增加语料内容为空的判断

ai-analytic-center-biz/src/main/java/com/volvo/ai/analytic/center/service/impl/TmTelephoneCorpusServiceImpl.java

@@ -113,6 +113,10 @@ public class TmTelephoneCorpusServiceImpl extends ServiceImpl<TmTelephoneCorpusM
 				log.info("电话语料时长小于10秒，不进行dify处理");
 				return;
 			}
+			if (segments == null || segments.isEmpty()) {
+				log.info("电话语料内容segments为空，不进行dify处理");
+				return;
+			}
 			// 遍历 segments
 			StringBuffer chatList = new StringBuffer();
 			segments.stream()