modify：添加日志

yanxuan-qc-change-system-biz/src/main/java/com/netease/mail/yanxuan/change/biz/biz/ChangeFlowBiz.java

@@ -599,7 +599,8 @@ public class ChangeFlowBiz {
                         changeFlowSubmitReq.getChangeExecProjectList());
                 changeExecRecords.forEach(exec -> changeFlowExecService.saveRecord(exec));
                 // 更新附件，覆盖操作，先删除，后插入
-                changeFileService.deleteByChangeRecordId(changeRecord.getId());
+                Integer fileCount = changeFileService.deleteByChangeRecordId(changeRecord.getId());
+                log.debug("[CHANGE_FLOW_SUBMIT] delete fileCount:{}", fileCount);
                 List<ChangeFlowFile> files = changeFlowSubmitReq.getChangeFiles();
                 if (CollectionUtils.isNotEmpty(files)) {
                     List<ChangeFile> changeFiles = buildChangeFileRecord(changeRecord.getId(), files, FileTypeEnum.CHANGE.getType());
@@ -610,6 +611,8 @@ public class ChangeFlowBiz {
                     List<ChangeFile> changeFiles = buildChangeFileRecord(changeRecord.getId(), uploadFiles, FileTypeEnum.UPLOAD.getType());
                     changeFiles.forEach(file -> changeFileService.saveRecord(file));
                 }
+                log.debug("[CHANGE_FLOW_SUBMIT] files:{}, uploadFiles:{}", JSON.toJSONString(files),
+                    JSON.toJSONString(uploadFiles));
                 HashMap<String, Object> param = new HashMap<>();
                 param.put("changeId", changeRecord.getFlowId());
                 param.put("changeSubject", ChangeSubjectEnum.getChangeSubjectEnum(changeRecord.getChangeSubject()).getDesc());