fix strategy state persistence corrections

trex_core/domain/slot/service.py

@@ -44,15 +44,12 @@ class SlotService:
         self,
         repository: SlotRepository,
         instance_key: str = "default",
-        *,
-        strategy_state_store: Any = None,
     ) -> None:
         self._repo = repository
         # dcy-020/REQ-057: advisory lock is scoped per instance so a shared DB
         # does not serialize transitions across instances (NFR-1).
         self._instance_key = instance_key
         self._lock_id = slot_advisory_lock_id(instance_key)
-        self._strategy_state_store = strategy_state_store
 
     @property
     def instance_key(self) -> str: