Corrupt .GLB (glTF 2.0 Binary) & Kaydara .FBX Chunk-Length, Skin-Weight & Accessor Surgeon

Deterministic Khronos glTF 2.0 binary ('glTF' JSON/BIN 4-byte boundary) & Kaydara FBX v7400+ 64-bit node-offset zlib parser + L1 skinning-weight simplex normalizer + degenerate zero-area triangle & NaN tangent fixer engine (.glb, .gltf, .fbx) built for Unity, Unreal Engine, Three.js / WebGL, Blender — zero-upload ephemeral Wasm RAM execution.