feat: Enhance message display with rich sender names and replace SnackBars with ToastLogger for notifications

lib/models/message.dart

@@ -116,7 +116,7 @@ class Message {
     return '${diff.inDays}d ago';
   }
 
-  /// Get display name for sender
+  /// Get display name for sender (basic fallback without contact info)
   String get displaySender {
     if (senderName != null && senderName!.isNotEmpty) {
       return senderName!;
@@ -130,6 +130,21 @@ class Message {
     return 'Unknown';
   }
 
+  /// Get rich display name for sender using contact information
+  /// Returns emoji + display name if available, otherwise falls back to displaySender
+  String getRichDisplayName(dynamic contact) {
+    if (contact == null) return displaySender;
+
+    // If contact has roleEmoji, use it with displayName
+    final roleEmoji = contact.roleEmoji;
+    if (roleEmoji != null && roleEmoji.isNotEmpty) {
+      return '$roleEmoji ${contact.displayName}';
+    }
+
+    // Otherwise just use advName or displayName
+    return contact.displayName ?? contact.advName ?? displaySender;
+  }
+
   /// Convert to SAR marker if applicable
   SarMarker? toSarMarker() {
     if (!isSarMarker || sarMarkerType == null || sarGpsCoordinates == null) {

lib/screens/messages_tab.dart

@@ -537,6 +537,26 @@ class _MessageBubble extends StatelessWidget {
     final selfPublicKey = connectionProvider.deviceInfo.publicKey;
     final isOwnMessage = message.isFromSelf(selfPublicKey);
 
+    // Look up contact information for rich display name
+    final contactsProvider = context.read<ContactsProvider>();
+    dynamic senderContact;
+    if (message.senderPublicKeyPrefix != null && !isOwnMessage) {
+      // Find contact by public key prefix (first 6 bytes)
+      final senderKeyHex = message.senderPublicKeyPrefix!
+          .sublist(0, message.senderPublicKeyPrefix!.length < 6 ? message.senderPublicKeyPrefix!.length : 6)
+          .map((b) => b.toRadixString(16).padLeft(2, '0'))
+          .join('');
+
+      senderContact = contactsProvider.contacts.where((c) {
+        return c.publicKeyHex.startsWith(senderKeyHex);
+      }).firstOrNull;
+    }
+
+    // Get rich display name (with emoji if available)
+    final displayName = isOwnMessage
+        ? 'You'
+        : message.getRichDisplayName(senderContact);
+
     // Debug: Log message details
     if (message.text.startsWith('S:')) {
       debugPrint('🎨 [MessageBubble] Rendering SAR message:');
@@ -622,7 +642,7 @@ class _MessageBubble extends StatelessWidget {
                     const Icon(Icons.person, size: 16),
                   const SizedBox(width: 4),
                   Text(
-                    isOwnMessage ? 'You' : message.displaySender,
+                    displayName,
                     style: Theme.of(context).textTheme.labelMedium?.copyWith(
                           fontWeight: FontWeight.bold,
                           color: isOwnMessage ? Theme.of(context).colorScheme.primary : null,

lib/widgets/contacts/contact_tile.dart

@@ -9,6 +9,7 @@ import '../../providers/connection_provider.dart';
 import '../../providers/map_provider.dart';
 import 'direct_message_sheet.dart';
 import 'room_login_sheet.dart';
+import '../../utils/toast_logger.dart';
 
 class ContactTile extends StatelessWidget {
   final Contact contact;
@@ -301,15 +302,11 @@ class ContactTile extends StatelessWidget {
           final hasPath = contact.hasPath;
 
           // Show initial notification reflecting the method being used
-          ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(
-              content: Text(
-                hasPath
-                    ? 'Pinging ${contact.displayName} (direct via path)...'
-                    : 'Pinging ${contact.displayName} (flooding - no path)...',
-              ),
-              duration: const Duration(seconds: 6),
-            ),
+          ToastLogger.info(
+            context,
+            hasPath
+                ? 'Pinging ${contact.displayName} (direct via path)...'
+                : 'Pinging ${contact.displayName} (flooding - no path)...',
           );
 
           // Use smart ping with automatic fallback
@@ -319,14 +316,9 @@ class ContactTile extends StatelessWidget {
             onRetryWithFlooding: () {
               // Called when retrying with flooding after direct timeout
               if (context.mounted) {
-                ScaffoldMessenger.of(context).showSnackBar(
-                  SnackBar(
-                    content: Text(
-                      'Direct ping timeout - retrying ${contact.displayName} with flooding...',
-                    ),
-                    duration: const Duration(seconds: 3),
-                    backgroundColor: Colors.orange,
-                  ),
+                ToastLogger.warning(
+                  context,
+                  'Direct ping timeout - retrying ${contact.displayName} with flooding...',
                 );
               }
             },
@@ -334,17 +326,17 @@ class ContactTile extends StatelessWidget {
 
           // Show final result
           if (context.mounted) {
-            ScaffoldMessenger.of(context).showSnackBar(
-              SnackBar(
-                content: Text(
-                  result.success
-                      ? 'Ping successful to ${contact.displayName}${result.retriedWithFlooding ? ' (via flooding fallback)' : ''}'
-                      : 'Ping failed to ${contact.displayName} - no response received',
-                ),
-                duration: const Duration(seconds: 2),
-                backgroundColor: result.success ? Colors.green : Colors.red,
-              ),
-            );
+            if (result.success) {
+              ToastLogger.success(
+                context,
+                'Ping successful to ${contact.displayName}${result.retriedWithFlooding ? ' (via flooding fallback)' : ''}',
+              );
+            } else {
+              ToastLogger.error(
+                context,
+                'Ping failed to ${contact.displayName} - no response received',
+              );
+            }
           }
         },
       ),
@@ -600,12 +592,7 @@ class ContactTile extends StatelessWidget {
                           onPressed: () {
                             final connectionProvider = context.read<ConnectionProvider>();
                             connectionProvider.requestTelemetry(contact.publicKey, zeroHop: true);
-                            ScaffoldMessenger.of(context).showSnackBar(
-                              SnackBar(
-                                content: Text('Requesting telemetry from ${contact.displayName}...'),
-                                duration: const Duration(seconds: 2),
-                              ),
-                            );
+                            ToastLogger.info(context, 'Requesting telemetry from ${contact.displayName}...');
                           },
                           icon: const Icon(Icons.refresh, size: 18),
                           label: const Text('Refresh'),
@@ -665,12 +652,7 @@ class ContactTile extends StatelessWidget {
                       child: OutlinedButton.icon(
                         onPressed: () {
                           connectionProvider.resetPath(contact.publicKey);
-                          ScaffoldMessenger.of(context).showSnackBar(
-                            SnackBar(
-                              content: Text('Path reset for ${contact.displayName}. Next message will find a new route.'),
-                              duration: const Duration(seconds: 3),
-                            ),
-                          );
+                          ToastLogger.info(context, 'Path reset for ${contact.displayName}. Next message will find a new route.');
                         },
                         icon: const Icon(Icons.route),
                         label: const Text('Reset Path (Re-route)'),

lib/widgets/contacts/direct_message_sheet.dart

@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 import '../../models/contact.dart';
 import '../../providers/connection_provider.dart';
+import '../../utils/toast_logger.dart';
 
 class DirectMessageSheet extends StatefulWidget {
   final Contact contact;
@@ -46,12 +47,7 @@ class _DirectMessageSheetState extends State<DirectMessageSheet> {
 
     if (!connectionProvider.deviceInfo.isConnected) {
       if (!mounted) return;
-      ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(
-          content: Text('Not connected to device'),
-          backgroundColor: Colors.red,
-        ),
-      );
+      ToastLogger.error(context, 'Not connected to device');
       return;
     }
 
@@ -69,21 +65,10 @@ class _DirectMessageSheetState extends State<DirectMessageSheet> {
       if (!mounted) return;
       Navigator.pop(context); // Close the dialog
 
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          content: Text('Direct message sent to ${widget.contact.displayName}'),
-          backgroundColor: Colors.green,
-          duration: const Duration(seconds: 2),
-        ),
-      );
+      ToastLogger.success(context, 'Direct message sent to ${widget.contact.displayName}');
     } catch (e) {
       if (!mounted) return;
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          content: Text('Failed to send: $e'),
-          backgroundColor: Colors.red,
-        ),
-      );
+      ToastLogger.error(context, 'Failed to send: $e');
     }
   }