4.6.8 supplement (#831)

Co-authored-by: heheer <71265218+newfish-cmyk@users.noreply.github.com>

packages/service/common/response/constant.ts

@@ -1,6 +1,7 @@
 export enum sseResponseEventEnum {
   error = 'error',
-  answer = 'answer',
+  answer = 'answer', // animation stream
+  response = 'response', // direct response, not animation
   moduleStatus = 'moduleStatus',
   appStreamResponse = 'appStreamResponse' // sse response request
 }