me-web? skeleton: Avalonia 12 app, server, packaging and CI

The first screen (online or not, a Check button, every language with a
draft notice), the desktop and Android heads, the server's /api/info and
/api/ip, a release tool that builds deb, rpm, a Windows exe, macOS zips,
a signed APK and the server, and the Gitea workflows that run it. Rules
adapted from passolo; AGPL-3.0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB

src/MeWeb.App/App.axaml.cs

@@ -0,0 +1,43 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+using MeWeb.App.Services;
+using MeWeb.App.ViewModels;
+using MeWeb.App.Views;
+
+using Microsoft.Extensions.DependencyInjection;
+
+namespace MeWeb.App;
+
+public partial class App : Application
+{
+  public static IServiceProvider Services { get; private set; }
+
+  public override void Initialize()
+  {
+    AvaloniaXamlLoader.Load(this);
+#if DEBUG
+    this.AttachDeveloperTools();
+#endif
+  }
+
+  public override void OnFrameworkInitializationCompleted()
+  {
+    Services = new ServiceCollection().AddMeWebApp().BuildServiceProvider();
+    var stored = AppSettings.Read();
+    Localizer.Instance.SetLanguage(Languages.Find(stored.Language) ?? Languages.ForCulture(System.Globalization.CultureInfo.CurrentUICulture));
+
+    if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+      desktop.MainWindow = new MainWindow { Content = CreateMainView() };
+    else if (ApplicationLifetime is IActivityApplicationLifetime activity)
+      activity.MainViewFactory = CreateMainView;
+    else if (ApplicationLifetime is ISingleViewApplicationLifetime single)
+      single.MainView = CreateMainView();
+
+    base.OnFrameworkInitializationCompleted();
+  }
+
+  static Control CreateMainView() => new MainView { DataContext = Services.GetRequiredService<MainViewModel>() };
+}