Initial commit

frontend/src/components/ProtectedRoute.jsx

@@ -0,0 +1,20 @@
+import { Navigate } from 'react-router-dom'
+import { useAuth } from '../context/AuthContext'
+
+export default function ProtectedRoute({ children }) {
+  const { isAuthenticated, isLoading } = useAuth()
+
+  if (isLoading) {
+    return (
+      <div className="flex min-h-screen items-center justify-center bg-gray-50 text-gray-500 dark:bg-gray-900 dark:text-gray-400">
+        Lädt…
+      </div>
+    )
+  }
+
+  if (!isAuthenticated) {
+    return <Navigate to="/login" replace />
+  }
+
+  return children
+}