(improvement)(Chat)The chat history also returns the time taken for parsing and SQL generation (#1084)

Co-authored-by: jolunoluo

launchers/standalone/src/test/resources/db/schema-h2.sql

@@ -38,6 +38,7 @@ CREATE TABLE IF NOT EXISTS `s2_chat_query`
     `score`             int DEFAULT '0',
     `feedback`          varchar(1024) DEFAULT '',
     `similar_queries`          varchar(1024) DEFAULT '',
+    `parse_time_cost` varchar(1024) DEFAULT '',
     PRIMARY KEY (`question_id`)
 );