Fix compilation errors in followers/following and privacy screens

- Fix FollowersFollowingScreen: correct imports, AppTheme references, SignedMediaImage param
- Fix profile_screen.dart: move _navigateToConnections to _ProfileScreenState, pass callback to _ProfileHeader
- Fix profile_settings_screen.dart: update property names (isPrivate, defaultVisibility)

sojorn_app/lib/screens/profile/followers_following_screen.dart

@@ -3,7 +3,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../../theme/app_theme.dart';
 import '../../widgets/app_scaffold.dart';
 import '../../widgets/media/signed_media_image.dart';
-import '../../services/api_service.dart';
+import '../../providers/api_provider.dart';
 import 'viewable_profile_screen.dart';
 
 /// Screen to manage followers and following with tabbed interface
@@ -156,17 +156,16 @@ class _FollowersFollowingScreenState
   Widget build(BuildContext context) {
     return AppScaffold(
       title: 'Connections',
-      showBackButton: true,
       body: Column(
         children: [
           // Tab Bar
           Container(
-            color: AppTheme.surfaceColor,
+            color: AppTheme.cardSurface,
             child: TabBar(
               controller: _tabController,
-              indicatorColor: AppTheme.primaryColor,
+              indicatorColor: AppTheme.ksuPurple,
-              labelColor: AppTheme.textPrimary,
+              labelColor: AppTheme.navyText,
-              unselectedLabelColor: AppTheme.textSecondary,
+              unselectedLabelColor: AppTheme.navyText.withOpacity(0.5),
               tabs: [
                 Tab(text: 'Followers (${_followers.length})'),
                 Tab(text: 'Following (${_following.length})'),
@@ -217,7 +216,7 @@ class _FollowersFollowingScreenState
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
-            Icon(Icons.error_outline, size: 48, color: AppTheme.textSecondary),
+            Icon(Icons.error_outline, size: 48, color: AppTheme.navyText.withOpacity(0.5)),
             const SizedBox(height: 16),
             Text('Failed to load', style: AppTheme.bodyLarge),
             const SizedBox(height: 8),
@@ -238,12 +237,12 @@ class _FollowersFollowingScreenState
             Icon(
               isFollowersList ? Icons.people_outline : Icons.person_add_outlined,
               size: 64,
-              color: AppTheme.textSecondary.withOpacity(0.5),
+              color: AppTheme.navyText.withOpacity(0.3),
             ),
             const SizedBox(height: 16),
             Text(
               isFollowersList ? 'No followers yet' : 'Not following anyone yet',
-              style: AppTheme.bodyLarge.copyWith(color: AppTheme.textSecondary),
+              style: AppTheme.bodyLarge.copyWith(color: AppTheme.navyText.withOpacity(0.6)),
             ),
           ],
         ),
@@ -343,7 +342,7 @@ class _UserListTile extends StatelessWidget {
       case 'bronze':
         return const Color(0xFFCD7F32);
       default:
-        return AppTheme.textSecondary;
+        return AppTheme.navyText.withOpacity(0.5);
     }
   }
 
@@ -354,11 +353,11 @@ class _UserListTile extends StatelessWidget {
       contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
       leading: CircleAvatar(
         radius: 24,
-        backgroundColor: AppTheme.surfaceColor,
+        backgroundColor: AppTheme.cardSurface,
         child: user.avatarUrl != null
             ? ClipOval(
                 child: SignedMediaImage(
-                  imageUrl: user.avatarUrl!,
+                  url: user.avatarUrl!,
                   width: 48,
                   height: 48,
                   fit: BoxFit.cover,
@@ -400,14 +399,14 @@ class _UserListTile extends StatelessWidget {
       ),
       subtitle: Text(
         '@${user.handle}',
-        style: AppTheme.bodySmall.copyWith(color: AppTheme.textSecondary),
+        style: AppTheme.labelSmall.copyWith(color: AppTheme.navyText.withOpacity(0.6)),
       ),
       trailing: isFollowersList
           ? null // Followers don't have action button for now
           : TextButton(
               onPressed: onAction,
               style: TextButton.styleFrom(
-                foregroundColor: AppTheme.textSecondary,
+                foregroundColor: AppTheme.navyText.withOpacity(0.7),
                 padding: const EdgeInsets.symmetric(horizontal: 12),
               ),
               child: const Text('Unfollow'),

sojorn_app/lib/screens/profile/profile_screen.dart

@@ -807,6 +807,18 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen>
     );
   }
 
+  void _navigateToConnections(int tabIndex) {
+    if (_profile == null) return;
+    Navigator.of(context).push(
+      MaterialPageRoute(
+        builder: (context) => FollowersFollowingScreen(
+          userId: _profile!.id,
+          initialTabIndex: tabIndex,
+        ),
+      ),
+    );
+  }
+
   Widget _buildSliverAppBar(Profile profile) {
     return SliverAppBar(
       expandedHeight: 255,
@@ -823,6 +835,7 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen>
           onSettingsTap: _openSettings,
           onPrivacyTap: _openPrivacyMenu,
           onAvatarTap: _showAvatarActions,
+          onConnectionsTap: _navigateToConnections,
         ),
       ),
     );
@@ -951,6 +964,7 @@ class _ProfileHeader extends StatelessWidget {
   final VoidCallback onSettingsTap;
   final VoidCallback onPrivacyTap;
   final VoidCallback onAvatarTap;
+  final void Function(int tabIndex) onConnectionsTap;
 
   const _ProfileHeader({
     required this.profile,
@@ -958,6 +972,7 @@ class _ProfileHeader extends StatelessWidget {
     required this.onSettingsTap,
     required this.onPrivacyTap,
     required this.onAvatarTap,
+    required this.onConnectionsTap,
   });
 
   @override
@@ -1090,13 +1105,13 @@ class _ProfileHeader extends StatelessWidget {
             _StatItem(
               label: 'Followers',
               value: stats.followers.toString(),
-              onTap: () => _navigateToConnections(0),
+              onTap: () => onConnectionsTap(0),
             ),
             const SizedBox(width: AppTheme.spacingMd),
             _StatItem(
               label: 'Following',
               value: stats.following.toString(),
-              onTap: () => _navigateToConnections(1),
+              onTap: () => onConnectionsTap(1),
             ),
           ],
         ),
@@ -1104,17 +1119,7 @@ class _ProfileHeader extends StatelessWidget {
     );
   }
 
-  void _navigateToConnections(int tabIndex) {
+
-    if (_profile == null) return;
-    Navigator.of(context).push(
-      MaterialPageRoute(
-        builder: (context) => FollowersFollowingScreen(
-          userId: _profile!.id,
-          initialTabIndex: tabIndex,
-        ),
-      ),
-    );
-  }
 
   LinearGradient _generateGradient(String seed) {
     final hash = seed.hashCode.abs();

sojorn_app/lib/screens/profile/profile_settings_screen.dart

@@ -423,8 +423,8 @@ class _ProfileSettingsScreenState extends ConsumerState<ProfileSettingsScreen> {
             SwitchListTile(
               title: const Text('Private Profile'),
               subtitle: const Text('Only followers can see your posts and activity'),
-              value: privacy.isPrivateProfile,
+              value: privacy.isPrivate,
-              onChanged: (v) => ref.read(settingsProvider.notifier).updatePrivacy(privacy.copyWith(isPrivateProfile: v)),
+              onChanged: (v) => ref.read(settingsProvider.notifier).updatePrivacy(privacy.copyWith(isPrivate: v)),
             ),
             const SizedBox(height: 32),
             const Text('Default Post Visibility', style: TextStyle(fontWeight: FontWeight.bold)),
@@ -435,8 +435,8 @@ class _ProfileSettingsScreenState extends ConsumerState<ProfileSettingsScreen> {
                 ButtonSegment(value: 'followers', label: Text('Circle')),
                 ButtonSegment(value: 'private', label: Text('Self')),
               ],
-              selected: {privacy.defaultPostVisibility},
+              selected: {privacy.defaultVisibility},
-              onSelectionChanged: (set) => ref.read(settingsProvider.notifier).updatePrivacy(privacy.copyWith(defaultPostVisibility: set.first)),
+              onSelectionChanged: (set) => ref.read(settingsProvider.notifier).updatePrivacy(privacy.copyWith(defaultVisibility: set.first)),
             ),
             const SizedBox(height: 48),
           ],