Why: archived card must carry the real GATE chain (reruns), merge cascade
and cleanup facts before the closure PR merges.
Evidence: PR 593 merged at 3c12ca5, three jobs first-round green; upstream
Frontend #98/#99 and RDM #420/#422 merged earlier in the cascade.
Impact: archive bookkeeping only.
Refs: PR #594
Why: branches merged into main had left their task cards open; backfill status and archive to prevent bookkeeping debt.
Evidence: feature-document-visualization-cockpit-i3.md(PR#593) — merges verified via git log --merges plus Gitea API squash lookup against origin/main.
Impact: .task/*.md moved to .task/archive/ with status backfilled; no code or submodule change.
Refs: task.sh close (card-autoclose-r1)