fix: 添加部署诊断信息和目录检查

- 添加 SSH 连接测试
- 检查并创建项目目录
- 改进错误提示

Jenkinsfile

@@ -183,11 +183,20 @@ pipeline {
                     services.each { service ->
                         echo "Deploying ${service}..."
                         
+                        // 诊断信息
+                        sh """
+                            echo "=== 诊断信息 ==="
+                            echo "当前用户: \$(whoami)"
+                            echo "当前目录: \$(pwd)"
+                            echo "测试 SSH 连接..."
+                            ssh -o StrictHostKeyChecking=no -o ConnectTimeout=5 root@172.19.0.1 'echo "SSH 连接成功"; hostname; pwd' || echo "SSH 连接失败"
+                        """
+                        
                         // 通过 SSH 在宿主机上执行部署命令
                         // Jenkins 容器网络: 1panel-network, Gateway: 172.19.0.1
                         sh """
                             ssh -o StrictHostKeyChecking=no root@172.19.0.1 '
-                                cd /opt/aiot-platform-cloud
+                                cd /opt/aiot-platform-cloud || { echo "目录不存在，创建中..."; mkdir -p /opt/aiot-platform-cloud; exit 1; }
                                 docker compose -f docker-compose.core.yml pull ${service}
                                 docker compose -f docker-compose.core.yml up -d ${service}
                             '