增加通过认证码绑定设备和管理账户的功能，需要开启私有设备配置

增加登录用户鉴权

ZhiKongTaiWeb/src/utils/api.js

@@ -0,0 +1,61 @@
+import axios from 'axios';
+import { API_BASE_URL } from '../config/api';
+
+// Add server status check utility
+export const checkServerStatus = async () => {
+  try {
+    await axios.get(`${API_BASE_URL}/health`, { timeout: 5000 });
+    return true;
+  } catch (error) {
+    return false;
+  }
+};
+
+const apiClient = axios.create({
+  baseURL: API_BASE_URL,
+  headers: {
+    'Content-Type': 'application/json',
+  },
+  timeout: 10000  // Add timeout
+});
+
+// 添加请求拦截器，自动添加 session_id
+apiClient.interceptors.request.use(config => {
+  const sessionId = localStorage.getItem('session_id');
+  if (sessionId) {
+    config.headers.Authorization = sessionId;
+  }
+  return config;
+});
+
+// 响应拦截器
+apiClient.interceptors.response.use(
+  response => response,
+  error => {
+    // Network error or server not reachable
+    if (!error.response || error.code === 'ERR_NETWORK' || error.code === 'ECONNABORTED') {
+      localStorage.removeItem('session_id');
+      localStorage.removeItem('isLoggedIn');
+      
+      const errorMessage = error.code === 'ECONNABORTED' 
+        ? '服务器响应超时'
+        : '无法连接到服务器，请检查服务器是否正常运行';
+      
+      if (window.location.pathname !== '/login') {
+        window.location.href = '/login';
+      }
+      return Promise.reject(new Error(errorMessage));
+    }
+
+    // Unauthorized error
+    if (error.response && error.response.status === 401) {
+      localStorage.removeItem('session_id');
+      localStorage.removeItem('isLoggedIn');
+      window.location.href = '/login';
+    }
+    
+    return Promise.reject(error);
+  }
+);
+
+export default apiClient;