Rewrite ComfyUI.md to match reality: comfyui-rocm:gfx1151 built from Containerfile.comfyui on AMD's gfx1151 base, device passthrough, video group only (render is unmappable in rootless), data under /home/dank/comfyui-data, boot-persistent via a user systemd unit. Mark research 'way 1' as applied and update the repo-consequence section (the CPU config is no longer the default).