feat: 实现RCU固件升级服务核心功能

- 添加升级服务主逻辑，包括定时触发升级、状态查询和日志记录
- 实现数据库初始化脚本和日志表结构
- 添加PM2部署配置文件
- 实现环境变量配置系统
- 添加API客户端模块处理外部接口调用
- 实现升级状态轮询和超时处理机制
- 添加测试用例验证核心功能

src/apiClient.js

@@ -0,0 +1,53 @@
+const axios = require('axios');
+const config = require('./config');
+
+const apiClient = axios.create({
+    baseURL: config.apiBaseUrl,
+    timeout: 10000,
+    headers: {
+        'Content-Type': 'application/x-www-form-urlencoded'
+    }
+});
+
+const triggerUpgrade = async (roomtype_id, host_list, fileName) => {
+    try {
+        const params = new URLSearchParams();
+        params.append('roomtype_id', roomtype_id);
+        params.append('host_list_str', JSON.stringify(host_list));
+        params.append('fileName', fileName);
+
+        console.log('[WebChatUpgrade] Request', {
+            roomtype_id,
+            host_list_str: host_list,
+            fileName
+        });
+        const response = await apiClient.post('/WebChatUpgrade', params);
+        console.log('[WebChatUpgrade] Response', response.data);
+        return response.data;
+    } catch (error) {
+        console.error('Error calling WebChatUpgrade:', error.message);
+        throw error;
+    }
+};
+
+const queryStatus = async (host_list) => {
+    try {
+        const params = new URLSearchParams();
+        params.append('HostIDList', JSON.stringify(host_list));
+
+        console.log('[QueryUpdateHostProgressBar] Request', {
+            HostIDList: host_list
+        });
+        const response = await apiClient.post('/QueryUpdateHostProgressBar', params);
+        console.log('[QueryUpdateHostProgressBar] Response', response.data);
+        return response.data;
+    } catch (error) {
+        console.error('Error calling QueryUpdateHostProgressBar:', error.message);
+        throw error;
+    }
+};
+
+module.exports = {
+    triggerUpgrade,
+    queryStatus
+};