set config via feature flags (#6590)

In cloud environment, allow all the config values to be set by the
feature flag endpoint and be updated dynamically (on 30s poll). Retain
origianl behavior for OSS. On cloud, config changes shouldn't be changed
via redeploy and the promoted image should match the staging image.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6590-set-config-via-feature-flags-2a26d73d3650819f8084eb2695c51f22)
by [Unito](https://www.unito.io)

---------

Co-authored-by: DrJKL <DrJKL0424@gmail.com>

src/platform/cloud/subscription/composables/useSubscription.ts

@@ -4,7 +4,7 @@ import { createSharedComposable } from '@vueuse/core'
 import { useCurrentUser } from '@/composables/auth/useCurrentUser'
 import { useFirebaseAuthActions } from '@/composables/auth/useFirebaseAuthActions'
 import { useErrorHandling } from '@/composables/useErrorHandling'
-import { COMFY_API_BASE_URL } from '@/config/comfyApi'
+import { getComfyApiBaseUrl, getComfyPlatformBaseUrl } from '@/config/comfyApi'
 import { MONTHLY_SUBSCRIPTION_PRICE } from '@/config/subscriptionPricesConfig'
 import { t } from '@/i18n'
 import { isCloud } from '@/platform/distribution/types'
@@ -74,6 +74,8 @@ function useSubscriptionInternal() {
     () => `$${MONTHLY_SUBSCRIPTION_PRICE.toFixed(0)}`
   )
 
+  const buildApiUrl = (path: string) => `${getComfyApiBaseUrl()}${path}`
+
   const fetchStatus = wrapWithErrorHandlingAsync(
     fetchSubscriptionStatus,
     reportError
@@ -114,7 +116,7 @@ function useSubscriptionInternal() {
   }
 
   const handleViewUsageHistory = () => {
-    window.open('https://platform.comfy.org/profile/usage', '_blank')
+    window.open(`${getComfyPlatformBaseUrl()}/profile/usage`, '_blank')
   }
 
   const handleLearnMore = () => {
@@ -136,7 +138,7 @@ function useSubscriptionInternal() {
     }
 
     const response = await fetch(
-      `${COMFY_API_BASE_URL}/customers/cloud-subscription-status`,
+      buildApiUrl('/customers/cloud-subscription-status'),
       {
         headers: {
           ...authHeader,
@@ -181,7 +183,7 @@ function useSubscriptionInternal() {
       }
 
       const response = await fetch(
-        `${COMFY_API_BASE_URL}/customers/cloud-subscription-checkout`,
+        buildApiUrl('/customers/cloud-subscription-checkout'),
         {
           method: 'POST',
           headers: {