Initial commit: React + Django 城市手册项目

- Django 4.2 + DRF + JWT + GraphQL
- React 18 + MobX + styled-components
- PostgreSQL 数据库
- Docker + Docker Compose + Nginx
- 完整的功能模块（用户、版块、文章、服务、交互、版主管理）
- 完整的文档（需求、部署、测试）

frontend/src/services/api.js

@@ -0,0 +1,54 @@
+import axios from 'axios';
+
+const api = axios.create({
+  baseURL: process.env.REACT_APP_API_URL || 'http://localhost:8000',
+  headers: {
+    'Content-Type': 'application/json',
+  },
+});
+
+// Add token to requests
+api.interceptors.request.use(
+  (config) => {
+    const token = localStorage.getItem('token');
+    if (token) {
+      config.headers.Authorization = `Bearer ${token}`;
+    }
+    return config;
+  },
+  (error) => Promise.reject(error)
+);
+
+// Handle token refresh
+api.interceptors.response.use(
+  (response) => response,
+  async (error) => {
+    const originalRequest = error.config;
+
+    if (error.response?.status === 401 && !originalRequest._retry) {
+      originalRequest._retry = true;
+
+      try {
+        const refreshToken = localStorage.getItem('refresh');
+        const response = await axios.post('/api/token/refresh/', {
+          refresh: refreshToken,
+        });
+
+        const newToken = response.data.access;
+        localStorage.setItem('token', newToken);
+        originalRequest.headers.Authorization = `Bearer ${newToken}`;
+
+        return api(originalRequest);
+      } catch (refreshError) {
+        localStorage.removeItem('token');
+        localStorage.removeItem('refresh');
+        window.location.href = '/login';
+        return Promise.reject(refreshError);
+      }
+    }
+
+    return Promise.reject(error);
+  }
+);
+
+export default api;