Finanzen: nur fuer Admins, Rueckkehrseite fuer die Bankfreigabe

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/components/AdminRoute.jsx

@@ -0,0 +1,20 @@
+import { Navigate } from 'react-router-dom'
+import { useAuth } from '../context/AuthContext'
+
+// Nur fuer Admins; wird innerhalb von ProtectedRoute verwendet. Alle anderen landen bei den Tickets.
+export default function AdminRoute({ children }) {
+  const { loading, isAdmin } = useAuth()
+
+  if (loading) {
+    return (
+      <div className="text-center p-4" style={{ marginTop: 80 }}>
+        <div className="spinner"></div>
+        <p>Loading...</p>
+      </div>
+    )
+  }
+
+  if (!isAdmin) return <Navigate to="/tickets" replace />
+
+  return children
+}