fix(doctorstation): 解决诊疗项目执行科室缺失问题

- 在批量签发前验证诊疗项目的执行科室是否已设置
- 对于未选择执行科室的诊疗项目显示警告信息并阻止签发
- 当诊疗项目没有设置执行科室时默认使用患者的就诊科室
- 在后端服务中增加对诊疗项目执行科室的非空校验
- 确保诊疗项目签发流程中执行科室信息完整有效

openhis-server-new/openhis-application/src/main/java/com/openhis/web/doctorstation/appservice/impl/DoctorStationAdviceAppServiceImpl.java

@@ -1075,6 +1075,12 @@ public class DoctorStationAdviceAppServiceImpl implements IDoctorStationAdviceAp
         }
 
         for (AdviceSaveDto adviceSaveDto : insertOrUpdateList) {
+            // 🔧 Bug Fix #238: 诊疗项目执行科室非空校验
+            if (adviceSaveDto.getAdviceType() != null && adviceSaveDto.getAdviceType() == 3) {
+                if (adviceSaveDto.getPositionId() == null) {
+                    throw new ServiceException("诊疗项目必须选择执行科室");
+                }
+            }
             serviceRequest = new ServiceRequest();
             serviceRequest.setId(adviceSaveDto.getRequestId()); // 主键id
             serviceRequest.setStatusEnum(is_save ? RequestStatus.DRAFT.getValue() : RequestStatus.ACTIVE.getValue());// 请求状态