feat(武器系统): 新增红水晶武器及相关资源

添加红水晶武器系统，包括武器、子弹、特效和音效资源
- 新增红水晶武器脚本及场景，实现爆炸伤害功能
- 添加红水晶子弹逻辑，支持半径爆炸效果
- 加入红水晶爆炸特效和音效
- 更新角色武器库包含红水晶武器
- 调整现有水晶武器描述和数值
- 扩展子弹基类支持首帧回调
- 更新特效控制器支持音效播放等待

scripts/Contents/Bullets/RedCrystal.gd

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+extends BulletBase
+class_name RedCrystalBullet
+
+var radius: float = 0
+
+func register():
+	hitbox.shape = hitbox.shape.duplicate()
+func ai():
+	PresetBulletAI.forward(self, rotation)
+	speed = (1 - lifeTimePercent()) * initialSpeed
+func destroy(_beacuseMap: bool):
+	hitbox.shape.radius = radius
+	EffectController.create(ComponentManager.getEffect("RedCrystalExplosion"), global_position).shot()
+	await TickTool.millseconds(100)

scripts/Contents/Bullets/RedCrystal.gd.uid

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+uid://bv848wj2ko0y0

scripts/Contents/Weapons/RedCrystal.gd

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+@tool
+extends Weapon
+class_name RedCrystalWeapon
+
+func update(to: int, origin: Dictionary, _entity: EntityBase):
+	origin["atk"] += 2 * to * soulLevel
+	origin["radius"] += 4 * to * soulLevel
+	return origin
+func attack(entity: EntityBase):
+	var weaponPos = entity.findWeaponAnchor("normal")
+	for bullet in BulletBase.generate(ComponentManager.getBullet("RedCrystal"), entity, weaponPos, (get_global_mouse_position() - weaponPos).angle()):
+		if bullet is RedCrystalBullet:
+			bullet.baseDamage = readStore("atk")
+			bullet.radius = readStore("radius")
+	return true

scripts/Contents/Weapons/RedCrystal.gd.uid

@@ -0,0 +1 @@
+uid://dmsjasfucknxq