Keep original bottom nav, navigate search/notifications inside shell with Threads-style top bar

sojorn_app/lib/routes/app_routes.dart

@@ -21,6 +21,7 @@ import '../screens/discover/discover_screen.dart';
 import '../screens/secure_chat/secure_chat_full_screen.dart';
 import '../screens/secure_chat/secure_chat_loader_screen.dart';
 import '../screens/post/threaded_conversation_screen.dart';
+import '../screens/notifications/notifications_screen.dart';
 
 /// App routing config (GoRouter).
 class AppRoutes {
@@ -93,6 +94,16 @@ class AppRoutes {
               GoRoute(
                 path: homeAlias,
                 builder: (_, __) => const FeedPersonalScreen(),
+                routes: [
+                  GoRoute(
+                    path: 'notifications',
+                    builder: (_, __) => const NotificationsScreen(),
+                  ),
+                  GoRoute(
+                    path: 'discover',
+                    builder: (_, __) => const DiscoverScreen(),
+                  ),
+                ],
               ),
             ],
           ),

sojorn_app/lib/screens/home/home_shell.dart

@@ -256,13 +256,7 @@ class _HomeShellState extends ConsumerState<HomeShell> with WidgetsBindingObserv
         IconButton(
           icon: Icon(Icons.search, color: AppTheme.navyBlue),
           tooltip: 'Discover',
-          onPressed: () {
+          onPressed: () => context.go('/home/discover'),
-            Navigator.of(context).push(
-              MaterialPageRoute(
-                builder: (_) => const DiscoverScreen(),
-              ),
-            );
-          },
         ),
         IconButton(
           icon: Consumer(
@@ -299,13 +293,7 @@ class _HomeShellState extends ConsumerState<HomeShell> with WidgetsBindingObserv
             },
           ),
           tooltip: 'Notifications',
-          onPressed: () {
+          onPressed: () => context.go('/home/notifications'),
-            Navigator.of(context).push(
-              MaterialPageRoute(
-                builder: (_) => const NotificationsScreen(),
-              ),
-            );
-          },
         ),
         const SizedBox(width: 4),
       ],

sojorn_app/lib/screens/notifications/notifications_screen.dart

@@ -6,13 +6,9 @@ import 'package:timeago/timeago.dart' as timeago;
 import '../../models/notification.dart';
 import '../../providers/api_provider.dart';
 import '../../theme/app_theme.dart';
-import '../../widgets/app_scaffold.dart';
 import '../../widgets/media/signed_media_image.dart';
 import '../profile/viewable_profile_screen.dart';
 import '../post/post_detail_screen.dart';
-import '../search/search_screen.dart';
-import '../discover/discover_screen.dart';
-import '../secure_chat/secure_chat_full_screen.dart';
 import 'package:go_router/go_router.dart';
 import '../../services/notification_service.dart';
 
@@ -352,35 +348,33 @@ class _NotificationsScreenState extends ConsumerState<NotificationsScreen> {
     }
   }
 
-  void _navigateHome() {
-    Navigator.of(context).pop();
-  }
-
-  void _navigateSearch() {
-    Navigator.of(context).pushReplacement(
-      MaterialPageRoute(builder: (_) => const DiscoverScreen()),
-    );
-  }
-
-  void _navigateChat() {
-    Navigator.of(context).pushReplacement(
-      MaterialPageRoute(
-        builder: (_) => const SecureChatFullScreen(),
-        fullscreenDialog: true,
-      ),
-    );
-  }
-
   @override
   Widget build(BuildContext context) {
     final canArchiveAll = _activeTabIndex == 0 && _notifications.isNotEmpty;
 
     return DefaultTabController(
       length: 2,
-      child: AppScaffold(
+      child: Scaffold(
-        title: 'Activity',
+        backgroundColor: AppTheme.scaffoldBg,
-        leading: const SizedBox.shrink(),
+        body: SafeArea(
-        actions: [
+          child: Column(
+            children: [
+              // Threads-style top bar
+              Padding(
+                padding: const EdgeInsets.only(left: 4, right: 8, top: 4),
+                child: Row(
+                  children: [
+                    IconButton(
+                      icon: Icon(Icons.arrow_back, color: AppTheme.navyBlue),
+                      onPressed: () => context.go('/home'),
+                    ),
+                    Text(
+                      'Activity',
+                      style: AppTheme.textTheme.headlineSmall?.copyWith(
+                        fontWeight: FontWeight.bold,
+                      ),
+                    ),
+                    const Spacer(),
                     if (canArchiveAll)
                       TextButton(
                         onPressed: _archiveAllNotifications,
@@ -393,7 +387,10 @@ class _NotificationsScreenState extends ConsumerState<NotificationsScreen> {
                         ),
                       ),
                   ],
-        bottom: TabBar(
+                ),
+              ),
+              // Filter tabs
+              TabBar(
                 onTap: (index) {
                   if (index != _activeTabIndex) {
                     setState(() {
@@ -410,8 +407,9 @@ class _NotificationsScreenState extends ConsumerState<NotificationsScreen> {
                   Tab(text: 'Archived'),
                 ],
               ),
-        bottomNavigationBar: _buildBottomNav(),
+              // Content
-        body: _error != null
+              Expanded(
+                child: _error != null
             ? _ErrorState(
                 message: _error!,
                 onRetry: () => _loadNotifications(refresh: true),
@@ -486,88 +484,12 @@ class _NotificationsScreenState extends ConsumerState<NotificationsScreen> {
                     ),
                   ),
               ),
-    );
-  }
-
-  Widget _buildBottomNav() {
-    return Container(
-      decoration: BoxDecoration(
-        color: AppTheme.scaffoldBg,
-        border: Border(
-          top: BorderSide(
-            color: AppTheme.egyptianBlue.withOpacity(0.1),
-            width: 0.5,
-          ),
-        ),
-      ),
-      child: SafeArea(
-        top: false,
-        child: Padding(
-          padding: const EdgeInsets.symmetric(vertical: 8),
-          child: Row(
-            mainAxisAlignment: MainAxisAlignment.spaceAround,
-            children: [
-              _buildNavItem(
-                icon: Icons.home_outlined,
-                label: 'Home',
-                onTap: _navigateHome,
-              ),
-              _buildNavItem(
-                icon: Icons.search,
-                label: 'Discover',
-                onTap: _navigateSearch,
-              ),
-              _buildNavItem(
-                icon: Icons.notifications,
-                label: 'Activity',
-                isActive: true,
-                onTap: () {},
-              ),
-              _buildNavItem(
-                icon: Icons.chat_bubble_outline,
-                label: 'Chat',
-                onTap: _navigateChat,
-              ),
             ],
           ),
         ),
       ),
     );
   }
-
-  Widget _buildNavItem({
-    required IconData icon,
-    required String label,
-    required VoidCallback onTap,
-    bool isActive = false,
-  }) {
-    return InkWell(
-      onTap: onTap,
-      borderRadius: BorderRadius.circular(12),
-      child: Padding(
-        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: [
-            Icon(
-              icon,
-              color: isActive ? AppTheme.navyBlue : Colors.grey,
-              size: 26,
-            ),
-            const SizedBox(height: 2),
-            Text(
-              label,
-              style: TextStyle(
-                fontSize: 10,
-                color: isActive ? AppTheme.navyBlue : Colors.grey,
-                fontWeight: isActive ? FontWeight.w600 : FontWeight.normal,
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
 }
 
 /// Individual notification item widget