chore: 移除 frontend/app 私有代码，仅保留 .gitkeep

该目录为私有移动端项目，不应开源。从 git 跟踪中移除并加入 .gitignore。

frontend/app/src/utils/compat.ts

@@ -1,47 +0,0 @@
-/**
- * CommonUtil 工具方法
- * 提供 deepClone / isString / isObj / isDef / deepMerge 等工具方法
- */
-export const CommonUtil = {
-  isString(val: unknown): val is string {
-    return typeof val === 'string'
-  },
-
-  isObj(val: unknown): val is Record<string, any> {
-    return val !== null && typeof val === 'object' && !Array.isArray(val)
-  },
-
-  isDef(val: unknown): boolean {
-    return val !== undefined && val !== null
-  },
-
-  /**
-   * 深拷贝
-   * 优先使用原生 structuredClone（支持 Date/Map/Set/循环引用等），
-   * 失败时（如 Vue reactive Proxy 无法被 structuredClone 序列化）回退 JSON 深拷贝。
-   */
-  deepClone<T>(obj: T): T {
-    if (typeof structuredClone === 'function') {
-      try {
-        return structuredClone(obj)
-      }
-      catch {
-        // structuredClone 无法克隆 Vue reactive Proxy（Pinia $state）等对象，回退 JSON
-      }
-    }
-    return JSON.parse(JSON.stringify(obj)) as T
-  },
-
-  deepMerge<T extends Record<string, any>>(target: T, source: Record<string, any>): T {
-    const result = { ...target } as Record<string, any>
-    for (const key of Object.keys(source)) {
-      if (CommonUtil.isObj(source[key]) && CommonUtil.isObj(result[key])) {
-        result[key] = CommonUtil.deepMerge(result[key], source[key])
-      }
-      else {
-        result[key] = source[key]
-      }
-    }
-    return result as T
-  },
-}

frontend/app/src/utils/index.ts

@@ -1,9 +0,0 @@
-/**
- * 获取当前页面路径
- * @returns 当前页面路径
- */
-export function getCurrentPath() {
-  const pages = getCurrentPages()
-  const currentPage = pages[pages.length - 1]
-  return currentPage.route || ''
-}

frontend/app/src/utils/storage.ts

@@ -1,35 +0,0 @@
-/**
- * 存储工具类
- * 提供localStorage和sessionStorage操作方法
- */
-
-/**
- * localStorage 存储
- */
-function set(key: string, value: unknown): void {
-  uni.setStorageSync(key, JSON.stringify(value))
-}
-
-function get<T>(key: string, defaultValue?: T): T {
-  const value = uni.getStorageSync(key)
-  if (!value)
-    return defaultValue as T
-
-  try {
-    return JSON.parse(value)
-  }
-  catch {
-    // 如果解析失败，返回原始字符串
-    return value as unknown as T
-  }
-}
-
-function remove(key: string): void {
-  uni.removeStorageSync(key)
-}
-
-export const Storage = {
-  set,
-  get,
-  remove,
-}

frontend/app/src/utils/systemTheme.ts

@@ -1,107 +0,0 @@
-import type { ThemeMode } from '@/composables/types/theme'
-
-interface ThemeOwnerState {
-  initialized: boolean
-  listenerCount: number
-  themeChangeHandler?: UniNamespace.OnThemeChangeCallback
-}
-
-const themeOwnerStates = new WeakMap<object, ThemeOwnerState>()
-
-function getThemeOwnerState(owner: object) {
-  let state = themeOwnerStates.get(owner)
-  if (!state) {
-    state = {
-      initialized: false,
-      listenerCount: 0,
-    }
-    themeOwnerStates.set(owner, state)
-  }
-  return state
-}
-
-function isThemeMode(theme: unknown): theme is ThemeMode {
-  return theme === 'light' || theme === 'dark'
-}
-
-/**
- * 获取当前系统主题，不支持主题 API 或调用失败时回退为亮色。
- */
-export function getSystemTheme(): ThemeMode {
-  try {
-    // #ifdef MP-WEIXIN
-    const appBaseInfo = uni.getAppBaseInfo()
-    if (isThemeMode(appBaseInfo?.theme)) {
-      return appBaseInfo.theme
-    }
-    // #endif
-
-    // #ifndef MP-WEIXIN
-    const systemInfo = uni.getSystemInfoSync()
-    if (isThemeMode(systemInfo?.theme)) {
-      return systemInfo.theme
-    }
-    // #endif
-  }
-  catch (error) {
-    console.warn('获取系统主题失败:', error)
-  }
-
-  return 'light'
-}
-
-/**
- * 确保同一个主题 store 在生命周期内只初始化一次。
- */
-export function initializeThemeOnce(owner: object, initialize: () => void) {
-  const state = getThemeOwnerState(owner)
-  if (state.initialized) {
-    return
-  }
-
-  initialize()
-  state.initialized = true
-}
-
-/**
- * 按主题 store 复用系统主题监听，并返回对应的清理函数。
- */
-export function subscribeSystemThemeChange(
-  owner: object,
-  handler: UniNamespace.OnThemeChangeCallback,
-) {
-  if (
-    typeof uni === 'undefined'
-    || typeof uni.onThemeChange !== 'function'
-  ) {
-    return () => {}
-  }
-
-  const state = getThemeOwnerState(owner)
-
-  if (!state.themeChangeHandler) {
-    state.themeChangeHandler = handler
-    uni.onThemeChange(state.themeChangeHandler)
-  }
-  state.listenerCount += 1
-
-  let subscribed = true
-
-  return () => {
-    if (!subscribed) {
-      return
-    }
-    subscribed = false
-    state.listenerCount = Math.max(0, state.listenerCount - 1)
-
-    if (
-      state.listenerCount === 0
-      && state.themeChangeHandler
-    ) {
-      if (typeof uni.offThemeChange === 'function') {
-        uni.offThemeChange(state.themeChangeHandler)
-      }
-      state.themeChangeHandler = undefined
-    }
-  }
-}

frontend/app/src/utils/toLoginPage.ts

@@ -1,17 +0,0 @@
-// 跳转到登录页
-export function toLoginPage(
-  options: { mode?: 'navigateTo' | 'reLaunch' } = {},
-) {
-  const { mode = 'navigateTo' } = options
-
-  if (mode === 'reLaunch') {
-    uni.reLaunch({
-      url: '/pages/login/index',
-    })
-  }
-  else {
-    uni.navigateTo({
-      url: '/pages/login/index',
-    })
-  }
-}