feat: propagate intent venue through execution

trex_core/domain/slot/models.py

@@ -56,6 +56,9 @@ class Slot:
     # holding episode. Used by the strategy-state CAS to reject writes computed
     # against a prior occupancy of a reused slot (point-ABA guard, dcy-028 R-1).
     occupancy_seq: int = 0
+    # Order venue carried from the admitted intent through dispatch/cancel.
+    # It is reset to KRX when the permanent asset slot returns to INACTIVE.
+    venue: str = "KRX"
 
 
 # Canonical column contract for `Slot` (dcy-001 OQ-2 / FR-5).
@@ -84,6 +87,7 @@ EXPECTED_SLOT_FIELDS: frozenset[str] = frozenset({
     "timeout_sec",        # dcy-022 / REQ-068 (BAT-032)
     "slippage_pct",       # dcy-022 / REQ-068 (BAT-032)
     "occupancy_seq",      # dcy-028 / REQ-081 (BAT-042)
+    "venue",
 })
 
 

trex_core/domain/slot/service.py

@@ -85,6 +85,7 @@ class SlotService:
         # dcy-022 / REQ-068: execution policy (set on PENDING entry, cleared on exit).
         timeout_sec: Optional[int] = None,
         slippage_pct: Optional[float] = None,
+        venue: Optional[str] = None,
         extra: Optional[dict[str, Any]] = None,
     ) -> Slot:
         """Transition slot from one state to another atomically.
@@ -133,6 +134,7 @@ class SlotService:
                 take_profit_price=take_profit_price,
                 timeout_sec=timeout_sec,
                 slippage_pct=slippage_pct,
+                venue=venue,
             )
             self._repo.update_slot(updated)
 
@@ -173,6 +175,7 @@ class SlotService:
         take_profit_price: Optional[Decimal] = None,
         timeout_sec: Optional[int] = None,
         slippage_pct: Optional[float] = None,
+        venue: Optional[str] = None,
     ) -> Slot:
         """Compute the post-transition Slot row.
 
@@ -201,6 +204,7 @@ class SlotService:
                 take_profit_price=None,
                 timeout_sec=None,
                 slippage_pct=None,
+                venue="KRX",
                 updated_at=datetime.now(tz=timezone.utc),
             )
 
@@ -267,6 +271,7 @@ class SlotService:
             timeout_sec=new_timeout_sec,
             slippage_pct=new_slippage_pct,
             occupancy_seq=new_occupancy_seq,
+            venue=venue if venue is not None else slot.venue,
             updated_at=datetime.now(tz=timezone.utc),
         )