MLX native runtime pack v0.1.0

libmlx + libmlxc + libjaccl + mlx.metallib (arm64, from brew mlx/mlx-c on 2026-06-12), load-commands rewritten for a self-contained directory. Downloaded automatically on first run into ~/Library/Caches/mlx-bun/. sha256: 90fa6a85bae648910bb957df3757270d581caf3294a06fb5195b44c5937d99da