清理旧消息和历史命名

apps/frontend/src/views/admin/layout/AdminLayout.vue

@@ -10,7 +10,6 @@ import {
   Expand,
   Fold,
   List,
-  Message,
   Setting,
   SwitchButton,
   Tickets,
@@ -62,8 +61,6 @@ const navItems = computed(() => {
     items.push({ to: '/admin/inventory', label: '库存', icon: Box })
   }
 
-  items.push({ to: '/admin/message-deliveries', label: '消息发送', icon: Message })
-
   if (isAdmin.value || isOperator.value) {
     items.push({ to: '/admin/webhook-events', label: 'Webhook', icon: Connection })
   }