The quick.md fix in this PR changes the file content, so its per-runtime
content hash in the golden-install-parity snapshot (tests/golden-install-parity.test.cjs,
Linux/macOS-only) is stale. Regenerated with UPDATE_GOLDEN=1 on Linux
(WSL); only the gsd-core/workflows/quick.md hash line changed in each of
the 16 runtime fixtures — no other drift.