feat(P01): 迁移 Taro 小程序项目代码

- 迁移前端源码 (src/)
- 迁移后端服务 (server/)
- 迁移配置文件 (package.json, tsconfig.json 等)
- 更新需求概要文档
- 更新架构设计文档
- 更新接口定义文档
- 更新环境配置文档
- 创建测试目录结构和配置

项目技术栈:
- Taro 4.1.9 (跨端框架)
- React 18
- TypeScript
- NestJS (后端)
- Tailwind CSS 4
- shadcn/ui 组件库

projects/P01_errlens_app/tests/setup.ts

@@ -0,0 +1,42 @@
+// Jest 测试环境配置
+import '@testing-library/jest-dom'
+
+// Mock Taro API
+jest.mock('@tarojs/taro', () => ({
+  getEnv: jest.fn(() => 'WEB'),
+  ENV_TYPE: {
+    WEAPP: 'WEAPP',
+    WEB: 'WEB',
+    RN: 'RN',
+    TT: 'TT'
+  },
+  request: jest.fn(),
+  uploadFile: jest.fn(),
+  downloadFile: jest.fn(),
+  createSelectorQuery: jest.fn(() => ({
+    select: jest.fn().mockReturnThis(),
+    boundingClientRect: jest.fn().mockReturnThis(),
+    exec: jest.fn(cb => cb([{}]))
+  })),
+  getSystemInfoSync: jest.fn(() => ({
+    windowWidth: 375,
+    windowHeight: 667
+  }))
+}))
+
+// Mock Network
+jest.mock('../src/network', () => ({
+  Network: {
+    request: jest.fn(),
+    uploadFile: jest.fn(),
+    downloadFile: jest.fn()
+  }
+}))
+
+// 全局测试超时
+jest.setTimeout(10000)
+
+// 清理
+afterEach(() => {
+  jest.clearAllMocks()
+})