Added

• Added a new config option to toggle slide ground particles on or off.
• 新增配置项，可开关滑铲地面粒子。

Fixed

• Fixed a rare issue where pressing the slide key sometimes did nothing — the slide input would be silently ignored for a short while after a failed attempt.
• The slide now stops only when you actually hit a wall. Previously, it could stop on flat ground or gentle slopes due to an overly strict collision check.
• 修复偶尔按下滑铲键却没反应的问题：以前启动失败后会有一段“隐性冷却”，期间再按也无效。
• 滑铲现在只有真正撞到墙才会中断。以前在平地或缓坡上可能因碰撞判定过于严格而莫名停下。