Halo

Full Changelog: Here

• Added glow and alpha properties to the animation system, along with inherit_glow and inherit_alpha fields to control whether the current group inherits attributes from its parent node.
• Fixed issues with the transition between startup/shutdown animations and persistent animations; enabled seamless chaining between startup and shutdown animations (e.g., triggering "/halo hide" during the startup animation).
• Added rotation support to transition animations, controlled via from, to, degrees, easing, and duration parameters.
• Added a face_camera field to billboard primitives to ensure they always face the camera.
• Refactored the anchor point algorithm, upgrading it from 5DOF to 6DOF.
• Exposed an API allowing other mods to register and provide halo anchors, enabling them to take over halo rendering for specific UUIDs or entity types (see docs/*/API.md for details).
• Rewrote player halo rendering using the aforementioned API; halos are now precisely locked to the player's head.

• 将发光强度（glow）和透明度（alpha）引入动画系统，同时引入inherit_glow和inherit_glow字段，用于控制当前组是否继承父节点属性
• 修复过渡动画和常驻动画衔接不畅的问题，并让启动动画与结束动画可以衔接（在启动动画过程中/halo hide）
• 将旋转（rotation）引入过渡动画，使用from、to、degrees、easing、duration控制
• 为billboard图元（primitive）增加字段face_camera，使其面向摄像机
• 重整锚点算法，由5DOF变为6DOF
• 开放API，允许其他模组注册和提供光环锚点，以此来接管特定uuid/实体类型的光环渲染，详见docs/*/API.md
• 利用上述API重写玩家光环渲染，现在光环精确的锁定在玩家头部