【解决todo】AI chat 返回的 message 类型不正确

yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/service/impl/AiChatServiceImpl.java

@@ -132,7 +132,7 @@ public class AiChatServiceImpl implements AiChatService {
             contentBuffer.append(newContent);
             // 响应结果
             return new AiChatMessageSendRespVO().setSend(BeanUtils.toBean(userMessage, AiChatMessageSendRespVO.Message.class))
-                    .setReceive(BeanUtils.toBean(userMessage, AiChatMessageSendRespVO.Message.class).setContent(newContent));
+                    .setReceive(BeanUtils.toBean(assistantMessage, AiChatMessageSendRespVO.Message.class).setContent(newContent));
         }).doOnComplete(() -> {
             chatMessageMapper.updateById(new AiChatMessageDO().setId(assistantMessage.getId()).setContent(contentBuffer.toString()));
         }).doOnError(throwable -> {