Halo Customed

Full Changelog: Here

• Added GROUP support for halo definitions, enabling multiple primitives and nested child inheritance structures.
• Added schema versioning for halo definition JSON.
• Added per-axis scale animation support (x/y/z).
• Added startup/ending transition animations (fade-in/fade-out).
• Refactored the transition animation system into a queue-based model for more stable sequencing.
• Fixed multiple transition issues, including post-transition timeline continuity and backfill behavior.
• Fixed an issue where ending animation from /halo hide did not play correctly on multiplayer servers.
• Updated EN/ZH quickstart and reference docs, including transition animation guidance.

• 为光环定义新增 GROUP 支持，可实现多图元组合与嵌套子组继承结构
• 为光环定义 JSON 新增 schema versioning（版本号机制）
• 新增按轴缩放动画支持（x/y/z）
• 新增启动/结束过渡动画（淡入/淡出）
• 将过渡动画系统重构为队列模型，提升时序稳定性
• 修复多项过渡动画问题，包括过渡后时间连续性与 backfill 行为
• 修复多人服务器中 /halo hide 结束动画无法正常播放的问题
• 更新中英文 quickstart 与 reference 文档，补充过渡动画说明