[backport rh-test] remove auth service worker (rh-test) (#6296)

## Summary
- remove auth service worker bundle and registration code
- drop config ignores referencing removed assets

## Testing
- lint-staged (eslint, prettier)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6296-backport-rh-test-remove-auth-service-worker-rh-test-2986d73d36508118b8cdf1472577175f)
by [Unito](https://www.unito.io)

src/main.ts

@@ -85,9 +85,4 @@ app
     modules: [VueFireAuth()]
   })
 
-// Register auth service worker after Pinia is initialized (cloud-only)
-if (isCloud) {
-  void import('@/platform/auth/serviceWorker')
-}
-
 app.mount('#vue-app')