fix: converge broker failures without retry

tests/application/test_execution_policy.py

@@ -253,6 +253,33 @@ class TestOrderResultLogging:
         assert all(r.levelno == logging.ERROR for r in rejects)
         assert "호가단위" in rejects[0].getMessage()
 
+    def test_sell_reject_returns_to_holding_without_new_attempt(self):
+        broker = _RecordingBroker()
+        repo, _, intents, execution = _wire(broker)
+        slot_id = _buy_to_pending(intents)
+        assert slot_id is not None
+        execution.run_once()
+        holding = repo.fetch_slot(slot_id)
+        assert holding is not None and holding.status is SlotState.HOLDING
+
+        intents.submit_sell(SellIntent(intent_id="s1", slot_id=slot_id))
+        broker.submit_order = lambda req: (
+            broker.orders.append(req)
+            or OrderAck(accepted=False, reason="broker_rejected", venue=req.venue)
+        )
+
+        result = execution.run_once()
+        recovered = repo.fetch_slot(slot_id)
+        assert recovered is not None
+        assert recovered.status is SlotState.HOLDING
+        assert recovered.qty == 10
+        assert recovered.broker_order_id is None
+        assert result.rolled_back == 1
+        assert len([order for order in broker.orders if order.side == "sell"]) == 1
+
+        execution.run_once()
+        assert len([order for order in broker.orders if order.side == "sell"]) == 1
+
     def test_normal_fill_emits_no_error(self, caplog):
         broker = _RecordingBroker()
         repo, svc, intents, execution = _wire(broker)