Start managed macOS AppKit client

clients/apple/dotnet/VoiceCat.Mac/AppDelegate.cs

@@ -0,0 +1,23 @@
+using AppKit;
+using Foundation;
+
+namespace VoiceCat.Mac;
+
+internal sealed class AppDelegate : NSApplicationDelegate
+{
+    private ConnectWindowController? connect;
+    public override void DidFinishLaunching(NSNotification notification)
+    {
+        NSApplication.SharedApplication.ActivationPolicy = NSApplicationActivationPolicy.Regular;
+        BuildMenu();
+        connect = new(); connect.ShowWindow(this);
+        NSApplication.SharedApplication.ActivateIgnoringOtherApps(true);
+    }
+    public override bool ApplicationShouldTerminateAfterLastWindowClosed(NSApplication sender) => true;
+    private static void BuildMenu()
+    {
+        var menu = new NSMenu(); var root = new NSMenuItem(); menu.AddItem(root);
+        var application = new NSMenu(); application.AddItem(new NSMenuItem("Quit VoiceCat", "q", (_, _) => NSApplication.SharedApplication.Terminate(null)));
+        root.Submenu = application; NSApplication.SharedApplication.MainMenu = menu;
+    }
+}