(improvement) (common) add sys parameter setting (#384)

Co-authored-by: jolunoluo

launchers/standalone/src/main/resources/db/sql-update.sql

@@ -87,4 +87,7 @@ CREATE TABLE s2_sys_parameter
     id  int primary key AUTO_INCREMENT COMMENT '主键id',
     admin varchar(500) COMMENT '系统管理员',
     parameters text null COMMENT '配置项'
-);
+);
+
+--20231114
+alter table s2_chat_config add column `llm_examples` text COMMENT 'llm examples';