+", XamlRoot = Root.XamlRoot };                                                                                                      
      107 +            await d.ShowAsync();                                                                                                    
      108 +        }                                                                                                                           
      109 +    }                                                                                                                               
      110 +                                                                                                                                    
      111 +    private async void About_Click(object sender, RoutedEventArgs e)                                                                
      112 +    {                                                                                                                               
      113 +        if (Root.XamlRoot is null) return;                                                                                          
      114 +        var d = new ContentDialog                                                                                                   
      115 +        {                                                                                                                           
      116 +            Title = "reactor-sync hub",                                                                                             
      117 +            Content = $"reactor-sync hub {ViewModel.AppVersion}\nNative Windows (WinUI 3) client for reactor-sync.\nHost: {ViewModel
          +.HostLine}\n\nRuns persistently: closing or a crash relaunches it; use File > Quit to fully stop.",                                 
      118 +            CloseButtonText = "Close",                                                                                              
      119 +            XamlRoot = Root.XamlRoot,                                                                                               
      120 +        };                                                                                                                          
      121 +        await d.ShowAsync();                                                                                                        
      122 +    }                                                                                                                               
      123 +                                                                                                                                    
      124      private async void Item_DoubleTapped(object sender, DoubleTappedRoutedEventArgs e)
      125      {
      126          if ((e.OriginalSource as FrameworkElement)?.DataContext is not ExplorerItem it) return;

● Now wire the watchdog into the installer (migrate.ps1) — registration + clean uninstall:

✢ Channelling… (5m 21s · ↓ 23.7k tokens)
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