frontend/src/main.jsx

@@ -5,3 +5,10 @@ import { registerSW } from "virtual:pwa-register";
 
 createRoot(document.getElementById("root")).render(<App />);
 registerSW({ immediate: true });
+const updateSW = registerSW({
+    immediate: true,
+    onNeedRefresh() {
+      updateSW(true); // sofort neue Version aktivieren
+      window.location.reload();
+    },
+  });

frontend/vite.config.js

@@ -28,6 +28,9 @@ export default defineConfig({
       workbox: {
         // Caching-Default: die App-Shell wird offline verfügbar
         globPatterns: ["**/*.{js,css,html,ico,png,jpg,jpeg,svg,webp}"],
+        cleanupOutdatedCaches: true,
+        skipWaiting: true,
+        clientsClaim: true,
       }
     })
   ]