[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/platform/auth/serviceWorker/index.ts

@@ -1,9 +0,0 @@
-import { isCloud } from '@/platform/distribution/types'
-
-/**
- * Auth service worker registration (cloud-only).
- * Tree-shaken for desktop/localhost builds via compile-time constant.
- */
-if (isCloud) {
-  void import('./register')
-}

src/platform/auth/serviceWorker/register.ts

@@ -1,57 +0,0 @@
-import { watch } from 'vue'
-
-import { useCurrentUser } from '@/composables/auth/useCurrentUser'
-import { useFirebaseAuthStore } from '@/stores/firebaseAuthStore'
-
-/**
- * Registers the authentication service worker for cloud distribution.
- * Intercepts /api/view requests to add auth headers for browser-native requests.
- */
-async function registerAuthServiceWorker(): Promise<void> {
-  if (!('serviceWorker' in navigator)) {
-    return
-  }
-
-  try {
-    await navigator.serviceWorker.register('/auth-sw.js')
-
-    setupAuthHeaderProvider()
-    setupCacheInvalidation()
-  } catch (error) {
-    console.error('[Auth SW] Registration failed:', error)
-  }
-}
-
-/**
- * Listens for auth header requests from the service worker
- */
-function setupAuthHeaderProvider(): void {
-  navigator.serviceWorker.addEventListener('message', async (event) => {
-    if (event.data.type === 'REQUEST_AUTH_HEADER') {
-      const firebaseAuthStore = useFirebaseAuthStore()
-      const authHeader = await firebaseAuthStore.getAuthHeader()
-
-      event.ports[0].postMessage({
-        type: 'AUTH_HEADER_RESPONSE',
-        authHeader
-      })
-    }
-  })
-}
-
-/**
- * Invalidates cached auth header when user logs in/out
- */
-function setupCacheInvalidation(): void {
-  const { isLoggedIn } = useCurrentUser()
-
-  watch(isLoggedIn, (newValue, oldValue) => {
-    if (newValue !== oldValue) {
-      navigator.serviceWorker.controller?.postMessage({
-        type: 'INVALIDATE_AUTH_HEADER'
-      })
-    }
-  })
-}
-
-void registerAuthServiceWorker()