guard cpu-note on _GPU_BROKEN; verified local boot

boot: cpu-only warmup; decorated gpu_warmup pass

zerogpu warm move at boot; cpu-note ordering fix

zerogpu scaffold: shared GPU entry point + cpu fallback

oscar-1 demo: laya-demo layout, 9 tabs, trained-strength tabs + honest per-tab notes

Oscar-1 demo: gradio app over the published 17m/32m deciders