minor

src/aeros_simulation/schema.py

@@ -104,8 +104,8 @@ class SimulationData(BaseModel):
     reliability: Optional[dict]
     created_at: datetime
     started_at: datetime
-    duration: int
+    duration: Optional[int]= 0
-    offset:int
+    offset:Optional[int] = 0
 
 class SimulationRankingParameters(EquipmentWithCustomParameters):
     availability:float