fix(): revert filtered entities solution as it sucks ass

src/template_project/adapters/unit_of_work.py

@@ -13,8 +13,7 @@ class DefaultUnitOfWork(UnitOfWork):
 
     @override
     async def add(self, *entities: Any) -> None:
-        filtered_entities = [copy.copy(entity) if isinstance(entity, Entity) else entity for entity in entities]
-        self._session.add_all(filtered_entities)
+        self._session.add_all(entities)
         await self._session.flush()
 
     @override