privacy: scrub host chip/OS from model card

README.md

@@ -77,7 +77,7 @@ pip install coreai-catalog && coreai-catalog install act-aloha-cube
 
 - **Gate A (structure): passed** — the bundle's layout + metadata were
   validated on real hardware; the graphs load.
-- **Gate B — action_parity: 100.0% min chunk-cosine · 0.0 max normalized MAE** vs the fp16 reference over 8 frames of `8 fixed-seed observations (deterministic ACT: the export is exact regardless of input; realistic-episode eval is future work)`, 1-step, fixed-noise (measured on Apple M4 Max).
+- **Gate B — action_parity: 100.0% min chunk-cosine · 0.0 max normalized MAE** vs the fp16 reference over 8 frames of `8 fixed-seed observations (deterministic ACT: the export is exact regardless of input; realistic-episode eval is future work)`, 1-step, fixed-noise (measured on Apple Silicon).
 - This certifies the export is **numerically faithful to the source policy** — it
   does **NOT** certify real-world task success, embodiment transfer, or
   closed-loop stability. Closed-loop success-rate eval (LIBERO/ManiSkill):