feat: 编排保存时同步更新项目的venue_id

- 在saveDraftSchedule方法中添加同步逻辑
- 保存编排详情后自动更新martial_project.venue_id
- 保持编排系统和项目管理的数据一致性

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

src/main/java/org/springblade/modules/martial/service/impl/MartialScheduleServiceImpl.java

@@ -418,6 +418,18 @@ public class MartialScheduleServiceImpl extends ServiceImpl<MartialScheduleMappe
 				scheduleDetailMapper.updateById(detail);
 			}
 
+			// 1.5 同步更新项目的venue_id，保持数据一致性
+			if (groupDTO.getVenueId() != null) {
+				MartialScheduleGroup group = scheduleGroupMapper.selectById(groupDTO.getId());
+				if (group != null && group.getProjectId() != null) {
+					MartialProject project = projectService.getById(group.getProjectId());
+					if (project != null) {
+						project.setVenueId(groupDTO.getVenueId());
+						projectService.updateById(project);
+					}
+				}
+			}
+
 			// 2. 更新参赛者信息
 			if (groupDTO.getParticipants() != null) {
 				for (ParticipantDTO participantDTO : groupDTO.getParticipants()) {