训练语料（分页接口返回值添加创建人和创建时间）

api/fields/intention_fields.py

@@ -78,6 +78,8 @@ intention_corpus_detail_fields = {
     "question_config": fields.String,
     "intention": fields.Nested(intention_page_fields),
     "similarity_questions": fields.List(fields.Nested(intention_corpus_similarity_question_fields)),
+    "created_by": fields.String,
+    "created_at": TimestampField,
 }
 
 intention_detail_fields = {