feat: complete leave approval MVP

mobile/lib/app/router.dart

@@ -2,6 +2,8 @@ import 'package:aioa_mobile/app/shell.dart';
 import 'package:aioa_mobile/features/assistant/presentation/assistant_page.dart';
 import 'package:aioa_mobile/features/form/presentation/leave_form_page.dart';
 import 'package:aioa_mobile/features/profile/presentation/profile_page.dart';
+import 'package:aioa_mobile/features/requests/presentation/leave_request_detail_page.dart';
+import 'package:aioa_mobile/features/requests/presentation/leave_request_list_page.dart';
 import 'package:aioa_mobile/features/tasks/presentation/tasks_page.dart';
 import 'package:aioa_mobile/features/workspace/presentation/workspace_page.dart';
 import 'package:flutter/material.dart';
@@ -27,5 +29,11 @@ final appRouter = GoRouter(
         child: const LeaveFormPage(),
       ),
     ),
+    GoRoute(path: '/leave', builder: (_, _) => const LeaveRequestListPage()),
+    GoRoute(
+      path: '/leave/:id',
+      builder: (_, state) =>
+          LeaveRequestDetailPage(id: state.pathParameters['id']!),
+    ),
   ],
 );