feat: initialize existing development playout PCs

src/MBN_STOCK_WEBVIEW.LegacyParityApp/App.xaml.cs

@@ -10,6 +10,10 @@ public partial class App : Application
     private Window? _window;
     private AppInstance? _mainInstance;
 
+    internal static bool IsDevelopmentLiveLaunch { get; private set; }
+
+    internal static bool IsDevelopmentLiveLaunchRequested { get; private set; }
+
     public App()
     {
         InitializeComponent();
@@ -55,9 +59,14 @@ public partial class App : Application
             : DevelopmentLiveLaunchBootstrap.ResolveLaunchArguments(
                 args.Arguments,
                 Environment.GetCommandLineArgs());
+        IsDevelopmentLiveLaunchRequested = string.Equals(
+            launchArguments,
+            DevelopmentLiveLaunchBootstrap.ExactLaunchArgument,
+            StringComparison.Ordinal);
         var developmentLive = DevelopmentLiveLaunchBootstrap.TryApply(
             launchArguments,
             isDebugBuild);
+        IsDevelopmentLiveLaunch = developmentLive.IsApplied;
         System.Diagnostics.Debug.WriteLine(
             $"Development Live bootstrap: {developmentLive.Code}");