Carpet DDS Addition

📄 License & Attribution / 许可与署名

• 补充内置 CozyUI+ 假人界面资源的作者署名、上游来源、修改说明与 GPL-3.0 完整许可文本(Added complete CozyUI+ attribution, source, modification notice, and GPL-3.0 license text for the bundled fake-player UI resources.)。

• CozyUI+ 相关资源继续作为可选内置资源包提供，默认不启用；DDS 功能逻辑无变化(The CozyUI+ adaptation remains an optional built-in resource pack and is disabled by default; no DDS gameplay behavior changed.)。