minor fix

src/dashboard_model/service.py

@@ -37,4 +37,4 @@ async def get_model_data(*, db_session: DbSession, simulation_id: Optional[UUID]
 
     EAF = main_calc_data.production / main_calc_data.ideal_production
 
-    return {"availability": availability, "EFOR": EFOR, "EAF": EAF}
+    return {"id": str(simulation.id), "availability": availability, "EFOR": EFOR, "EAF": EAF}