fix(ui): 修复“真实加载/菜单总耗时”长期显示 0ms 的问题

ContextMenuProfiler.UI/Core/BenchmarkService.cs

@@ -491,7 +491,7 @@ public List<BenchmarkResult> RunBenchmark(string targetPath)
             return RunSystemBenchmark(ScanMode.Targeted); // Simplified for now
         }
 
-        public long RunRealShellBenchmark(string? filePath = null) => 0;
+        public long RunRealShellBenchmark(string? filePath = null) => -1;
 
         private string DetermineCategory(IEnumerable<string> locations)
         {

ContextMenuProfiler.UI/ViewModels/DashboardViewModel.cs

@@ -326,6 +326,7 @@ private async Task ScanSystem()
             _lastScanMode = "System";
             StatusText = LocalizationService.Instance["Dashboard.Status.ScanningSystem"];
             IsBusy = true;
+            RealLoadTime = LocalizationService.Instance["Dashboard.RealLoad.Measuring"];
 
             App.Current.Dispatcher.Invoke(() =>
             {
@@ -375,6 +376,9 @@ void TryCompleteUiDrain()
                 TryCompleteUiDrain();
                 await uiDrainTcs.Task;
 
+                // Ensure summary values are refreshed even if no progress callback was emitted.
+                UpdateStats();
+
                 StatusText = string.Format(LocalizationService.Instance["Dashboard.Status.ScanComplete"], Results.Count);
                 NotificationService.Instance.ShowSuccess(LocalizationService.Instance["Dashboard.Notify.ScanComplete.Title"], string.Format(LocalizationService.Instance["Dashboard.Notify.ScanComplete.Message"], Results.Count));
             }
@@ -477,8 +481,6 @@ private async Task ScanFile(string filePath)
                     NotificationService.Instance.ShowSuccess(LocalizationService.Instance["Dashboard.Notify.ScanComplete.Title"], string.Format(LocalizationService.Instance["Dashboard.Notify.ScanCompleteForFile.Message"], results.Count, System.IO.Path.GetFileName(filePath)));
                 }
 
-                // Run Real-World Benchmark (Parallel but after discovery to avoid COM conflicts if any)
-                await RunRealBenchmark(filePath);
             }
             catch (Exception ex)
             {
@@ -493,26 +495,6 @@ private async Task ScanFile(string filePath)
             }
         }
 
-        private async Task RunRealBenchmark(string? filePath = null)
-        {
-            try
-            {
-                long elapsed = await Task.Run(() => _benchmarkService.RunRealShellBenchmark(filePath));
-                if (elapsed >= 0)
-                {
-                    RealLoadTime = $"{elapsed} ms";
-                }
-                else
-                {
-                    RealLoadTime = LocalizationService.Instance["Dashboard.RealLoad.Failed"];
-                }
-            }
-            catch
-            {
-                RealLoadTime = LocalizationService.Instance["Dashboard.RealLoad.Error"];
-            }
-        }
-
         private void ApplyLocalizedCategoryNames()
         {
             Categories = new ObservableCollection<CategoryItem>
@@ -721,6 +703,12 @@ private void UpdateStats()
             TotalLoadTime = totalTime;
             ActiveLoadTime = activeTime;
             DisabledLoadTime = disabledTime;
+
+            // "Real load" uses wall-clock IPC time when available; fall back to measured COM stage total.
+            long realLoadMs = Results
+                .Where(r => r.IsEnabled)
+                .Sum(r => r.WallClockTime > 0 ? r.WallClockTime : Math.Max(0, r.TotalTime));
+            RealLoadTime = realLoadMs > 0 ? $"{realLoadMs} ms" : "N/A";
         }
     }
 }