feat(knowledge): wire 4-tab shell, retire LibraryScreen, complete Knowledge View feature

lib/app.dart

@@ -17,11 +17,13 @@ import 'providers/update_provider.dart';
 import 'providers/tasks_provider.dart';
 import 'screens/auth/login_screen.dart';
 import 'screens/briefing/briefing_screen.dart';
+import 'screens/knowledge/knowledge_screen.dart';
 import 'screens/library/project_tasks_screen.dart';
 import 'screens/chat/chat_screen.dart';
 import 'screens/chat/conversations_tab_screen.dart';
-import 'screens/library/library_screen.dart';
 import 'screens/notes/note_detail_screen.dart';
+import 'screens/projects/project_edit_screen.dart';
+import 'screens/projects/projects_screen.dart';
 import 'screens/notes/note_edit_screen.dart';
 import 'screens/settings/settings_screen.dart';
 import 'screens/setup/setup_screen.dart';
@@ -82,7 +84,10 @@ final routerProvider = Provider<GoRouter>((ref) {
       ),
       GoRoute(
         path: Routes.noteNew,
-        builder: (_, _) => const NoteEditScreen(),
+        builder: (_, state) {
+          final extra = state.extra as Map<String, dynamic>?;
+          return NoteEditScreen(noteType: extra?['noteType'] as String?);
+        },
       ),
       GoRoute(
         path: Routes.noteDetail,
@@ -116,6 +121,16 @@ final routerProvider = Provider<GoRouter>((ref) {
           projectId: int.parse(state.pathParameters['id']!),
         ),
       ),
+      GoRoute(
+        path: '/projects/new',
+        builder: (_, _) => const ProjectEditScreen(),
+      ),
+      GoRoute(
+        path: Routes.projectEdit,
+        builder: (_, state) => ProjectEditScreen(
+          projectId: int.parse(state.pathParameters['id']!),
+        ),
+      ),
       GoRoute(
         path: Routes.chat,
         builder: (_, state) => ChatScreen(
@@ -130,13 +145,17 @@ final routerProvider = Provider<GoRouter>((ref) {
             builder: (_, _) => const BriefingScreen(),
           ),
           GoRoute(
-            path: Routes.library,
-            builder: (_, _) => const LibraryScreen(),
+            path: Routes.knowledge,
+            builder: (_, _) => const KnowledgeScreen(),
           ),
           GoRoute(
             path: Routes.conversations,
             builder: (_, _) => const ConversationsTabScreen(),
           ),
+          GoRoute(
+            path: Routes.projects,
+            builder: (_, _) => const ProjectsScreen(),
+          ),
         ],
       ),
     ],
@@ -154,8 +173,9 @@ class _Shell extends ConsumerStatefulWidget {
 class _ShellState extends ConsumerState<_Shell> {
   static const _tabs = [
     Routes.briefing,
-    Routes.library,
+    Routes.knowledge,
     Routes.conversations,
+    Routes.projects,
   ];
 
   @override
@@ -290,15 +310,20 @@ class _ShellState extends ConsumerState<_Shell> {
                           label: Text('Briefing'),
                         ),
                         NavigationRailDestination(
-                          icon: Icon(Icons.library_books_outlined),
-                          selectedIcon: Icon(Icons.library_books),
-                          label: Text('Library'),
+                          icon: Icon(Icons.menu_book_outlined),
+                          selectedIcon: Icon(Icons.menu_book),
+                          label: Text('Knowledge'),
                         ),
                         NavigationRailDestination(
                           icon: Icon(Icons.chat_bubble_outline),
                           selectedIcon: Icon(Icons.chat_bubble),
                           label: Text('Chat'),
                         ),
+                        NavigationRailDestination(
+                          icon: Icon(Icons.folder_outlined),
+                          selectedIcon: Icon(Icons.folder),
+                          label: Text('Projects'),
+                        ),
                       ],
                     ),
                     const VerticalDivider(width: 1),
@@ -335,15 +360,20 @@ class _ShellState extends ConsumerState<_Shell> {
             label: 'Briefing',
           ),
           NavigationDestination(
-            icon: Icon(Icons.library_books_outlined),
-            selectedIcon: Icon(Icons.library_books),
-            label: 'Library',
+            icon: Icon(Icons.menu_book_outlined),
+            selectedIcon: Icon(Icons.menu_book),
+            label: 'Knowledge',
           ),
           NavigationDestination(
             icon: Icon(Icons.chat_bubble_outline),
             selectedIcon: Icon(Icons.chat_bubble),
             label: 'Chat',
           ),
+          NavigationDestination(
+            icon: Icon(Icons.folder_outlined),
+            selectedIcon: Icon(Icons.folder),
+            label: 'Projects',
+          ),
         ],
       ),
     );
@@ -411,8 +441,8 @@ class _QuickCaptureBarState extends ConsumerState<_QuickCaptureBar> {
   }
 
   String _hintForLocation(String location) {
-    if (location.startsWith(Routes.library) &&
-        location.contains('tasks')) { return 'Add a task…'; }
+    if (location.startsWith(Routes.knowledge)) return 'Capture a note…';
+    if (location.startsWith(Routes.projects)) return 'Capture a note…';
     if (location.startsWith(Routes.conversations)) return 'Ask Fabled…';
     return 'Capture a note…';
   }