fix: preserve sell event routing owner

trex_core/application/intents.py

@@ -469,6 +469,18 @@ class IntentService:
             return IntentDecision(
                 intent.intent_id, "rejected", None, f"slot_not_holding:{slot.status.value}"
             )
+        # req-0011 / ac-0038: decide the SELL event owner at admission and
+        # persist it in the existing canonical slot field.  An explicit SELL
+        # owner wins, then a preserved owner from a prior zero-fill cancel,
+        # then the legacy holding owner used by autonomous safety sells.
+        def non_empty(value: Optional[str]) -> Optional[str]:
+            return value if isinstance(value, str) and value.strip() else None
+
+        sell_event_owner = (
+            non_empty(intent.sell_strategy_id)
+            or non_empty(slot.sell_strategy_id)
+            or non_empty(slot.strategy_id)
+        )
         # dcy-022 / REQ-068: resolve effective timeout.
         effective_timeout = (
             intent.timeout_sec
@@ -482,7 +494,7 @@ class IntentService:
                 SlotState.PENDING_SELL,
                 reason=intent.reason,
                 actor="intent_api",
-                sell_strategy_id=intent.sell_strategy_id,
+                sell_strategy_id=sell_event_owner,
                 # dcy-012 / REQ-007: optional sell limit (None => market sell).
                 limit_price=intent.limit_price,
                 # dcy-021 / REQ-062: partial-sell order qty (None => sell all);