Pulls omarchy-mlx, omarchy-mlx-vulkan, omarchy-ane-dkms and mil-hwx-compiler: MLX on the GPU and Core ML models on the Neural Engine. Opt-in only; installs through the Install > AI row. Depends on #745 (omarchy-ane-dkms) and #764 (omarchy-mlx) publishing first: CI resolves each package against published edge.