refactor(cache): 重构 CacheMemory 实现

- 使用 sync.Map替代自定义 Map 结构- 优化缓存过期处理逻辑
- 改进通配符删除功能
- 随机触发缓存清理机制

code/makecode.go

@@ -158,7 +158,7 @@ func (that *MakeCode) Db2JSON(db *db.HoTimeDB, config Map) {
 
 		tableInfo := make([]Map, 0)
 		if db.Type == "mysql" {
-			tableInfo = db.Select("INFORMATION_SCHEMA.COLUMNS", "COLUMN_NAME AS name,COLUMN_TYPE AS type,COLUMN_COMMENT AS label,IS_NULLABLE AS must,COLUMN_DEFAULT AS  dflt_value", Map{"AND": Map{"TABLE_SCHEMA": db.DBName, "TABLE_NAME": v.GetString("name")}})
+			tableInfo = db.Select("INFORMATION_SCHEMA.COLUMNS", "COLUMN_NAME AS name,COLUMN_TYPE AS type,COLUMN_COMMENT AS label,IS_NULLABLE AS must,COLUMN_DEFAULT AS  dflt_value", Map{"AND": Map{"TABLE_SCHEMA": db.DBName, "TABLE_NAME": v.GetString("name")}, "ORDER": "ORDINAL_POSITION"})
 		}
 		if db.Type == "sqlite" {
 			tableInfo = db.Query("pragma table_info([" + v.GetString("name") + "]);")