feat(admin): subscription expiry modals and once-per-session SMS warning

Co-authored-by: Cursor <cursoragent@cursor.com>

src/core/layouts/BasicLayout.vue

@@ -91,6 +91,7 @@
     <BasicMobileBottomNav v-if="isMobile" />
     <BaseSettings />
     <SmsNegativeBalanceHost />
+    <SubscriptionExpiryHost />
   </ALayout>
 </template>
 
@@ -104,6 +105,7 @@ import BaseSettings from '@core/layouts/BaseSettings.vue'
 import BasicMobileHeader from '@/components/BasicMobileHeader.vue'
 import BasicMobileBottomNav from '@/components/BasicMobileBottomNav.vue'
 import SmsNegativeBalanceHost from '@/components/SmsNegativeBalanceHost.vue'
+import SubscriptionExpiryHost from '@/components/SubscriptionExpiryHost.vue'
 const { prefixCls } = usePrefix('basic-layout')
 const layoutStore = useLayoutStore()
 </script>