fix: 统一工单优先级类型为Integer

修改：
- TrafficThresholdConfig.orderPriority: String -> Integer
- CleanOrderCreateEventDTO.priority: String -> Integer
- CleanOrderCreateEventHandler: 移除Integer.parseInt调用

与数据库tinyint类型保持一致

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/CleanOrderCreateEventHandler.java

@@ -103,7 +103,7 @@ public class CleanOrderCreateEventHandler implements RocketMQListener<String> {
         createReq.setTitle(generateOrderTitle(event));
         createReq.setDescription(generateOrderDescription(event));
         createReq.setPriority(PriorityEnum.fromPriority(event.getPriority() != null ?
-                Integer.parseInt(event.getPriority()) : 2).getPriority());
+                event.getPriority() : 2).getPriority());
         createReq.setAreaId(event.getAreaId());
 
         // 扩展字段

viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/CleanOrderCreateEventDTO.java

@@ -53,7 +53,7 @@ public class CleanOrderCreateEventDTO {
     /**
      * 优先级（0=P0紧急 1=P1重要 2=P2普通）
      */
-    private String priority;
+    private Integer priority;
 
     /**
      * 触发数据（JSON 格式的附加信息）