Review gate — wave-4 fix batch passed: all seven pg-fix resolutions verified against review 002's failure mechanisms (code-read + live gates), one minor doc mismatch fixed inline (outbox wake comment's 'scheduler's fire-wake' claim — the tick fires issue no wake and schedule() can never target a reserved backing queue); no pinned posture regressed; pg suite green vs harness twice + compose determinism 20/20 re-verified; wave 5 may decompose (task review-wave-4-fixes)

alkstore-postgres/src/tx.rs

@@ -607,8 +607,10 @@ impl TxHandle for PgTxHandle {
                 .enqueue_row(client, &queue, bytes, &opts, outbox_default_stamps())
                 .await?;
             // The outbox's posture-parity twin of `enqueue_tx`'s wake:
-            // the derived backing-queue name is the channel (the
-            // scheduler's fire-wake targets the same name).
+            // the derived backing-queue name is the channel. No other
+            // path targets it — `schedule()` rejects reserved names, so
+            // the outbox's backing queue stays out of the scheduler's
+            // reach (ADR-021 §3).
             wake_tx(client, &queue).await;
             Ok(id)
         })