Why: the card was folded into PR #109 already marked complete, so
task-close skipped it; archive it manually per the no-open-cards rule
and advance the frontend gitlink past the mimosa-ignore chore (#26).
Evidence: .task has no deliverable-docx-r1.md left; precheck [cards]
to be re-run after merge; frontend -> de38791 (chore #26 merged).
Impact: housekeeping only; no code paths touched.
Refs: task feature/deliverable-docx-r1 (PR #109), frontend PR #26