remove all auth service work related code (#6294)

## Summary

Removes all service worker auth code, as it is being replaced by a more
robust standard solution for authenticating view and viewvideo requests
in https://github.com/Comfy-Org/ComfyUI_frontend/pull/6295.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6294-remove-all-auth-service-work-related-code-2986d73d36508170a24bf1c42cad401e)
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) {
-  await import('./register')
-}

src/platform/auth/serviceWorker/register.ts

@@ -1,84 +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 {
-    // Use dev service worker in development mode (rewrites to configured backend URL with token in query param)
-    // Use production service worker in production (same-origin requests with Authorization header)
-    const swPath = import.meta.env.DEV ? '/auth-dev-sw.js' : '/auth-sw.js'
-    const registration = await navigator.serviceWorker.register(swPath)
-
-    // Configure base URL for dev service worker
-    if (import.meta.env.DEV) {
-      console.warn('[Auth DEV SW] Registering development serviceworker')
-      // Use the same URL that Vite proxy is using
-      const baseUrl = __DEV_SERVER_COMFYUI_URL__
-      navigator.serviceWorker.controller?.postMessage({
-        type: 'SET_BASE_URL',
-        baseUrl
-      })
-
-      // Also set base URL when service worker becomes active
-      registration.addEventListener('updatefound', () => {
-        const newWorker = registration.installing
-        newWorker?.addEventListener('statechange', () => {
-          if (newWorker.state === 'activated') {
-            navigator.serviceWorker.controller?.postMessage({
-              type: 'SET_BASE_URL',
-              baseUrl
-            })
-          }
-        })
-      })
-    }
-
-    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'
-      })
-    }
-  })
-}
-
-await registerAuthServiceWorker()