Cloud/gate topup on subscription (#6399)

## Summary

Gate the Top up buttons in the user dropdown and credits page of the
settings.


┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6399-Cloud-gate-topup-on-subscription-29c6d73d36508127866cdcbcfda66c46)
by [Unito](https://www.unito.io)

---------

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

src/services/dialogService.ts

@@ -14,6 +14,7 @@ import ComfyOrgHeader from '@/components/dialog/header/ComfyOrgHeader.vue'
 import SettingDialogHeader from '@/components/dialog/header/SettingDialogHeader.vue'
 import { t } from '@/i18n'
 import { isCloud } from '@/platform/distribution/types'
+import { useSubscription } from '@/platform/cloud/subscription/composables/useSubscription'
 import SettingDialogContent from '@/platform/settings/components/SettingDialogContent.vue'
 import type { ExecutionErrorWsMessage } from '@/schemas/apiSchema'
 import { useDialogStore } from '@/stores/dialogStore'
@@ -341,6 +342,9 @@ export const useDialogService = () => {
   function showTopUpCreditsDialog(options?: {
     isInsufficientCredits?: boolean
   }) {
+    const { isActiveSubscription } = useSubscription()
+    if (!isActiveSubscription.value) return
+
     return dialogStore.showDialog({
       key: 'top-up-credits',
       component: TopUpCreditsDialogContent,