CHGNet secondary sensitivity arm — SEC-CHGNET-01/02 receipts (Fe–W calibration)

Receipts and observations for quest 01a07cd1 item 01a07cd1-00cf-789c-ba97-bc254fcf906d: non-preregistered CHGNet sensitivity arm on the validated bcc-Fe anchor and WFe2 C14 prototype, labeled run_role=secondary_arm in the Fe–W magnetization reference panel (dataset 01a07d46).