewport,
+                  textScaler: const TextScaler.linear(1.5),
+                ),
+                child: MaterialApp(
+                  theme: ThemeData.dark().copyWith(
+                    extensions: const [MotorSignalThemeColors.dark],
+                  ),
+                  home: const SocialFeedScreen(),
+                ),
+              ),
+            ),
+          );
+          await tester.pump();
+          await tester.pump(const Duration(milliseconds: 50));
+
+          final gpxButton = find.byKey(
+            ValueKey('gpx_export_button_${post.id}'),
+          );
+          await tester.scrollUntilVisible(
+            gpxButton,
+            120.0,
+            scrollable: find.descendant(
+              of: find.byKey(const ValueKey('social_feed_list_view')),
+              matching: find.byType(Scrollable),
+            ),
+          );
+          await tester.pumpAndSettle();
+
+          await tester.tap(gpxButton);
+          await tester.pump();
+          await tester.pump(const Duration(milliseconds: 300));
+
+          // Must not throw any RenderFlex overflow exception
+          expect(tester.takeException(), isNull);
+          expect(
+            find.text('GPX track exported for $longRideTitle'),
+            findsOneWidget,
+          );
+        },
+      );
+    }
+  });
 }