fix(remote-backup): 移除调试日志并改进协议类型验证

refactor(migrations): 添加设备字段options配置迁移

backend/routes/backup.js

@@ -802,7 +802,6 @@ router.delete('/remote/targets/:id', (req, res) => {
 router.post('/remote/test', async (req, res) => {
   try {
     const config = req.body;
-    console.log(`[RemoteBackup] 收到连接测试请求:`, JSON.stringify(config));
 
     if (!config.host || !config.port || !config.username) {
       return res.status(400).json({
@@ -812,21 +811,13 @@ router.post('/remote/test', async (req, res) => {
     }
 
     if (!config.protocol) {
-      const port = parseInt(config.port);
-      if (port === 22 || port === 2222) {
-        config.protocol = 'sftp';
-      } else if (port === 445 || port === 139 || port === 443) {
-        config.protocol = 'smb';
-      } else if (port === 80 || port === 443 || config.url) {
-        config.protocol = 'webdav';
-      } else {
-        config.protocol = 'ftp';
-      }
-      console.log(`[RemoteBackup] 推断协议类型: ${config.protocol} (基于端口 ${config.port})`);
+      return res.status(400).json({
+        success: false,
+        message: '请提供协议类型（protocol）',
+      });
     }
 
     const result = await testRemoteConnection(config);
-    console.log(`[RemoteBackup] 连接测试结果:`, JSON.stringify(result));
     
     if (result.success) {
       res.json({