fix: preserve sell event routing owner

tests/adapters/messaging/test_publish_reliability.py

@@ -101,6 +101,31 @@ class TestPublishRetryOnHalfOpen:
 
         assert reconnect_called["yes"], "_force_reconnect must be called on first failure"
 
+    def test_sell_retry_reuses_identical_payload_and_mandatory_flag(self):
+        t = _make_transport()
+        _inject_connected(t)
+        payload = {
+            "slot_id": "slot-95",
+            "event_type": "slot_filled_sell",
+            "sequence_at": 11,
+        }
+        routing_key = "slot_filled_sell.SELL-B.005930"
+
+        with (
+            patch.object(
+                t,
+                "_do_basic_publish",
+                side_effect=[OSError("first attempt"), None],
+            ) as publish,
+            patch.object(t, "_force_reconnect"),
+        ):
+            t.publish_event(routing_key, payload)
+
+        assert publish.call_count == 2
+        assert publish.call_args_list[0] == publish.call_args_list[1]
+        assert publish.call_args_list[0].args[0] == routing_key
+        assert publish.call_args_list[0].kwargs["mandatory"] is True
+
 
 # ---------------------------------------------------------------------------
 # REQ-091 AC-2: retry also fails → TransportUnavailableError raised

tests/adapters/messaging/test_rabbitmq_transport.py

@@ -5,6 +5,7 @@ queue/routing keys to avoid colliding with other tests or runs.
 """
 from __future__ import annotations
 
+import json
 import os
 import threading
 import time
@@ -149,6 +150,63 @@ def test_event_publish_and_per_strategy_consume(mq_url):
         _drain_queue(mq_url, queue_b)
 
 
+def test_sell_event_retry_preserves_payload_and_strategy_route(mq_url, monkeypatch):
+    """AC-0039: live retry keeps identity and uses mandatory confirmed publish."""
+    suffix = uuid.uuid4().hex[:8]
+    owner = f"SELL-{suffix}"
+    other_owner = f"OTHER-{suffix}"
+    queue = topology.strategy_event_queue_name(owner)
+    other_queue = topology.strategy_event_queue_name(other_owner)
+    routing_key = topology.event_routing_key("slot_filled_sell", owner, "005930")
+    payload = {
+        "slot_id": f"slot-{suffix}",
+        "event_type": "slot_filled_sell",
+        "sequence_at": 7,
+    }
+    publisher = RabbitMQTransport(mq_url, timeout=5.0)
+    attempts: list[tuple[str, bytes, bool]] = []
+    try:
+        publisher.declare_topology()
+        publisher.declare_strategy_queue(
+            queue, topology.strategy_event_binding_pattern(owner),
+        )
+        publisher.declare_strategy_queue(
+            other_queue, topology.strategy_event_binding_pattern(other_owner),
+        )
+        original_publish = publisher._do_basic_publish
+
+        def fail_first_then_publish(rk: str, body: bytes, *, mandatory: bool) -> None:
+            attempts.append((rk, body, mandatory))
+            if len(attempts) == 1:
+                raise OSError("forced first-attempt failure")
+            original_publish(rk, body, mandatory=mandatory)
+
+        monkeypatch.setattr(publisher, "_do_basic_publish", fail_first_then_publish)
+        publisher.publish_event(routing_key, payload)
+
+        assert len(attempts) == 2
+        assert attempts[0] == attempts[1]
+        assert attempts[0][0] == routing_key
+        assert attempts[0][2] is True
+        assert json.loads(attempts[0][1]) == payload
+
+        publisher._ensure_connected()
+        channel = publisher._channel
+        assert channel is not None
+        method, _props, body = channel.basic_get(queue, auto_ack=True)
+        assert method is not None
+        assert body is not None
+        assert json.loads(body) == payload
+        other_method, _other_props, _other_body = channel.basic_get(
+            other_queue, auto_ack=True,
+        )
+        assert other_method is None
+    finally:
+        publisher.close()
+        _drain_queue(mq_url, queue)
+        _drain_queue(mq_url, other_queue)
+
+
 def test_call_rpc_timeout(mq_url):
     queue = f"trex.test.rpc.timeout.{uuid.uuid4().hex[:8]}"
     client = RabbitMQTransport(mq_url, timeout=5.0)