fix(db): fix database connection handling * feature/20251219_myh: (3 commits) fix(db): fix database connection handling fix(db): fix database connection handling fix(db): fix database connection handling Signed-off-by: Eternity <1533512157@qq.com> Reviewed-by: zhuwenhui5566@163.com <zhuwenhui5566@163.com> Merged-by: zhuwenhui5566@163.com <zhuwenhui5566@163.com> CR-link: https://codeup.aliyun.com/redbearai/python/redbear-mem-open/change/42