update oauth

apps/frontend/app/admin/page.tsx

@@ -1,5 +1,22 @@
-import { redirect } from 'next/navigation';
+'use client';
+
+import { useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+import { useAuth } from '@/components/id/auth-provider';
+import { getAdminLandingPath } from '@/lib/admin-access';
 
 export default function AdminIndexPage() {
-  redirect('/admin/users');
+  const router = useRouter();
+  const { user, isLoading } = useAuth();
+
+  useEffect(() => {
+    if (isLoading || !user) return;
+    router.replace(getAdminLandingPath(user));
+  }, [isLoading, router, user]);
+
+  return (
+    <div className="flex min-h-[40vh] items-center justify-center text-[#667085]">
+      Перенаправление в админ-панель...
+    </div>
+  );
 }