fix: preserve SOR execution venue separately

trex_core/adapters/broker/kis.py

@@ -573,6 +573,27 @@ class KISBroker:
         delta = (ordered_at - submitted_at).total_seconds()
         return -5.0 <= delta <= 120.0
 
+    @staticmethod
+    def _execution_venue_from_row(row: dict) -> str | None:
+        """Parse broker-authoritative KRX/NXT without time inference."""
+        notice_code = str(row.get("ord_exg_gb") or row.get("ORD_EXG_GB") or "").strip()
+        notice_map = {"1": "KRX", "2": "NXT", "3": "KRX", "4": "NXT"}
+        if notice_code in notice_map:
+            return notice_map[notice_code]
+        for key in (
+            "excg_id_dvsn_cd",
+            "excg_id_dvsn_Cd",
+            "EXCG_ID_DVSN_CD",
+            "execution_venue",
+        ):
+            value = str(row.get(key) or "").strip().upper()
+            if value in {"KRX", "SOR-KRX"}:
+                return "KRX"
+            if value in {"NXT", "SOR-NXT"}:
+                return "NXT"
+        # SOR is routing provenance, not an execution exchange.
+        return None
+
     @staticmethod
     def _fill_status_from_row(
         row: dict,
@@ -581,6 +602,7 @@ class KISBroker:
         today: str,
         fallback_odno: str,
     ) -> FillStatus:
+        execution_venue = KISBroker._execution_venue_from_row(row)
         ord_qty = _safe_int(row.get("ord_qty")) or 0
         ccld_qty = _safe_int(row.get("tot_ccld_qty")) or 0
         rejected_qty = _safe_int(row.get("rjct_qty")) or 0
@@ -623,6 +645,7 @@ class KISBroker:
                 execution_id=execution_id,
                 fee=fee,
                 tax=tax,
+                execution_venue=execution_venue,
                 raw=row,
             )
         # 0 < ccld_qty < ord_qty
@@ -646,6 +669,7 @@ class KISBroker:
                 execution_id=execution_id,
                 fee=fee,
                 tax=tax,
+                execution_venue=execution_venue,
                 cancelled=True,
                 raw=row,
             )
@@ -653,6 +677,7 @@ class KISBroker:
             state="partially_filled",
             filled_qty=ccld_qty,
             avg_price=float(avg) if avg else None,
+            execution_venue=execution_venue,
             raw=row,
         )