feat(武器系统): 添加七彩矢武器及其相关资源

添加新的七彩矢武器系统，包括武器脚本、子弹特效、着色器和动画资源
为Rooster角色添加新武器选项
实现光效追踪和颜色渐变效果
调整窗口模式为2（全屏）

resources/bullets/light-express/Sun_Dance.webp.import

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