Why: follow-up unit closed the planned receipt pass-through gap; package prepared for user stage 6 review. Evidence: Backend CI runs 4409/4410 on 16f98b8; /tmp/o2i2-20261020/o2-i2b-receipt.json Impact: task card and review package only. Refs: docs/superpowers/plans/2026-10-19-fast-slow-o2-route-contract-eof-plan.md Co-authored-by: Cursor <cursoragent@cursor.com>