docs: 更新项目文档，完善需求和技术细节

backend/app.js

@@ -22,13 +22,14 @@ const userRoutes = require('./routes/users');
 const productRoutes = require('./routes/products');
 const orderRoutes = require('./routes/orders');
 const identificationRoutes = require('./routes/identifications');
+const adminRoutes = require('./routes/admin');
 
 // 导入中间件
 const { errorHandler } = require('./middlewares/errorHandler');
 const { authMiddleware } = require('./middlewares/auth');
 
 const app = express();
-const PORT = process.env.PORT || 3000;
+const PORT = process.env.PORT || 3201;
 
 // 安全中间件
 app.use(helmet());
@@ -75,6 +76,7 @@ app.use('/api/v1/users', authMiddleware, userRoutes);
 app.use('/api/v1/products', productRoutes);
 app.use('/api/v1/orders', authMiddleware, orderRoutes);
 app.use('/api/v1/identifications', authMiddleware, identificationRoutes);
+app.use('/api/v1/admin', authMiddleware, adminRoutes);
 
 // 404处理
 app.use('*', (req, res) => {