feat: update ready keeps showing even after updating

Task #61 completed by ClaudeQueue

ClaudeQueue

frontend/index.html

@@ -307,6 +307,7 @@
     <script src="fingerprint.js"></script>
     <script src="opfs.js"></script>
     <script src="async-guard.js"></script>
+    <script src="sw-update.js"></script>
     <script src="app.js"></script>
   </body>
 </html>