fix: 设备添加，默认告警码为0，告警消息排序修改，sensorErrorCode处理修改。

intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java

@@ -971,8 +971,8 @@ public class IotController extends BaseController {
             Map<String, Object> deviceProperties = iotDeviceService.queryDeviceProperties(iotId);
 
             // 初始化警告码：默认探头未校准 (OxyDetectorNoCorrect)
-            int warnCode = DefineDeviceWarnCode.OxyDetectorNoCorrect;
-
+//            int warnCode = DefineDeviceWarnCode.OxyDetectorNoCorrect;
+            int warnCode = DefineDeviceWarnCode.None;
             // 如果设备离线，添加设备离线警告
             if (status != null && "OFFLINE".equalsIgnoreCase(status)) {
                 warnCode |= DefineDeviceWarnCode.DeviceOffline;
@@ -1400,9 +1400,8 @@ public class IotController extends BaseController {
             // 获取设备属性
             Map<String, Object> deviceProperties = iotDeviceService.queryDeviceProperties(iotId);
 
-            // 初始化警告码：默认探头未校准 (0x0001)
-            int warnCode = 0x0001;
-
+            // 初始化警告码
+            int warnCode = DefineDeviceWarnCode.None;
             // 查询该用户已有水质检测仪的名称，找到第一个不冲突的序号
             java.util.List<Device> existDevices = deviceMapper.selectList(
                 new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<Device>()

intc-modules/intc-iot/src/main/java/com/intc/iot/handler/DeviceDataHandler.java

@@ -1996,13 +1996,22 @@ public class DeviceDataHandler {
      */
     private void handleSensorErrorCode(String deviceName, JSONObject params) {
         try {
-            Integer rawCode = params.getInt("sensorErrorCode");
-            if (rawCode == null) {
-                // 部分设备/数据包不携带此字段，属于正常情况
-                log.debug("[探头错误码] 设备上报数据不包含 sensorErrorCode 字段: {}", deviceName);
+            // 判断字段是否存在
+            if (!params.containsKey("sensorErrorCode")) {
                 return;
             }
-            int sensorErrorCode = rawCode;
+            // 字段存在但为空字符串时，视为无故障（0），清除探头相关告警位
+            Object rawValue = params.get("sensorErrorCode");
+            int sensorErrorCode;
+            if (rawValue == null || "".equals(rawValue.toString().trim())) {
+                sensorErrorCode = 0;
+            } else {
+                Integer parsed = params.getInt("sensorErrorCode");
+                if (parsed == null) {
+                    return;
+                }
+                sensorErrorCode = parsed;
+            }
 
             // 查询设备，需要 id / warnCode / isOxygenUsed / pondId / deadTime
             Device device = deviceMapper.selectOne(