feat: 添加SCBlock和Bengbeng子弹类型及相关资源

feat(角色): 为Kernyr和CyberCat添加新攻击类型

refactor(角色): 更新Kernyr角色贴图和显示名称

feat(关卡): 调整测试关卡配置和敌人波次

style: 更新子弹资源文件及导入配置

scripts/Contents/Bullets/Bengbeng.gd

@@ -0,0 +1,12 @@
+extends BulletBase
+class_name BengbengBullet
+
+func spawn():
+	hitbox.disabled = true
+func ai():
+	texture.global_rotation = 0
+	PresetBulletAI.forward(self , position.angle_to_point(launcher.currentFocusedBoss.position))
+	if is_instance_valid(launcher.currentFocusedBoss):
+		if launcher.currentFocusedBoss.position.distance_to(position) < 125 && hitbox.disabled:
+			EffectController.create(ComponentManager.getEffect("NuclearExplosion"), position).shot()
+			hitbox.disabled = false