feat(web): migrate student academic insights

Add React exam and invigilation schedules, student transcript metrics and score breakdowns, and academic warning acknowledgement with support follow-up timelines. Connect role-aware navigation and dashboard links.

web-react/src/app/App.tsx

@@ -11,6 +11,9 @@ const AccountPage = lazy(() => import('../pages/AccountPage'))
 const UsersPage = lazy(() => import('../pages/UsersPage'))
 const NotificationsPage = lazy(() => import('../pages/NotificationsPage'))
 const MyTimetablePage = lazy(() => import('../pages/MyTimetablePage'))
+const ExamsPage = lazy(() => import('../pages/ExamsPage'))
+const StudentGradesPage = lazy(() => import('../pages/StudentGradesPage'))
+const StudentWarningsPage = lazy(() => import('../pages/StudentWarningsPage'))
 const SsoCallbackPage = lazy(() => import('../pages/SsoCallbackPage'))
 const SsoBindPage = lazy(() => import('../pages/SsoBindPage'))
 const AppShell = lazy(() => import('../layout/AppShell'))
@@ -56,6 +59,9 @@ function AppRoutes() {
           <Route path="/users" element={<UsersPage />} />
           <Route path="/notifications" element={<NotificationsPage />} />
           <Route path="/my-timetable" element={<MyTimetablePage />} />
+          <Route path="/exams" element={<ExamsPage />} />
+          <Route path="/grades" element={<StudentGradesPage />} />
+          <Route path="/warnings" element={<StudentWarningsPage />} />
           <Route path="/" element={<Navigate to="/dashboard" replace />} />
         </Route>
         <Route path="*" element={<Navigate to="/dashboard" replace />} />