Changed
- Clean-room rewrite of entire avatar rendering system (14 files, ~9,500 lines) from public specifications
- BinaryReader: rewrote as DataView wrapper with camelCase API and bounds checking
- RbxmParser: replaced monolithic switch with Map-based decoder registry
- MeshParser: extracted shared helpers per format era (text, binary, chunked)
- AnimationParser: Shepperd's method for quaternion conversion, named lookup tables
- DracoParser: class-based EntropyDecoder/BitAccumulator architecture
- Animator: flat easing function registry, typed PlaybackState interface
- AssetCache: generic LRU cache with TTL eviction and in-flight deduplication
- AvatarAsset: Map-based dispatch table for asset type handlers
- Avatar: renamed all internal methods and fields, section-based code organization
- RigBuilder: SkeletonCache class with factory functions and hardcoded fallback skeletons
- Composites: removed legacy dirty flag naming
- avatarConstants/avatarScaleConstants: reorganized exports and added utility functions