feat(pwa): register service worker with auto-update

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

apps/main/src/main.tsx

@@ -18,3 +18,8 @@ createRoot(document.getElementById("root")!).render(
     </QueryClientProvider>
   </StrictMode>
 );
+
+import { registerSW } from "virtual:pwa-register";
+
+// Auto-update service worker — checks for updates on page load
+registerSW({ immediate: true });

apps/main/tsconfig.app.json

@@ -4,6 +4,7 @@
     "target": "ES2020",
     "useDefineForClassFields": true,
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "types": ["vite-plugin-pwa/client"],
     "module": "ESNext",
     "skipLibCheck": true,