Third review round follow-through: enqueue_tx stamp source, sweep_expired handle form, with_tx signature, and B-block ambiguity pins

docs/architecture/README.md

@@ -1,6 +1,6 @@
 ---
 status: draft
-last_updated: 2026-10-07 (ADR-021 — third review round resolved)
+last_updated: 2026-10-07 (ADR-021 + third-round follow-through resolved)
 ---
 
 # alkstore — Architecture
@@ -27,7 +27,7 @@ pending architecture review and OQ resolution.
 | [core-contract.md](core-contract.md) | draft | The unified trait surface, delivery guarantees, tx seam | OQ-10 (resolved) |
 | [engine-sqlite.md](engine-sqlite.md) | draft | SQLite engine: forked-substrate/rusqlite mapping | OQ-06 (resolved), OQ-12 (resolved), OQ-13 (resolved) |
 | [engine-postgres.md](engine-postgres.md) | draft | Postgres engine: tokio-postgres/LISTEN mapping | OQ-08 (resolved), OQ-12 (resolved), OQ-13 (resolved) |
-| [queues.md](queues.md) | draft | Queue/scheduler/outbox semantics depth (resolved: ADR-009/ADR-010) | OQ-06 (resolved) |
+| [queues.md](queues.md) | draft | Queue/scheduler/outbox semantics depth (resolved: ADR-009/ADR-010) | OQ-05 (resolved), OQ-09 (resolved), OQ-06 (resolved) |
 | [deployment.md](deployment.md) | draft | Host semantics, connection budgets, knobs, matrix | OQ-08 (resolved) |
 | [open-questions.md](open-questions.md) | draft | OQ tracker (promoted from OQ-ST register) | — |