chore: 初始化uniapp前端项目基础框架

新增项目配置、静态资源、工具类、状态管理、API接口、组件库集成等全套基础代码，完成项目初始化搭建

frontend/app/src/api/module_system/menu.ts

@@ -0,0 +1,71 @@
+import type { BatchSetStatus } from './user'
+import { http } from '@/http'
+
+const SYSTEM_BASE = '/system'
+
+/**
+ * 菜单管理 API
+ * 与 web 端 module_system/menu.ts 对齐（完整字段定义）
+ */
+export const MenuAPI = {
+  getTree(params?: MenuQuery): Promise<MenuItem[]> {
+    return http.Get(`${SYSTEM_BASE}/menu/tree`, params)
+  },
+  getDetail(id: number): Promise<MenuItem> {
+    return http.Get(`${SYSTEM_BASE}/menu/detail/${id}`)
+  },
+  create(data: MenuForm): Promise<MenuItem> {
+    return http.Post(`${SYSTEM_BASE}/menu/create`, data)
+  },
+  update(id: number, data: MenuForm): Promise<MenuItem> {
+    return http.Put(`${SYSTEM_BASE}/menu/update/${id}`, data)
+  },
+  remove(ids: number[]): Promise<void> {
+    return http.Delete(`${SYSTEM_BASE}/menu/delete`, { ids: JSON.stringify(ids) })
+  },
+  batchStatus(data: BatchSetStatus): Promise<void> {
+    return http.Patch(`${SYSTEM_BASE}/menu/status/batch`, data)
+  },
+}
+
+export interface MenuQuery {
+  name?: string
+  status?: number
+  type?: number
+  menu_client?: 'web' | 'app'
+}
+
+export interface MenuForm extends BaseFormType {
+  name?: string
+  type: number
+  icon?: string
+  order?: number
+  permission?: string
+  route_name?: string
+  route_path?: string
+  component_path?: string
+  redirect?: string
+  parent_id?: number
+  keep_alive?: boolean
+  hidden?: boolean
+  always_show?: boolean
+  title?: string
+  params?: { key: string, value: string }[]
+  affix?: boolean
+  link?: string
+  is_iframe?: boolean
+  is_hide_tab?: boolean
+  active_path?: string
+  show_badge?: boolean
+  show_text_badge?: string
+  scope?: 'web' | 'app'
+  client?: 'pc' | 'app'
+  status?: number
+  description?: string
+}
+
+export interface MenuItem extends BaseType, MenuForm {
+  id: number
+  parent_name?: string
+  children?: MenuItem[]
+}