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/Views/MainView.axaml

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+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:MeWeb.App.ViewModels"
+             xmlns:s="using:MeWeb.App.Services"
+             x:Class="MeWeb.App.Views.MainView"
+             x:DataType="vm:MainViewModel"
+             FlowDirection="{Binding Flow}"
+             Background="{StaticResource GroundBrush}">
+  <DockPanel Margin="24,18">
+    <Grid DockPanel.Dock="Top" ColumnDefinitions="*,Auto">
+      <TextBlock Grid.Column="0" Classes="title" Text="me-web?" VerticalAlignment="Center" />
+      <ComboBox Grid.Column="1" MinWidth="180" VerticalAlignment="Center"
+                AutomationProperties.AutomationId="main-language"
+                AutomationProperties.Name="{s:Tr Language}"
+                ItemsSource="{Binding Languages}"
+                SelectedItem="{Binding SelectedLanguage}">
+        <ComboBox.ItemTemplate>
+          <DataTemplate x:DataType="s:Language">
+            <TextBlock Text="{Binding Name}" />
+          </DataTemplate>
+        </ComboBox.ItemTemplate>
+      </ComboBox>
+    </Grid>
+
+    <StackPanel DockPanel.Dock="Bottom" Spacing="6" HorizontalAlignment="Center">
+      <StackPanel Orientation="Horizontal" Spacing="8" HorizontalAlignment="Center" IsVisible="{Binding ShowDraftNotice}">
+        <TextBlock Classes="small" Text="{s:Tr DraftNotice}" VerticalAlignment="Center" />
+        <Button Classes="link" Content="{s:Tr SuggestCorrection}"
+                AutomationProperties.AutomationId="main-suggest-correction"
+                Command="{Binding OpenCorrectionsCommand}" />
+      </StackPanel>
+      <TextBlock Classes="small" Text="{Binding VersionFormatted}" HorizontalAlignment="Center" />
+    </StackPanel>
+
+    <StackPanel Spacing="22" VerticalAlignment="Center" HorizontalAlignment="Center" MaxWidth="560">
+      <Grid Width="140" Height="140" HorizontalAlignment="Center">
+        <Ellipse Classes="pulse" Width="140" Height="140" Fill="{StaticResource BrandRedBrush}" IsVisible="{Binding ShowChecking}" />
+        <Ellipse Width="112" Height="112" Fill="{StaticResource SurfaceRaisedBrush}" Stroke="{StaticResource LineBrush}" StrokeThickness="2" />
+        <Ellipse Width="64" Height="64" Fill="{StaticResource GoodBrush}" IsVisible="{Binding ShowOnline}" />
+        <Ellipse Width="64" Height="64" Fill="{StaticResource BadBrush}" IsVisible="{Binding ShowOffline}" />
+        <Ellipse Width="64" Height="64" Fill="{StaticResource TextSoftBrush}" Opacity="0.4" IsVisible="{Binding ShowChecking}" />
+      </Grid>
+      <TextBlock Classes="status" Text="{Binding StatusFormatted}" />
+      <TextBlock Classes="lead" Text="{s:Tr AppTagline}" />
+      <Button Classes="primary" Content="{s:Tr Check}"
+              AutomationProperties.AutomationId="main-check"
+              Command="{Binding RefreshCommand}" />
+    </StackPanel>
+  </DockPanel>
+</UserControl>

src/MeWeb.App/Views/MainView.axaml.cs

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+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+using MeWeb.App.ViewModels;
+
+namespace MeWeb.App.Views;
+
+public partial class MainView : UserControl
+{
+  public MainView() => InitializeComponent();
+
+  protected override void OnLoaded(RoutedEventArgs e)
+  {
+    base.OnLoaded(e);
+    if (DataContext is MainViewModel model)
+    {
+      model.Launcher = TopLevel.GetTopLevel(this)?.Launcher;
+      model.RefreshCommand.Execute(null);
+    }
+  }
+}

src/MeWeb.App/Views/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        x:Class="MeWeb.App.Views.MainWindow"
+        Title="me-web?"
+        Icon="/Assets/meweb.png"
+        Width="1100" Height="760" MinWidth="380" MinHeight="560"
+        Background="{StaticResource GroundBrush}"
+        WindowStartupLocation="CenterScreen" />

src/MeWeb.App/Views/MainWindow.axaml.cs

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+using Avalonia.Controls;
+
+namespace MeWeb.App.Views;
+
+public partial class MainWindow : Window
+{
+  public MainWindow() => InitializeComponent();
+}