【功能新增】IoT: 添加 IoT 设备 MQTT 连接参数响应 VO，包含客户端 ID、用户名和密码字段

yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceMqttConnectionParamsRespVO.java

@@ -0,0 +1,25 @@
+package cn.iocoder.yudao.module.iot.controller.admin.device.vo.device;
+
+import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
+import com.alibaba.excel.annotation.ExcelProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+@Schema(description = "管理后台 - IoT 设备 MQTT 连接参数 Response VO")
+@Data
+@ExcelIgnoreUnannotated
+public class IotDeviceMqttConnectionParamsRespVO {
+
+    @Schema(description = "MQTT 客户端 ID", example = "24602")
+    @ExcelProperty("MQTT 客户端 ID")
+    private String mqttClientId;
+
+    @Schema(description = "MQTT 用户名", example = "芋艿")
+    @ExcelProperty("MQTT 用户名")
+    private String mqttUsername;
+
+    @Schema(description = "MQTT 密码")
+    @ExcelProperty("MQTT 密码")
+    private String mqttPassword;
+
+}