fix: converge broker failures without retry

trex_core/adapters/persistence/sql/023_remove_auto_order_venue.sql

@@ -0,0 +1,16 @@
+-- GitHub #61: remove Core-owned wall-clock AUTO routing.
+-- Existing durable AUTO values are normalized before the stricter constraints.
+UPDATE daily_slot SET venue = 'SOR' WHERE venue = 'AUTO';
+UPDATE ledger_outbox SET venue = 'SOR' WHERE venue = 'AUTO';
+
+ALTER TABLE daily_slot
+    DROP CONSTRAINT IF EXISTS daily_slot_venue_check;
+ALTER TABLE daily_slot
+    ADD CONSTRAINT daily_slot_venue_check
+    CHECK (venue IN ('KRX', 'NXT', 'SOR'));
+
+ALTER TABLE ledger_outbox
+    DROP CONSTRAINT IF EXISTS ledger_outbox_venue_check;
+ALTER TABLE ledger_outbox
+    ADD CONSTRAINT ledger_outbox_venue_check
+    CHECK (venue IN ('KRX', 'NXT', 'SOR'));