add

frontend/app/lib/core/router/app_router.dart

@@ -1,6 +1,7 @@
 
 
 import 'package:app/features/auth/pages/login_page.dart';
+import 'package:app/features/auth/pages/register_page.dart';
 import 'package:app/features/home/pages/index_page.dart';
 import 'package:go_router/go_router.dart';
 
@@ -10,6 +11,7 @@ final appRouter = GoRouter(
   initialLocation: '/auth/login',
   routes: [
     GoRoute(path: '/auth/login', builder: (context, state) => const LoginPage()),
+    GoRoute(path: '/auth/register', builder: (context, state) => const RegisterPage()),
     ShellRoute(
         builder:  (context, state, child) {
             return MainPage(child: child);