[Optimized] Completely rewritten the database engine, the current database system will be more stable and efficient. (Some database setting options in Config.yml have been changed (the new version can still use the settings of the old version))
[Optimized] Optimized the asynchronous thread pool and moved some asynchronous tasks in the old version that require active creation of independent threads into the thread pool for processing.
[Fixed] Fixed a SERIOUS BUG: In the old version, if the database connection fails, the player signing-in will cause the player's data to be lost.
[Fixed] Fixed a bug in older versions where using the rollback function may not be able to perform automatic backup.