Improve a bit workers. bug : Bundle reset after all backtest finish

src/Managing.Application/Backtests/BacktestExecutor.cs

@@ -641,6 +641,30 @@ public class BacktestExecutor
             var failedJobs = jobs.Count(j => j.Status == JobStatus.Failed);
             var runningJobs = jobs.Count(j => j.Status == JobStatus.Running);
             var totalJobs = jobs.Count();
+            
+            // CRITICAL: If bundle is already in a final state (Completed/Failed with CompletedAt set),
+            // don't overwrite it unless we're detecting a legitimate change
+            if (bundleRequest.CompletedAt.HasValue && 
+                (bundleRequest.Status == BundleBacktestRequestStatus.Completed || 
+                 bundleRequest.Status == BundleBacktestRequestStatus.Failed))
+            {
+                // Bundle already finalized, only update if job counts indicate it should be re-opened
+                // (This shouldn't happen in normal flow, but guards against race conditions)
+                if (completedJobs + failedJobs == totalJobs)
+                {
+                    _logger.LogDebug(
+                        "Bundle {BundleRequestId} already completed/failed. Skipping status update.",
+                        bundleRequestId);
+                    return; // Don't modify a completed bundle
+                }
+                else
+                {
+                    _logger.LogWarning(
+                        "Bundle {BundleRequestId} was marked as completed/failed but has incomplete jobs ({Completed}+{Failed}/{Total}). Reopening.",
+                        bundleRequestId, completedJobs, failedJobs, totalJobs);
+                    // Allow the update to proceed to fix inconsistent state
+                }
+            }
 
             // Update bundle request progress
             bundleRequest.CompletedBacktests = completedJobs;
@@ -668,11 +692,14 @@ public class BacktestExecutor
                 bundleRequest.CompletedAt = DateTime.UtcNow;
                 bundleRequest.CurrentBacktest = null;
             }
-            else if (runningJobs > 0)
+            else if (runningJobs > 0 || completedJobs > 0 || failedJobs > 0)
             {
-                // Some jobs still running
+                // Some jobs are running, or some have completed/failed (meaning work has started)
+                // Once a bundle has started processing, it should stay "Running" until all jobs are done
                 bundleRequest.Status = BundleBacktestRequestStatus.Running;
             }
+            // If all jobs are still pending (completedJobs = 0, failedJobs = 0, runningJobs = 0),
+            // keep the current status (likely Pending)
 
             // Update results list with the new backtest ID
             var resultsList = bundleRequest.Results?.ToList() ?? new List<string>();