refactor(iot,ops): 重构客流计数器重置为按区域删除阈值 key

- ResetTrafficCounterReqDTO: 废弃 newBaseValue 字段
- IotDeviceControlApiImpl: 重置逻辑改为通过区域关联查询后删除阈值 key
- CleanOrderEventListener: 简化异步重置调用，移除 triggerData 依赖

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

viewsh-module-iot/viewsh-module-iot-api/src/main/java/com/viewsh/module/iot/api/device/dto/ResetTrafficCounterReqDTO.java

@@ -25,8 +25,8 @@ public class ResetTrafficCounterReqDTO {
     @NotNull(message = "设备ID不能为空")
     private Long deviceId;
 
-    @Schema(description = "新的基准值", requiredMode = Schema.RequiredMode.REQUIRED, example = "1500")
-    @NotNull(message = "基准值不能为空")
+    @Schema(description = "新的基准值（已废弃，无需传递）", example = "1500")
+    @Deprecated
     private Long newBaseValue;
 
     @Schema(description = "关联的工单ID（用于日志追踪）", example = "12345")