Update bundle backtests

src/Managing.Api/Controllers/BacktestController.cs

@@ -462,11 +462,6 @@ public class BacktestController : BaseController
         {
             var user = await GetUser();
 
-            // Validate universal configuration
-            if (string.IsNullOrEmpty(request.UniversalConfig.AccountName))
-            {
-                return BadRequest("Account name is required in universal configuration");
-            }
 
             if (string.IsNullOrEmpty(request.UniversalConfig.ScenarioName) && request.UniversalConfig.Scenario == null)
             {
@@ -510,8 +505,9 @@ public class BacktestController : BaseController
     /// Generates individual backtest requests from variant configuration
     /// </summary>
     /// <param name="request">The bundle backtest request</param>
+    /// <param name="accountName">The account name to use for all backtests</param>
     /// <returns>List of individual backtest requests</returns>
-    private List<RunBacktestRequest> GenerateBacktestRequests(RunBundleBacktestRequest request)
+    private List<RunBacktestRequest> GenerateBacktestRequests(RunBundleBacktestRequest request, string accountName)
     {
         var backtestRequests = new List<RunBacktestRequest>();
 
@@ -523,7 +519,7 @@ public class BacktestController : BaseController
                 {
                     var config = new TradingBotConfigRequest
                     {
-                        AccountName = request.UniversalConfig.AccountName,
+                        AccountName = accountName,
                         Ticker = ticker,
                         Timeframe = request.UniversalConfig.Timeframe,
                         IsForWatchingOnly = request.UniversalConfig.IsForWatchingOnly,