feat(子弹): 添加紫色水晶子弹的爆炸效果和销毁逻辑

refactor(子弹基类): 重构销毁逻辑防止重复调用
fix(敌人): 调整小鸡boss的出现波次和激光音效
style(场景文件): 整理动画资源顺序

scripts/Contents/Bullets/PurpleCrystal.gd

@@ -3,3 +3,5 @@ class_name PurpleCrystal
 
 func ai():
 	PresetsAI.forward(self, rotation)
+func destroy():
+	EffectController.create(preload("res://components/Effects/PurpleCrystalExplosion.tscn"), global_position).shot()

scripts/Contents/Wave.gd

@@ -12,7 +12,7 @@ static var current: int = 0
 static var data: Array[Wave] = [
 	# entity, minCount, maxCount, isBoss, from, to, per
 	create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
-	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 0, INF, 5),
+	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 6),
 ]
 
 static func create(