refactor(Characters/Rooster): 调整子弹折射和分裂参数

移除子弹分裂参数，将子弹折射次数从2增加到3
更新武器从ChainGun到PurpleCrystal
优化子弹折射逻辑，避免重复目标
使用call_deferred安全添加子节点

scripts/Contents/Characters/Rooster.gd

@@ -12,8 +12,7 @@ func register():
 				EffectController.create(ComponentManager.getEffect("BloodFall"), texture.global_position).shot()
 	)
 	if !WorldManager.isRelease():
-		fields[FieldStore.Entity.BULLET_SPLIT] = 2
-		fields[FieldStore.Entity.BULLET_REFRACTION] = 2
+		fields[FieldStore.Entity.BULLET_REFRACTION] = 3
 func ai():
 	texture.play("walk")
 	var direction = Vector2(