task-252(admin.html观感对齐): 菜单管理列表列对齐（ID/菜单类型/上级菜单/创建时间）+ 类型中文映射

admin-frontend-vue/src/pages/account/menu-manage-model.ts

@@ -14,9 +14,15 @@ export interface MenuManageNode {
   menuType: string
   routePath: string
   sortOrder: number
+  createdAt?: string
   children?: MenuManageNode[]
 }
 
+/** 菜单类型展示文案（对齐 admin 菜单类型语义）。 */
+export function menuTypeLabel(type: string | null | undefined): string {
+  return (type || '').toLowerCase() === 'app' ? '应用菜单' : '后台菜单'
+}
+
 export interface MenuManageForm {
   name: string
   columnKey: string
@@ -75,6 +81,8 @@ export function parseMenuManageItem(raw: unknown): MenuManageNode | null {
   }
   const rootColumnKey = text(record.root_column_key)
   if (rootColumnKey) node.rootColumnKey = rootColumnKey
+  const createdAt = text(record.created_at)
+  if (createdAt) node.createdAt = createdAt
   return node
 }