creates application

frontend/src/components/ProtectedRoute.tsx

@@ -0,0 +1,24 @@
+import { Navigate } from 'react-router-dom';
+import { useAuth } from '@/contexts/AuthContext';
+
+interface ProtectedRouteProps {
+  children: React.ReactNode;
+}
+
+export function ProtectedRoute({ children }: ProtectedRouteProps) {
+  const { isAuthenticated, isLoading } = useAuth();
+
+  if (isLoading) {
+    return (
+      <div className="min-h-screen flex items-center justify-center">
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-primary-600"></div>
+      </div>
+    );
+  }
+
+  if (!isAuthenticated) {
+    return <Navigate to="/login" replace />;
+  }
+
+  return <>{children}</>;
+}