Why: Dev main pinned an unmerged Backend commit; #211 landed it before re-pinning to U8. Evidence: transportsb829de2and6d9bd7capplied; Backend #211 HEAD 78ae397 and #210 HEAD d7be3fd CI success. Impact: Task card only. Refs: Backend PR #210, #211 Co-authored-by: Cursor <cursoragent@cursor.com>