refactor: migrate to go_router navigation

lib/core/router/app_router.dart

@@ -0,0 +1,194 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
+
+import '../providers/app_providers.dart';
+import '../services/navigation_service.dart';
+import '../utils/debug_logger.dart';
+import '../../features/auth/providers/unified_auth_providers.dart';
+import '../../features/auth/views/authentication_page.dart';
+import '../../features/auth/views/connect_signin_page.dart';
+import '../../features/auth/views/server_connection_page.dart';
+import '../../features/chat/views/chat_page.dart';
+import '../../features/files/views/workspace_page.dart';
+import '../../features/navigation/views/splash_launcher_page.dart';
+import '../../features/profile/views/app_customization_page.dart';
+import '../../features/profile/views/profile_page.dart';
+import '../../l10n/app_localizations.dart';
+import '../models/server_config.dart';
+
+class RouterNotifier extends ChangeNotifier {
+  RouterNotifier(this.ref) {
+    _subscriptions = [
+      ref.listen<bool>(reviewerModeProvider, _onStateChanged),
+      ref.listen<AsyncValue<ServerConfig?>>(
+        activeServerProvider,
+        _onStateChanged,
+      ),
+      ref.listen<AuthNavigationState>(
+        authNavigationStateProvider,
+        _onStateChanged,
+      ),
+    ];
+  }
+
+  final Ref ref;
+  late final List<ProviderSubscription<dynamic>> _subscriptions;
+
+  void _onStateChanged(dynamic previous, dynamic next) {
+    notifyListeners();
+  }
+
+  String? redirect(BuildContext context, GoRouterState state) {
+    final location = state.uri.path.isEmpty ? Routes.splash : state.uri.path;
+    final reviewerMode = ref.read(reviewerModeProvider);
+    final activeServerAsync = ref.read(activeServerProvider);
+
+    if (reviewerMode) {
+      if (location == Routes.chat) return null;
+      return Routes.chat;
+    }
+
+    if (activeServerAsync.isLoading) {
+      return location == Routes.splash ? null : Routes.splash;
+    }
+
+    if (activeServerAsync.hasError) {
+      return location == Routes.serverConnection
+          ? null
+          : Routes.serverConnection;
+    }
+
+    final activeServer = activeServerAsync.asData?.value;
+    if (activeServer == null) {
+      if (_isAuthLocation(location)) return null;
+      return Routes.serverConnection;
+    }
+
+    final authState = ref.read(authNavigationStateProvider);
+    switch (authState) {
+      case AuthNavigationState.loading:
+        return location == Routes.splash ? null : Routes.splash;
+      case AuthNavigationState.needsLogin:
+      case AuthNavigationState.error:
+        if (_isAuthLocation(location)) return null;
+        return Routes.serverConnection;
+      case AuthNavigationState.authenticated:
+        if (_isAuthLocation(location) || location == Routes.splash) {
+          return Routes.chat;
+        }
+        return null;
+    }
+  }
+
+  bool _isAuthLocation(String location) {
+    return location == Routes.serverConnection ||
+        location == Routes.login ||
+        location == Routes.authentication;
+  }
+
+  @override
+  void dispose() {
+    for (final sub in _subscriptions) {
+      sub.close();
+    }
+    super.dispose();
+  }
+}
+
+final routerNotifierProvider = Provider<RouterNotifier>((ref) {
+  final notifier = RouterNotifier(ref);
+  ref.onDispose(notifier.dispose);
+  return notifier;
+});
+
+final goRouterProvider = Provider<GoRouter>((ref) {
+  final notifier = ref.watch(routerNotifierProvider);
+
+  final routes = <RouteBase>[
+    GoRoute(
+      path: Routes.splash,
+      name: RouteNames.splash,
+      builder: (context, state) => const SplashLauncherPage(),
+    ),
+    GoRoute(
+      path: Routes.chat,
+      name: RouteNames.chat,
+      builder: (context, state) => const ChatPage(),
+    ),
+    GoRoute(
+      path: Routes.login,
+      name: RouteNames.login,
+      builder: (context, state) => const ConnectAndSignInPage(),
+    ),
+    GoRoute(
+      path: Routes.serverConnection,
+      name: RouteNames.serverConnection,
+      builder: (context, state) => const ServerConnectionPage(),
+    ),
+    GoRoute(
+      path: Routes.authentication,
+      name: RouteNames.authentication,
+      builder: (context, state) {
+        final config = state.extra;
+        if (config is! ServerConfig) {
+          return const ServerConnectionPage();
+        }
+        return AuthenticationPage(serverConfig: config);
+      },
+    ),
+    GoRoute(
+      path: Routes.profile,
+      name: RouteNames.profile,
+      builder: (context, state) => const ProfilePage(),
+    ),
+    GoRoute(
+      path: Routes.appCustomization,
+      name: RouteNames.appCustomization,
+      builder: (context, state) => const AppCustomizationPage(),
+    ),
+    GoRoute(
+      path: Routes.workspace,
+      name: RouteNames.workspace,
+      builder: (context, state) => const WorkspacePage(),
+    ),
+  ];
+
+  final router = GoRouter(
+    navigatorKey: NavigationService.navigatorKey,
+    initialLocation: Routes.splash,
+    refreshListenable: notifier,
+    redirect: notifier.redirect,
+    routes: routes,
+    observers: [NavigationLoggingObserver()],
+    errorBuilder: (context, state) {
+      final l10n = AppLocalizations.of(context);
+      final message =
+          l10n?.routeNotFound(state.uri.path) ??
+          'Route not found: ${state.uri.path}';
+      return Scaffold(
+        body: Center(child: Text(message, textAlign: TextAlign.center)),
+      );
+    },
+  );
+
+  NavigationService.attachRouter(router);
+  return router;
+});
+
+class NavigationLoggingObserver extends NavigatorObserver {
+  @override
+  void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) {
+    super.didPush(route, previousRoute);
+    final previous = previousRoute?.settings.name ?? previousRoute?.settings;
+    DebugLogger.navigation(
+      'Pushed: ${route.settings.name ?? route.settings} (from ${previous ?? 'root'})',
+    );
+  }
+
+  @override
+  void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) {
+    super.didPop(route, previousRoute);
+    DebugLogger.navigation('Popped: ${route.settings.name ?? route.settings}');
+  }
+}

lib/core/services/navigation_service.dart

@@ -1,67 +1,70 @@
 import 'package:flutter/material.dart';
-// ThemedDialogs handles theming; no direct use of extensions here
+import 'package:go_router/go_router.dart';
-import '../../features/auth/views/connect_signin_page.dart';
-import '../../features/chat/views/chat_page.dart';
-import '../../features/files/views/workspace_page.dart';
-import '../../features/profile/views/profile_page.dart';
 import '../../shared/widgets/themed_dialogs.dart';
-import 'package:conduit/l10n/app_localizations.dart';
 
-/// Service for handling navigation throughout the app
+/// Service for handling navigation throughout the app.
+///
+/// With GoRouter in place, this class mostly provides convenient wrappers
+/// around the global router so existing callers can trigger navigation
+/// without directly depending on BuildContext.
 class NavigationService {
   static final GlobalKey<NavigatorState> navigatorKey =
-      GlobalKey<NavigatorState>();
+      GlobalKey<NavigatorState>(debugLabel: 'rootNavigator');
+
+  static GoRouter? _router;
+
+  static GoRouter get router {
+    final router = _router;
+    if (router == null) {
+      throw StateError('GoRouter has not been attached to NavigationService.');
+    }
+    return router;
+  }
+
+  static void attachRouter(GoRouter router) {
+    _router = router;
+  }
 
   static NavigatorState? get navigator => navigatorKey.currentState;
   static BuildContext? get context => navigatorKey.currentContext;
 
-  static final List<String> _navigationStack = [];
+  /// The current location reported by GoRouter.
-  static String? _currentRoute;
+  static String? get currentRoute {
+    final router = _router;
+    if (router == null) return null;
+    return router.routeInformationProvider.value.uri.toString();
+  }
 
-  /// Get current route
+  /// Navigate to a specific route path.
-  static String? get currentRoute => _currentRoute;
-
-  /// Get navigation stack
-  static List<String> get navigationStack =>
-      List.unmodifiable(_navigationStack);
-
-  /// Navigate to a specific route
   static Future<void> navigateTo(String routeName) async {
-    if (_currentRoute != routeName) {
+    final router = _router;
-      _navigationStack.add(routeName);
+    if (router == null) return;
-      _currentRoute = routeName;
+    router.go(routeName);
-    }
   }
 
-  /// Navigate back with optional result
+  /// Navigate back with an optional result payload.
   static void goBack<T>([T? result]) {
-    if (navigator?.canPop() == true) {
+    final router = _router;
-      if (_navigationStack.isNotEmpty) {
+    if (router?.canPop() == true) {
-        _navigationStack.removeLast();
+      router!.pop(result);
-      }
-      _currentRoute = _navigationStack.isNotEmpty
-          ? _navigationStack.last
-          : null;
-      navigator?.pop<T>(result);
     }
   }
 
-  /// Check if can navigate back
+  /// Check whether the router can pop the current route.
-  static bool canGoBack() {
+  static bool canGoBack() => _router?.canPop() ?? false;
-    return navigator?.canPop() == true;
-  }
 
-  /// Show confirmation dialog before navigation
+  /// Show confirmation dialog before navigation.
   static Future<bool> confirmNavigation({
     required String title,
     required String message,
     String confirmText = 'Continue',
     String cancelText = 'Cancel',
   }) async {
-    if (context == null) return false;
+    final ctx = context;
+    if (ctx == null) return false;
 
     final result = await ThemedDialogs.confirm(
-      context!,
+      ctx,
       title: title,
       message: message,
       confirmText: confirmText,
@@ -72,95 +75,40 @@ class NavigationService {
     return result;
   }
 
-  /// Navigate to chat
+  static Future<void> navigateToChat() => navigateTo(Routes.chat);
-  static Future<void> navigateToChat() {
+  static Future<void> navigateToLogin() => navigateTo(Routes.serverConnection);
-    return navigateTo(Routes.chat);
+  static Future<void> navigateToProfile() => navigateTo(Routes.profile);
-  }
+  static Future<void> navigateToServerConnection() =>
+      navigateTo(Routes.serverConnection);
 
-  /// Navigate to login
+  /// Clear navigation history. With GoRouter this becomes a simple go call.
-  static Future<void> navigateToLogin() {
-    return navigateTo(Routes.login);
-  }
-
-  /// Navigate to profile
-  static Future<void> navigateToProfile() {
-    return navigateTo(Routes.profile);
-  }
-
-  /// Navigate to server connection
-  static Future<void> navigateToServerConnection() {
-    return navigateTo(Routes.serverConnection);
-  }
-
-  // Chats list is now provided as a left drawer in ChatPage
-
-  /// Clear navigation stack (useful for logout)
   static void clearNavigationStack() {
-    _navigationStack.clear();
+    final router = _router;
-    _currentRoute = null;
+    if (router == null) return;
-  }
+    router.go(Routes.serverConnection);
-
-  /// Set current route (useful for initial app state)
-  static void setCurrentRoute(String routeName) {
-    _currentRoute = routeName;
-    if (!_navigationStack.contains(routeName)) {
-      _navigationStack.add(routeName);
   }
 }
 
-  /// Generate routes
+/// Route path definitions used across the app.
-  static Route<dynamic>? generateRoute(RouteSettings settings) {
-    Widget page;
-
-    switch (settings.name) {
-      // Removed tabbed main navigation
-
-      case Routes.chat:
-        page = const ChatPage();
-        break;
-
-      case Routes.login:
-        page = const ConnectAndSignInPage();
-        break;
-
-      case Routes.profile:
-        page = const ProfilePage();
-        break;
-
-      case Routes.serverConnection:
-        page = const ConnectAndSignInPage();
-        break;
-
-      case Routes.workspace:
-        page = const WorkspacePage();
-        break;
-
-      // chats list route removed (replaced by drawer)
-
-      // Removed navigation drawer route
-
-      default:
-        page = Builder(
-          builder: (context) => Scaffold(
-            body: Center(
-              child: Text(
-                AppLocalizations.of(context)!
-                    .routeNotFound(settings.name ?? ''),
-              ),
-            ),
-          ),
-        );
-    }
-
-    return MaterialPageRoute(builder: (_) => page, settings: settings);
-  }
-}
-
-/// Route names
 class Routes {
+  static const String splash = '/splash';
   static const String chat = '/chat';
   static const String login = '/login';
-  static const String profile = '/profile';
   static const String serverConnection = '/server-connection';
+  static const String authentication = '/authentication';
+  static const String profile = '/profile';
+  static const String appCustomization = '/profile/customization';
   static const String workspace = '/workspace';
 }
+
+/// Friendly names for GoRouter routes to support context.pushNamed.
+class RouteNames {
+  static const String splash = 'splash';
+  static const String chat = 'chat';
+  static const String login = 'login';
+  static const String serverConnection = 'server-connection';
+  static const String authentication = 'authentication';
+  static const String profile = 'profile';
+  static const String appCustomization = 'app-customization';
+  static const String workspace = 'workspace';
+}

lib/core/services/user_friendly_error_handler.dart

@@ -2,6 +2,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:conduit/l10n/app_localizations.dart';
 import '../../shared/theme/theme_extensions.dart';
+import 'navigation_service.dart';
 
 /// User-friendly error messages and recovery actions
 class UserFriendlyErrorHandler {
@@ -483,7 +484,7 @@ class ErrorCard extends StatelessWidget {
         break;
       case ErrorActionType.signIn:
         // Navigate to sign in page
-        Navigator.of(context).pushReplacementNamed('/login');
+        NavigationService.navigateToServerConnection();
         break;
       case ErrorActionType.openSettings:
         // Open app settings - would need platform-specific implementation

lib/features/auth/views/authentication_page.dart

@@ -4,6 +4,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
 
 import '../../../core/models/server_config.dart';
 import '../../../core/providers/app_providers.dart';
@@ -136,10 +137,7 @@ class _AuthenticationPageState extends ConsumerState<AuthenticationPage> {
 
         DebugLogger.auth('Navigating to chat page');
         // Navigate directly to chat page on successful authentication
-        Navigator.of(context).pushNamedAndRemoveUntil(
+        context.go(Routes.chat);
-          Routes.chat,
-          (route) => false, // Remove all previous routes
-        );
       }
     });
 

lib/features/auth/views/connect_signin_page.dart

@@ -1,38 +1,15 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
-import '../../../core/widgets/error_boundary.dart';
-import '../../../shared/theme/theme_extensions.dart';
-import '../../../shared/widgets/conduit_components.dart';
-import 'package:conduit/l10n/app_localizations.dart';
 import 'server_connection_page.dart';
 
-/// Entry point for the connection and sign-in flow
+/// Entry point for the connection and sign-in flow.
-/// Redirects to the mobile-first two-step process
+/// We now forward directly to the server connection experience.
 class ConnectAndSignInPage extends ConsumerWidget {
   const ConnectAndSignInPage({super.key});
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    // Directly navigate to the new mobile-first server connection page
+    return const ServerConnectionPage();
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      Navigator.of(context).pushReplacement(
-        MaterialPageRoute(
-          builder: (_) => const ServerConnectionPage(),
-        ),
-      );
-    });
-
-    // Show a simple loading state while transitioning
-    return ErrorBoundary(
-      child: Scaffold(
-        backgroundColor: context.conduitTheme.surfaceBackground,
-        body: Center(
-          child: ConduitLoadingIndicator(
-            message: AppLocalizations.of(context)!.loadingContent,
-          ),
-        ),
-      ),
-    );
   }
 }

lib/features/auth/views/server_connection_page.dart

@@ -4,6 +4,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
 import 'package:flutter/services.dart';
 import 'package:uuid/uuid.dart';
 import 'package:conduit/l10n/app_localizations.dart';
@@ -12,12 +13,11 @@ import '../../../core/models/server_config.dart';
 import '../../../core/providers/app_providers.dart';
 import '../../../core/services/api_service.dart';
 import '../../../core/services/input_validation_service.dart';
+import '../../../core/services/navigation_service.dart';
 import '../../../core/widgets/error_boundary.dart';
 import '../../../shared/services/brand_service.dart';
 import '../../../shared/theme/theme_extensions.dart';
 import '../../../shared/widgets/conduit_components.dart';
-import '../../chat/views/chat_page.dart';
-import 'authentication_page.dart';
 
 class ServerConnectionPage extends ConsumerStatefulWidget {
   const ServerConnectionPage({super.key});
@@ -88,11 +88,7 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
 
       // Navigate to authentication page
       if (mounted) {
-        Navigator.of(context).push(
+        context.pushNamed(RouteNames.authentication, extra: tempConfig);
-          MaterialPageRoute(
-            builder: (_) => AuthenticationPage(serverConfig: tempConfig),
-          ),
-        );
       }
     } catch (e) {
       setState(() {
@@ -208,7 +204,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
       return cleanError;
     } else if (error.contains('Invalid IP address format')) {
       return cleanError;
-    } else if (error.contains('This does not appear to be an Open-WebUI server')) {
+    } else if (error.contains(
+      'This does not appear to be an Open-WebUI server',
+    )) {
       return AppLocalizations.of(context)!.serverNotOpenWebUI;
     }
 
@@ -340,8 +338,12 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
                   shape: BoxShape.circle,
                   gradient: RadialGradient(
                     colors: [
-                      context.conduitTheme.buttonPrimary.withValues(alpha: 0.12),
+                      context.conduitTheme.buttonPrimary.withValues(
-                      context.conduitTheme.buttonPrimary.withValues(alpha: 0.06),
+                        alpha: 0.12,
+                      ),
+                      context.conduitTheme.buttonPrimary.withValues(
+                        alpha: 0.06,
+                      ),
                       Colors.transparent,
                     ],
                     stops: const [0.0, 0.7, 1.0],
@@ -361,7 +363,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
                   bottom: 0,
                   child: ConduitBadge(
                     text: AppLocalizations.of(context)!.demoBadge,
-                    backgroundColor: context.conduitTheme.warning.withValues(alpha: 0.15),
+                    backgroundColor: context.conduitTheme.warning.withValues(
+                      alpha: 0.15,
+                    ),
                     textColor: context.conduitTheme.warning,
                     isCompact: true,
                   ),
@@ -448,11 +452,7 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
             text: AppLocalizations.of(context)!.enterDemo,
             icon: Platform.isIOS ? CupertinoIcons.play_fill : Icons.play_arrow,
             onPressed: () {
-              Navigator.of(context).push(
+              context.go(Routes.chat);
-                MaterialPageRoute(
-                  builder: (_) => const ChatPage(),
-                ),
-              );
             },
             isSecondary: true,
             isFullWidth: true,
@@ -475,7 +475,8 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
             controller: _urlController,
             validator: InputValidationService.combine([
               InputValidationService.validateRequired,
-              (value) => InputValidationService.validateUrl(value, required: true),
+              (value) =>
+                  InputValidationService.validateUrl(value, required: true),
             ]),
             keyboardType: TextInputType.url,
             semanticLabel: AppLocalizations.of(context)!.enterServerUrlSemantic,
@@ -516,7 +517,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
           child: Column(
             children: [
               InkWell(
-                onTap: () => setState(() => _showAdvancedSettings = !_showAdvancedSettings),
+                onTap: () => setState(
+                  () => _showAdvancedSettings = !_showAdvancedSettings,
+                ),
                 borderRadius: BorderRadius.circular(AppBorderRadius.button),
                 child: Padding(
                   padding: const EdgeInsets.symmetric(vertical: Spacing.sm),
@@ -552,7 +555,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
                         duration: AnimationDuration.microInteraction,
                         turns: _showAdvancedSettings ? 0.5 : 0,
                         child: Icon(
-                          Platform.isIOS ? CupertinoIcons.chevron_down : Icons.expand_more,
+                          Platform.isIOS
+                              ? CupertinoIcons.chevron_down
+                              : Icons.expand_more,
                           color: context.conduitTheme.iconSecondary,
                         ),
                       ),
@@ -563,7 +568,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
               AnimatedSize(
                 duration: AnimationDuration.microInteraction,
                 curve: Curves.easeInOutCubic,
-                child: _showAdvancedSettings ? _buildAdvancedSettingsContent() : const SizedBox.shrink(),
+                child: _showAdvancedSettings
+                    ? _buildAdvancedSettingsContent()
+                    : const SizedBox.shrink(),
               ),
             ],
           ),
@@ -679,8 +686,8 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
                 fit: FlexFit.loose,
                 child: ConduitBadge(
                   text: entry.key,
-                  backgroundColor:
+                  backgroundColor: context.conduitTheme.buttonPrimary
-                      context.conduitTheme.buttonPrimary.withValues(alpha: 0.1),
+                      .withValues(alpha: 0.1),
                   textColor: context.conduitTheme.buttonPrimary,
                   isCompact: true,
                   maxLines: 1,
@@ -704,7 +711,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
                 icon: Platform.isIOS ? CupertinoIcons.xmark : Icons.close,
                 onPressed: () => _removeCustomHeader(entry.key),
                 tooltip: AppLocalizations.of(context)!.removeHeader,
-                backgroundColor: context.conduitTheme.error.withValues(alpha: 0.1),
+                backgroundColor: context.conduitTheme.error.withValues(
+                  alpha: 0.1,
+                ),
                 iconColor: context.conduitTheme.error,
                 isCompact: true,
               ),
@@ -718,13 +727,16 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
   Widget _buildConnectButton() {
     return Padding(
       padding: const EdgeInsets.only(top: Spacing.lg),
-      child: ConduitButton(
+      child:
+          ConduitButton(
             text: _isConnecting
                 ? AppLocalizations.of(context)!.connecting
                 : AppLocalizations.of(context)!.connectToServerButton,
             icon: _isConnecting
                 ? null
-            : (Platform.isIOS ? CupertinoIcons.arrow_right : Icons.arrow_forward),
+                : (Platform.isIOS
+                      ? CupertinoIcons.arrow_right
+                      : Icons.arrow_forward),
             onPressed: _isConnecting ? null : _connectToServer,
             isLoading: _isConnecting,
             isFullWidth: true,
@@ -826,9 +838,18 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
     // Check for reserved headers that should not be overridden
     final lowerKey = key.toLowerCase();
     final reservedHeaders = {
-      'authorization', 'content-type', 'content-length', 'host',
+      'authorization',
-      'user-agent', 'accept', 'accept-encoding', 'connection',
+      'content-type',
-      'transfer-encoding', 'upgrade', 'via', 'warning'
+      'content-length',
+      'host',
+      'user-agent',
+      'accept',
+      'accept-encoding',
+      'connection',
+      'transfer-encoding',
+      'upgrade',
+      'via',
+      'warning',
     };
 
     if (reservedHeaders.contains(lowerKey)) {
@@ -840,7 +861,9 @@ class _ServerConnectionPageState extends ConsumerState<ServerConnectionPage> {
 
   String? _validateHeaderValue(String value) {
     if (value.isEmpty) return AppLocalizations.of(context)!.headerValueEmpty;
-    if (value.length > 1024) return AppLocalizations.of(context)!.headerValueTooLong;
+    if (value.length > 1024) {
+      return AppLocalizations.of(context)!.headerValueTooLong;
+    }
 
     // Check for valid characters (no control characters except tab)
     for (int i = 0; i < value.length; i++) {

lib/features/navigation/widgets/chats_drawer.dart

@@ -5,13 +5,14 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
 
 import '../../../core/providers/app_providers.dart';
 import '../../../shared/theme/theme_extensions.dart';
 import '../../chat/providers/chat_providers.dart' as chat;
 // import '../../files/views/files_page.dart';
-import '../../profile/views/profile_page.dart';
 import '../../../shared/utils/ui_utils.dart';
+import '../../../core/services/navigation_service.dart';
 import '../../../shared/widgets/themed_dialogs.dart';
 import '../../../core/auth/auth_state_manager.dart';
 import 'package:conduit/l10n/app_localizations.dart';
@@ -1190,11 +1191,12 @@ class _ChatsDrawerState extends ConsumerState<ChatsDrawer> {
         container.read(activeConversationProvider.notifier).set(full);
       } else {
         // Fallback: use the lightweight item to update the active conversation
-        container.read(activeConversationProvider.notifier).set(
+        container
+            .read(activeConversationProvider.notifier)
+            .set(
               (await container.read(
                 conversationsProvider.future,
-              ))
+              )).firstWhere((c) => c.id == id),
-                  .firstWhere((c) => c.id == id),
             );
       }
 
@@ -1292,9 +1294,7 @@ class _ChatsDrawerState extends ConsumerState<ChatsDrawer> {
                     tooltip: AppLocalizations.of(context)!.manage,
                     onPressed: () {
                       Navigator.of(context).maybePop();
-                      Navigator.of(context).push(
+                      context.pushNamed(RouteNames.profile);
-                        MaterialPageRoute(builder: (_) => const ProfilePage()),
-                      );
                     },
                     icon: Icon(
                       Platform.isIOS

lib/features/profile/views/profile_page.dart

@@ -4,6 +4,7 @@ import '../../../shared/theme/theme_extensions.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_animate/flutter_animate.dart';
+import 'package:go_router/go_router.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 import 'package:conduit/l10n/app_localizations.dart';
@@ -15,6 +16,7 @@ import '../../../shared/widgets/themed_dialogs.dart';
 import '../../../shared/widgets/sheet_handle.dart';
 import '../../../shared/widgets/conduit_components.dart';
 import '../../../core/providers/app_providers.dart';
+import '../../../core/services/navigation_service.dart';
 import '../../auth/providers/unified_auth_providers.dart';
 import '../../../core/services/settings_service.dart';
 import '../../../core/models/model.dart';
@@ -23,7 +25,6 @@ import '../../../core/models/user.dart' as models;
 import 'dart:async';
 import 'dart:io';
 import '../../chat/views/chat_page_helpers.dart';
-import 'app_customization_page.dart';
 import '../../../shared/widgets/modal_safe_area.dart';
 import '../../../core/utils/user_display_name.dart';
 import '../../../core/utils/user_avatar_utils.dart';
@@ -338,9 +339,7 @@ class ProfilePage extends ConsumerWidget {
         title: AppLocalizations.of(context)!.appCustomization,
         subtitle: AppLocalizations.of(context)!.appCustomizationSubtitle,
         onTap: () {
-          Navigator.of(context).push(
+          context.pushNamed(RouteNames.appCustomization);
-            MaterialPageRoute(builder: (_) => const AppCustomizationPage()),
-          );
         },
       ),
       _buildAboutTile(context),

lib/main.dart

@@ -1,25 +1,23 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'core/services/navigation_service.dart';
 import 'core/widgets/error_boundary.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import 'core/providers/app_providers.dart';
+import 'core/router/app_router.dart';
 import 'shared/theme/app_theme.dart';
 import 'shared/theme/theme_extensions.dart';
 import 'shared/widgets/offline_indicator.dart';
-import 'features/auth/views/connect_signin_page.dart';
 import 'features/auth/providers/unified_auth_providers.dart';
 import 'core/auth/auth_state_manager.dart';
 import 'core/utils/debug_logger.dart';
 
 import 'package:conduit/l10n/app_localizations.dart';
-import 'features/chat/views/chat_page.dart';
-import 'features/navigation/views/splash_launcher_page.dart';
 import 'core/services/share_receiver_service.dart';
 import 'core/providers/app_startup_providers.dart';
+import 'core/models/server_config.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -64,46 +62,97 @@ class ConduitApp extends ConsumerStatefulWidget {
 
 class _ConduitAppState extends ConsumerState<ConduitApp> {
   bool _attemptedSilentAutoLogin = false;
+  ProviderSubscription<AuthNavigationState>? _authNavSubscription;
+  ProviderSubscription<AsyncValue<ServerConfig?>>? _activeServerSubscription;
   @override
   void initState() {
     super.initState();
     // Defer heavy provider initialization to after first frame to render UI sooner
     WidgetsBinding.instance.addPostFrameCallback((_) => _initializeAppState());
-  }
 
-  Widget _buildInitialLoadingSkeleton(BuildContext context) {
+    _authNavSubscription = ref.listenManual<AuthNavigationState>(
-    // Replace skeleton with branded splash during initialization
+      authNavigationStateProvider,
-    return const SplashLauncherPage();
+      (previous, next) {
+        if (next == AuthNavigationState.needsLogin) {
+          _maybeAttemptSilentLogin();
+        } else {
+          _attemptedSilentAutoLogin = false;
+        }
+      },
+    );
+
+    _activeServerSubscription = ref.listenManual<AsyncValue<ServerConfig?>>(
+      activeServerProvider,
+      (previous, next) {
+        next.when(
+          data: (server) {
+            if (server != null) {
+              _maybeAttemptSilentLogin();
+            }
+          },
+          loading: () {},
+          error: (error, stackTrace) {},
+        );
+      },
+    );
+
+    Future.microtask(_maybeAttemptSilentLogin);
   }
 
   void _initializeAppState() {
-    // Initialize unified auth state manager and API integration synchronously
-    // This ensures auth state is loaded before first widget build
     DebugLogger.auth('Initializing unified auth system');
 
-    // Initialize auth state manager (will handle token validation automatically)
     ref.read(authStateManagerProvider);
-
-    // Ensure API service auth integration is active
     ref.read(authApiIntegrationProvider);
-
-    // Initialize auto-selection listener for default model changes in settings
     ref.read(defaultModelAutoSelectionProvider);
-
-    // Initialize OS share receiver so users can share text/files to Conduit
     ref.read(shareReceiverInitializerProvider);
   }
 
+  @override
+  void dispose() {
+    _authNavSubscription?.close();
+    _activeServerSubscription?.close();
+    super.dispose();
+  }
+
+  void _maybeAttemptSilentLogin() {
+    if (_attemptedSilentAutoLogin) return;
+
+    final authState = ref.read(authNavigationStateProvider);
+    if (authState != AuthNavigationState.needsLogin) {
+      return;
+    }
+
+    final activeServerAsync = ref.read(activeServerProvider);
+    final hasActiveServer = activeServerAsync.maybeWhen(
+      data: (server) => server != null,
+      orElse: () => false,
+    );
+
+    if (!hasActiveServer) {
+      return;
+    }
+
+    _attemptedSilentAutoLogin = true;
+
+    Future.microtask(() async {
+      try {
+        final hasCreds = await ref.read(hasSavedCredentialsProvider2.future);
+        if (hasCreds) {
+          await ref.read(authActionsProvider).silentLogin();
+        }
+      } catch (_) {
+        // Ignore silent login errors; fall back to manual login.
+      }
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
-    // Use select to watch only the specific themeMode property to reduce rebuilds
     final themeMode = ref.watch(themeModeProvider.select((mode) => mode));
+    final router = ref.watch(goRouterProvider);
+    ref.watch(appStartupFlowProvider);
 
-    // Reduced debug noise - only log when necessary
-    // debugPrint('DEBUG: Building app');
-
-    // Determine the current theme based on themeMode
-    // Default to Conduit brand theme globally
     final currentTheme = themeMode == ThemeMode.dark
         ? AppTheme.conduitDarkTheme
         : themeMode == ThemeMode.light
@@ -118,18 +167,18 @@ class _ConduitAppState extends ConsumerState<ConduitApp> {
       theme: currentTheme,
       duration: AnimationDuration.medium,
       child: ErrorBoundary(
-        child: MaterialApp(
+        child: MaterialApp.router(
+          routerConfig: router,
           onGenerateTitle: (context) => AppLocalizations.of(context)!.appTitle,
           theme: AppTheme.conduitLightTheme,
           darkTheme: AppTheme.conduitDarkTheme,
           themeMode: themeMode,
           debugShowCheckedModeBanner: false,
-          navigatorKey: NavigationService.navigatorKey,
           locale: locale,
           localizationsDelegates: AppLocalizations.localizationsDelegates,
           supportedLocales: AppLocalizations.supportedLocales,
           localeListResolutionCallback: (deviceLocales, supported) {
-            if (locale != null) return locale; // User override wins
+            if (locale != null) return locale;
             if (deviceLocales == null || deviceLocales.isEmpty) {
               return supported.first;
             }
@@ -141,161 +190,19 @@ class _ConduitAppState extends ConsumerState<ConduitApp> {
             return supported.first;
           },
           builder: (context, child) {
-            // Apply edge-to-edge inset handling and responsive design
+            final mediaQuery = MediaQuery.of(context);
             return MediaQuery(
-              data: MediaQuery.of(context).copyWith(
+              data: mediaQuery.copyWith(
-                // Ensure proper text scaling for edge-to-edge
+                textScaler: mediaQuery.textScaler.clamp(
-                textScaler: MediaQuery.of(
+                  minScaleFactor: 0.8,
-                  context,
+                  maxScaleFactor: 1.3,
-                ).textScaler.clamp(minScaleFactor: 0.8, maxScaleFactor: 1.3),
+                ),
               ),
               child: OfflineIndicator(child: child ?? const SizedBox.shrink()),
             );
           },
-          home: _getInitialPageWithReactiveState(),
-          onGenerateRoute: NavigationService.generateRoute,
-          navigatorObservers: [_NavigationObserver()],
         ),
       ),
     );
   }
-
-  Widget _getInitialPageWithReactiveState() {
-    return Consumer(
-      builder: (context, ref, child) {
-        // Watch for server connection state changes
-        final activeServerAsync = ref.watch(activeServerProvider);
-        final reviewerMode = ref.watch(reviewerModeProvider);
-
-        if (reviewerMode) {
-          // In reviewer mode, skip server/auth flows and go to chat
-          NavigationService.setCurrentRoute(Routes.chat);
-          return const ChatPage();
-        }
-
-        return activeServerAsync.when(
-          data: (activeServer) {
-            if (activeServer == null) {
-              return const ConnectAndSignInPage();
-            }
-
-            // Server is connected, now check authentication reactively
-            final authNavState = ref.watch(authNavigationStateProvider);
-
-            if (authNavState == AuthNavigationState.needsLogin) {
-              // Try one-shot silent login if credentials are saved
-              if (!_attemptedSilentAutoLogin) {
-                _attemptedSilentAutoLogin = true;
-                Future.microtask(() async {
-                  try {
-                    final hasCreds = await ref.read(
-                      hasSavedCredentialsProvider2.future,
-                    );
-                    if (hasCreds) {
-                      await ref.read(authActionsProvider).silentLogin();
-                    }
-                  } catch (_) {
-                    // Ignore errors, fallback to showing unified page
-                  }
-                });
-              }
-              return const ConnectAndSignInPage();
-            }
-
-            if (authNavState == AuthNavigationState.loading) {
-              return _buildInitialLoadingSkeleton(context);
-            }
-
-            if (authNavState == AuthNavigationState.error) {
-              return _buildErrorState(
-                ref.watch(authErrorProvider3) ??
-                    AppLocalizations.of(context)!.errorMessage,
-              );
-            }
-
-            // User is authenticated, navigate directly to chat page
-            // Kick off and keep app startup/background task flow alive
-            ref.watch(appStartupFlowProvider);
-
-            // Set the current route for navigation tracking
-            NavigationService.setCurrentRoute(Routes.chat);
-
-            return const ChatPage();
-          },
-          loading: () => _buildInitialLoadingSkeleton(context),
-          error: (error, stackTrace) {
-            DebugLogger.error('Server provider error', error);
-            return _buildErrorState(
-              AppLocalizations.of(context)!.unableToConnectServer,
-            );
-          },
-        );
-      },
-    );
-  }
-
-  // Background initialization moved to app-based task flow provider
-
-  Widget _buildErrorState(String error) {
-    return Scaffold(
-      backgroundColor: context.conduitTheme.surfaceBackground,
-      body: Center(
-        child: Padding(
-          padding: const EdgeInsets.all(Spacing.lg),
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: [
-              Icon(
-                Icons.error_outline,
-                size: IconSize.xxl + Spacing.md,
-                color: context.conduitTheme.error,
-              ),
-              const SizedBox(height: Spacing.md),
-              Text(
-                AppLocalizations.of(context)!.initializationFailed,
-                style: TextStyle(
-                  fontSize: AppTypography.headlineLarge,
-                  fontWeight: FontWeight.bold,
-                  color: context.conduitTheme.textPrimary,
-                ),
-              ),
-              const SizedBox(height: Spacing.sm),
-              Text(
-                error,
-                style: TextStyle(color: context.conduitTheme.textSecondary),
-                textAlign: TextAlign.center,
-              ),
-              const SizedBox(height: Spacing.lg),
-              ElevatedButton(
-                onPressed: () {
-                  // Restart the app
-                  WidgetsBinding.instance.reassembleApplication();
-                },
-                style: ElevatedButton.styleFrom(
-                  backgroundColor: context.conduitTheme.buttonPrimary,
-                  foregroundColor: context.conduitTheme.buttonPrimaryText,
-                ),
-                child: Text(AppLocalizations.of(context)!.retry),
-              ),
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-}
-
-class _NavigationObserver extends NavigatorObserver {
-  @override
-  void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) {
-    super.didPush(route, previousRoute);
-    // Log navigation for debugging and analytics
-    DebugLogger.navigation('Pushed: ${route.settings.name}');
-  }
-
-  @override
-  void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) {
-    super.didPop(route, previousRoute);
-    DebugLogger.navigation('Popped: ${route.settings.name}');
-  }
 }

pubspec.lock

@@ -517,6 +517,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
+  go_router:
+    dependency: "direct main"
+    description:
+      name: go_router
+      sha256: f02fd7d2a4dc512fec615529824fdd217fecb3a3d3de68360293a551f21634b3
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.8.1"
   graphs:
     dependency: transitive
     description:

pubspec.yaml

@@ -15,6 +15,9 @@ dependencies:
   # State Management
   flutter_riverpod: ^3.0.0
   
+  # Navigation
+  go_router: ^14.2.0
+  
   # Network & API
   dio: ^5.9.0
   http_parser: ^4.0.2