Add BacktestCount

src/Managing.Api/Controllers/DataController.cs

@@ -610,6 +610,7 @@ public class DataController : ControllerBase
                 TotalVolume = agentSummary.TotalVolume,
                 TotalBalance = agentSummary.TotalBalance,
                 TotalFees = agentSummary.TotalFees,
+                BacktestCount = agentSummary.BacktestCount,
             };
 
             agentSummaryViewModels.Add(agentSummaryViewModel);