feat: synchronize user profile name with mesh identity

Author: CreatorJohn

lib/src/features/onboarding/presentation/onboarding_controller.dart

@@ -3,6 +3,7 @@ import 'package:flutter_background_service/flutter_background_service.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:off_chat/src/features/profile/presentation/profile_controller.dart';
 import 'package:off_chat/src/features/profile/domain/user_model.dart';
+import 'package:off_chat/src/features/discovery/presentation/advertising_state.dart';
 import 'package:logging/logging.dart';
 
 part 'onboarding_controller.g.dart';
@@ -44,6 +45,9 @@ class OnboardingController extends _$OnboardingController {
       _log.info('Saving user profile to SharedPreferences...');
       await user.save();
 
+      // Sync with Mesh Identity
+      await ref.read(advertisingNameProvider.notifier).change(username);
+      
       // Initialize background service without blocking the state update
       _log.info('Initializing background service in background...');
       initializeBackgroundService().then((_) {

lib/src/features/profile/presentation/profile_controller.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:off_chat/src/core/database/database_provider.dart';
 import 'package:off_chat/src/features/profile/domain/user_model.dart';
+import 'package:off_chat/src/features/discovery/presentation/advertising_state.dart';
 import 'package:logging/logging.dart';
 
 part 'profile_controller.g.dart';
@@ -37,7 +38,11 @@ class ProfileController extends _$ProfileController {
   Future<void> updateUsername(String name) async {
     final user = state.value;
     if (user != null) {
-      await _saveProfile(user.copyWith(username: name));
+      final trimmed = name.trim();
+      await _saveProfile(user.copyWith(username: trimmed));
+      
+      // Use existing advertisingNameProvider logic to sync with mesh
+      await ref.read(advertisingNameProvider.notifier).change(trimmed);
     }
   }
 

lib/src/features/profile/presentation/profile_screen.dart

@@ -22,10 +22,14 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen> {
   @override
   void initState() {
     super.initState();
-    // Initialize controller with current advertising name
+    // Initialize controller with current profile name
     Future.microtask(() async {
-      final currentName = await ref.read(advertisingNameProvider.future);
-      _nameController.text = currentName;
+      final profile = await ref.read(profileControllerProvider.future);
+      if (profile != null) {
+        setState(() {
+          _nameController.text = profile.username;
+        });
+      }
     });
   }
 
@@ -251,9 +255,9 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen> {
             maxLength: BLEAdvertiser.maxNameLength,
             style: const TextStyle(color: AppTheme.onSurfaceVariant),
             decoration: InputDecoration(
-              labelText: 'Display Alias',
+              labelText: 'User Identity',
               labelStyle: TextStyle(color: AppTheme.onSurfaceVariant.withValues(alpha: 0.38)),
-              hintText: 'Enter mesh name...',
+              hintText: 'Enter your name...',
               border: OutlineInputBorder(
                 borderRadius: BorderRadius.circular(16),
                 borderSide: BorderSide(color: AppTheme.onSurfaceVariant.withValues(alpha: 0.1)),
@@ -272,14 +276,16 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen> {
                   onPressed: () {
                     final newName = _nameController.text.trim();
                     if (newName.isNotEmpty) {
-                      ref.read(advertisingNameProvider.notifier).change(newName);
+                      ref.read(profileControllerProvider.notifier).updateUsername(newName);
                       ScaffoldMessenger.of(context).showSnackBar(
-                        const SnackBar(content: Text('Identity synchronized with mesh')),
+                        const SnackBar(content: Text('Profile identity updated')),
                       );
+                      // Clear focus
+                      FocusScope.of(context).unfocus();
                     }
                   },
-                  icon: const Icon(Icons.sync, size: 18),
-                  label: const Text('SYNC NAME'),
+                  icon: const Icon(Icons.save, size: 18),
+                  label: const Text('UPDATE PROFILE'),
                   style: ElevatedButton.styleFrom(
                     padding: const EdgeInsets.symmetric(vertical: 12),
                   ),