Add GPX import export for trails

lib/screens/map_tab.dart

@@ -27,6 +27,7 @@ import '../widgets/map_debug_info.dart';
 import '../widgets/map/compass_widget.dart';
 import '../widgets/map/detailed_compass_dialog.dart';
 import '../widgets/map/drawing_layer.dart';
+import '../widgets/map/drawing_toolbar.dart';
 import '../widgets/map/location_trail_layer.dart';
 import '../widgets/map/trail_controls.dart';
 import '../widgets/map/map_message_overlay.dart';
@@ -2131,6 +2132,8 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                 right: 16,
                 child: Column(
                   children: [
+                    const DrawingToolbar(),
+                    const SizedBox(height: 8),
                     // Hide other buttons when in drawing mode
                     if (!drawingProvider.isDrawing) ...[
                       // Current Location - always center to GPS

lib/screens/repeaters_map_screen.dart

@@ -318,11 +318,11 @@ class _RepeatersMapScreenState extends State<RepeatersMapScreen> {
         final repeater = cluster.members.first;
         return flutter_map.Marker(
           point: cluster.center,
-          width: 40,
-          height: 40,
+          width: 80,
+          height: 100,
           child: GestureDetector(
             onTap: () => _showRepeaterDetails(repeater),
-            child: _RepeaterMarker(color: markerColor),
+            child: _RepeaterMarker(color: markerColor, label: repeater.name),
           ),
         );
       }
@@ -646,25 +646,52 @@ class _LegendRow extends StatelessWidget {
 
 class _RepeaterMarker extends StatelessWidget {
   final Color color;
+  final String label;
 
-  const _RepeaterMarker({required this.color});
+  const _RepeaterMarker({required this.color, required this.label});
 
   @override
   Widget build(BuildContext context) {
-    return Container(
-      decoration: BoxDecoration(
-        color: color,
-        shape: BoxShape.circle,
-        border: Border.all(color: Colors.white, width: 2),
-        boxShadow: [
-          BoxShadow(
-            color: Colors.black.withValues(alpha: 0.18),
-            blurRadius: 8,
-            offset: const Offset(0, 3),
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Container(
+          decoration: BoxDecoration(
+            color: color,
+            shape: BoxShape.circle,
+            border: Border.all(color: Colors.white, width: 2),
+            boxShadow: [
+              BoxShadow(
+                color: Colors.black.withValues(alpha: 0.3),
+                blurRadius: 4,
+                offset: const Offset(0, 2),
+              ),
+            ],
           ),
-        ],
-      ),
-      child: const Icon(Icons.router, color: Colors.white, size: 18),
+          padding: const EdgeInsets.all(6),
+          child: const Icon(Icons.router, color: Colors.white, size: 18),
+        ),
+        const SizedBox(height: 2),
+        Container(
+          constraints: const BoxConstraints(maxWidth: 80),
+          padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
+          decoration: BoxDecoration(
+            color: Colors.black.withValues(alpha: 0.7),
+            borderRadius: BorderRadius.circular(3),
+          ),
+          child: Text(
+            label,
+            style: const TextStyle(
+              color: Colors.white,
+              fontSize: 9,
+              fontWeight: FontWeight.bold,
+            ),
+            overflow: TextOverflow.ellipsis,
+            maxLines: 1,
+            textAlign: TextAlign.center,
+          ),
+        ),
+      ],
     );
   }
 }

lib/widgets/map/trail_controls.dart

@@ -1,7 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
+import '../../models/contact.dart';
+import '../../models/location_trail.dart';
 import '../../providers/map_provider.dart';
 import '../../providers/contacts_provider.dart';
+import '../../services/gpx_service.dart';
 import '../../services/trail_color_service.dart';
 import '../../l10n/app_localizations.dart';
 
@@ -66,6 +69,31 @@ class TrailControls extends StatelessWidget {
                 const Divider(),
                 const SizedBox(height: 8),
 
+                Wrap(
+                  spacing: 12,
+                  runSpacing: 12,
+                  children: [
+                    OutlinedButton.icon(
+                      onPressed: () => _importTrail(context, mapProvider),
+                      icon: const Icon(Icons.file_upload_outlined),
+                      label: Text(l10n.importFromClipboard),
+                    ),
+                    if (mapProvider.currentTrail != null &&
+                        mapProvider.currentTrail!.points.length >= 2)
+                      OutlinedButton.icon(
+                        onPressed: () => _exportTrail(
+                          context,
+                          mapProvider.currentTrail!,
+                          customName: 'My Trail',
+                        ),
+                        icon: const Icon(Icons.file_download_outlined),
+                        label: Text(l10n.exportToClipboard),
+                      ),
+                  ],
+                ),
+
+                const SizedBox(height: 16),
+
                 // Trail stats
                 if (mapProvider.currentTrail != null &&
                     mapProvider.currentTrail!.points.isNotEmpty)
@@ -104,8 +132,6 @@ class TrailControls extends StatelessWidget {
                     ),
                   ),
 
-                const SizedBox(height: 16),
-
                 // Clear trail button
                 if (mapProvider.currentTrail != null &&
                     mapProvider.currentTrail!.points.isNotEmpty)
@@ -238,7 +264,17 @@ class TrailControls extends StatelessWidget {
                             ),
                           ],
                         ),
-                        title: Text(contact.displayName),
+                        title: Row(
+                          children: [
+                            Expanded(child: Text(contact.displayName)),
+                            IconButton(
+                              tooltip: l10n.exportToClipboard,
+                              icon: const Icon(Icons.file_download_outlined),
+                              onPressed: () =>
+                                  _exportContactTrail(context, contact),
+                            ),
+                          ],
+                        ),
                         subtitle: Text(
                           '${contact.advertHistory.length} points',
                         ),
@@ -266,6 +302,92 @@ class TrailControls extends StatelessWidget {
     );
   }
 
+  Future<void> _importTrail(
+    BuildContext context,
+    MapProvider mapProvider,
+  ) async {
+    final l10n = AppLocalizations.of(context)!;
+
+    try {
+      final importedTrail = await GpxService.importTrailFromFile();
+      if (importedTrail == null || !context.mounted) {
+        return;
+      }
+
+      mapProvider.replaceCurrentTrailWithImport(importedTrail);
+      mapProvider.clearImportedTrail();
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            '${l10n.locationTrail}: ${importedTrail.points.length} ${l10n.points.toLowerCase()}',
+          ),
+        ),
+      );
+    } catch (error) {
+      if (!context.mounted) {
+        return;
+      }
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(l10n.importFailed(error.toString()))),
+      );
+    }
+  }
+
+  Future<void> _exportTrail(
+    BuildContext context,
+    LocationTrail trail, {
+    String? customName,
+  }) async {
+    final l10n = AppLocalizations.of(context)!;
+
+    try {
+      final success = await GpxService.exportTrailToFile(
+        trail,
+        customName: customName,
+      );
+      if (!success && context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text(l10n.exportFailed('unable to share GPX'))),
+        );
+      }
+    } catch (error) {
+      if (!context.mounted) {
+        return;
+      }
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(l10n.exportFailed(error.toString()))),
+      );
+    }
+  }
+
+  Future<void> _exportContactTrail(BuildContext context, Contact contact) async {
+    await _exportTrail(
+      context,
+      _buildContactTrail(contact),
+      customName: '${contact.displayName} Trail',
+    );
+  }
+
+  LocationTrail _buildContactTrail(Contact contact) {
+    final sortedHistory = [...contact.advertHistory]
+      ..sort((a, b) => a.timestamp.compareTo(b.timestamp));
+
+    return LocationTrail(
+      id: 'contact_${contact.publicKeyHex}',
+      isActive: false,
+      startTime: sortedHistory.first.timestamp,
+      endTime: sortedHistory.last.timestamp,
+      points: sortedHistory
+          .map(
+            (advert) => TrailPoint(
+              position: advert.location,
+              timestamp: advert.timestamp,
+            ),
+          )
+          .toList(),
+    );
+  }
+
   void _showClearConfirmation(
     BuildContext context,
     MapProvider mapProvider,