add AGENTS.md
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AGENTS.md
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AGENTS.md
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# Agent Instructions for Trace Frontend
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## Build & Development Commands
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### Development
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```bash
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pnpm dev # Start dev server at http://localhost:5173
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```
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### Build
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```bash
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pnpm build # Build for production (outputs to dist/)
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pnpm preview # Preview production build
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```
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### Testing & Linting
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No test or lint commands are currently configured. When adding tests, use Vitest or Jest.
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## Project Overview
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This is a React 19 + TypeScript frontend for the Zhejiang Beifan Trace Management Platform (溯源管理平台). It provides:
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- Public query interface for serial number verification
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- Admin dashboard for QR code generation and company management
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- User authentication and profile management
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**Tech Stack**: React 19, TypeScript, Vite 7, Ant Design 6, React Router v7, Axios
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## Code Style Guidelines
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### File Organization
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```
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src/
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├── components/ # Reusable UI components (AdminLayout, etc.)
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├── pages/ # Page components (Login, Dashboard, etc.)
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├── services/ # API service layer (api.ts with domain-specific APIs)
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├── types/ # TypeScript type definitions (index.ts)
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├── hooks/ # Custom React hooks
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├── utils/ # Utility functions
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├── styles/ # Global CSS files
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├── assets/ # Static assets (images, etc.)
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├── App.tsx # Main app with routes
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└── main.tsx # Application entry point
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```
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### Imports
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- Use `@/` alias for src directory (configured in vite.config.ts and tsconfig.json)
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- Group imports: React/hooks first, then third-party libraries, then internal imports
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- Example:
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```tsx
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import { useState } from 'react';
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import { Form, Input, Button } from 'antd';
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import { UserOutlined } from '@ant-design/icons';
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import { useNavigate } from 'react-router-dom';
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import { authApi } from '@/services/api';
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import type { User } from '@/types';
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```
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### Naming Conventions
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- **Components**: PascalCase (e.g., `LoginPage`, `AdminLayout`)
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- **Functions/Methods**: camelCase (e.g., `handleLogin`, `loadStats`)
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- **Constants**: UPPER_SNAKE_CASE (e.g., `API_BASE_URL`)
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- **Types/Interfaces**: PascalCase (e.g., `User`, `Company`, `ApiResponse<T>`)
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- **Files**: PascalCase for components/pages, lowercase for services/utils
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### TypeScript
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- All new code must be TypeScript
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- Use `interface` for object shapes, `type` for unions/aliases
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- Explicit return types for API functions and handlers
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- Use `any` only as last resort - prefer `unknown` with type guards
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- Strict mode enabled: no unused locals, no unused parameters
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### Component Patterns
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- Use functional components with hooks
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- For pages: use `function PageName()` (not arrow functions)
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- For layout/reusable components: use `function ComponentName()`
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- Export with `export default ComponentName;`
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- Use Ant Design components via destructuring: `const { Button, Form } = antd;`
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### Error Handling
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- Use try-catch blocks for async operations
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- Display errors with Ant Design `message.error()`
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- API services throw errors with descriptive messages
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- Global axios interceptor handles 401 (auth) and 404 (not found) automatically
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### API Services
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- API calls organized by domain in `src/services/api.ts`:
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- `authApi` - Authentication (login, logout, profile)
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- `serialApi` - Serial number management
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- `companyApi` - Company management
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- `dashboardApi` - Dashboard statistics
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- Auth token automatically added via axios interceptor
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- All API calls return typed responses based on `src/types/index.ts`
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### Routing
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- Use React Router v7 with `<Routes>` and `<Route>` components
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- Protected routes wrapped with `<PrivateRoute>` component
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- Admin pages wrapped with `<AdminRoutes>` layout component
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- Use `useNavigate()` for programmatic navigation
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- Use `useLocation()` to get current path
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### State Management
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- Use React hooks (`useState`, `useEffect`) for local component state
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- Authentication state persisted in localStorage via authApi
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- No global state management library currently used
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### Styling
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- Global styles in `src/styles/global.css`
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- Component-specific CSS in co-located styles directory (e.g., `pages/styles/Login.css`)
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- Import component styles with relative path: `import './styles/PageName.css';`
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- Use Ant Design components for primary UI, custom CSS for layout specifics
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### Locale & Internationalization
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- Chinese (zh_CN) locale configured globally via `ConfigProvider` in main.tsx
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- All UI text should be in Chinese
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- Ant Design components automatically use Chinese locale
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## Key Patterns & Conventions
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### Page Component Structure
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```tsx
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function PageName() {
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const [loading, setLoading] = useState(false);
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const [data, setData] = useState<DataType | null>(null);
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useEffect(() => {
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loadData();
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}, []);
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const loadData = async () => {
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setLoading(true);
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try {
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const result = await apiMethod();
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setData(result);
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} catch (error: any) {
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message.error(error.message || '加载数据失败');
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} finally {
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setLoading(false);
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}
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};
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if (loading) {
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return <Spin size="large" />;
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}
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return <div>{/* JSX content */}</div>;
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}
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export default PageName;
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```
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### Route Guards
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- `<PrivateRoute />` - Redirects to /login if not authenticated
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- `<PublicRoute children={...} />` - Redirects to /admin/dashboard if authenticated
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- Use `<Outlet />` for nested routes
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### Environment Variables
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- Use Vite's `import.meta.env.VITE_*` pattern
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- Example: `const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || '/api';`
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- Define in `.env` file (not committed to git)
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## Notes for Agents
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1. **No tests configured**: When adding test frameworks, update AGENTS.md accordingly
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2. **No linter configured**: Consider adding ESLint and Prettier
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3. **Authentication flow**: Tokens stored in localStorage, added to requests via interceptor
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4. **API proxy**: /api requests proxied to http://localhost:3000 during dev (see vite.config.ts)
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5. **QR Code generation**: Uses `qrcode` library for generating QR codes for serial numbers
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6. **Admin Layout**: Uses Ant Design Layout with Sider navigation and Header
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7. **Type safety**: Always add types for new props, state, and API responses
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## Common Tasks
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### Add a new API endpoint
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1. Add interface to `src/types/index.ts`
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2. Add method to appropriate API object in `src/services/api.ts`
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3. Handle errors appropriately with descriptive messages
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### Add a new page
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1. Create component in `src/pages/PageName.tsx`
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2. Add CSS file in `src/pages/styles/PageName.css`
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3. Add route in `src/App.tsx`
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4. If admin page, wrap in `<AdminRoutes />` and add menu item in `AdminLayout.tsx`
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### Add a new component
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1. Create in `src/components/ComponentName.tsx`
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2. Add styles in `src/components/styles/ComponentName.css` if needed
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3. Import using `@/components/ComponentName`
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