feat(Statemachine): 添加获取周期计时器方法并增强子弹过滤逻辑

为EntityBase添加getCycleTimer方法以直接获取计时器
修改CycleTimer的forceFilter方法以检查子弹是否正在销毁
更新InfinitySword的hitBullet逻辑以处理内部伤害子弹

scripts/Contents/Bullets/InfinitySword.gd

@@ -20,4 +20,9 @@ func hitBullet(bullet: BulletBase):
 	if !is_instance_valid(launcher): return
 	if BulletTool.canDamage(bullet, launcher):
 		baseDamage *= rate2 ** bullet.getDamage()
-		InternalDamageBullet.generateBall(launcher, bullet.launcher, sqrt(baseDamage))
+		var cycler = launcher.getCycleTimer("internalDamages")
+		if cycler is CycleTimer:
+			if len(cycler.bullets) > 0:
+				InternalDamageBullet.generateBall(launcher, bullet.launcher, sqrt(baseDamage))
+				cycler.bullets[0].tryDestroy()
+				cycler.forceFilter()