Stamps the 19.8.0 CHANGELOG (_unreleased_ → 2026-06-26) for release.

19.8.0 highlights

• glTF / GLB scene loading (Tier 1) — level.load() a .glb like a Tiled map; node graph, primitives, materials, cameras, lights, animations
• glTF node animation + GLTFModel — rig-driven, hierarchy-preserving TRS animation via the Sprite-aligned API
• Sprite3d — 2.5D billboard sprites under Camera3d (cylindrical/spherical/fixed), frame animation, rotated/trimmed atlas parity, alpha cutout, flipX/flipY
• FrameAnimation — shared 2D/3D frame-animation engine behind Sprite + Sprite3d
• Light3d — directional + ambient mesh lighting; glTF KHR_lights_punctual
• Mesh material features — textureRepeat, textureFilter (decoupled from antiAlias), baseColorFactor/vertex colors, KHR_materials_unlit, alphaCutoff, emissive; OBJ/MTL textures auto-load
• Mesh.getBounds3d() / Camera3d.worldToScreen() / AABB3d + >65k-vertex meshes
• loader.preload() / loader.load() are await-able
• Perf — allocation-free glTF pose path; ~30% faster mesh batching (versioned typed-array remap)

No breaking changes — all additive / back-compat.

After merge: tag 19.8.0, dispatch publish.yml (package=melonjs), and cut the GitHub release. (@melonjs/debug-plugin@16.1.0, which peer-requires melonjs >=19.8.0, is already published.)