Why: branches merged into main had left their task cards open; backfill status and archive to prevent bookkeeping debt.
Evidence: feature-binary-doc-index.md(PR#114) feature-input-queue.md(PR#115) feature-preview-sniff-fallback.md(PR#96) fix-empty-create-task.md(PR#116) fix-mimosa-triage.md(PR#117) svc-remote-source.md(PR#102) — 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)
