ci / vet-and-test (pull_request) Successful in 1m16s
Why: The backfill contract test used a fake PK-magic docx as its fixture; the new registration structural gate correctly refuses that shape, so the contract was no longer exercised. Evidence: The three affected runmgr tests pass locally with -count=1; the full combined suite receipt follows on the task card. Impact: Test fixture only; the gate behavior under test is unchanged. Refs: Dev task feature/pptx-register-structural-gate