Why: Close automation filled headers (PR #381/#382) but the merge and
cleanup lines still described the in-progress state.
Evidence: CI ci/test green on both PR heads (one 405 race each,
auto-resynced); task-finish recycled both worktrees on 2026-10-11.
Impact: Archived task-card text only.
Refs: PR #381; PR #382; PR #384
Why: branches merged into main had left their task cards open; backfill status and archive to prevent bookkeeping debt.
Evidence: fix-artifact-version-dedupe.md(PR#382) — merges verified via git log --merges 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)