Optimized the backup save mechanism. In addition to the original system that backed up every 10 minutes, it now also includes separate backups every 5 minutes and every 15 minutes to better manage and prevent unforeseen issues. To restore a backup, open the save location from the game start menu, find the desired backup (labeled "BackupSave5min," "BackupSave10min," or "BackupSave15min"), back up the current "Save_Current," delete the original "Save_Current," and move the backup file to the original save location. Improved the display of remaining money and prosperity value on the store page. Optimized the display of total income figures on the settlement panel. Fixed a bug where splitting limited items incorrectly reset the expiration date for limited goods. New feature: In the backpack interface, you can now directly swap the position of items by selecting one item and right-clicking on another. Fixed a bug that could occur when using the town's building swap feature.