v1.1.0 管理后台+对话增强：/admin全数据CRUD与站点配置；快捷语句点击自动提交；Markdown回答渲染；参考资讯折叠链接；实体识别标记与快速查看卡片(entity_linker)

db.py

@@ -138,6 +138,12 @@ CREATE TABLE IF NOT EXISTS persons (
   created_at TEXT DEFAULT (datetime('now','localtime'))
 );
 
+CREATE TABLE IF NOT EXISTS site_config (
+  key TEXT PRIMARY KEY,
+  value TEXT NOT NULL,
+  updated_at TEXT DEFAULT (datetime('now','localtime'))
+);
+
 CREATE INDEX IF NOT EXISTS idx_players_team ON players(team_id);
 CREATE INDEX IF NOT EXISTS idx_players_name ON players(name);
 CREATE INDEX IF NOT EXISTS idx_games_time ON games(game_time);