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

Directory.Build.props

@@ -0,0 +1,17 @@
+<Project>
+  <PropertyGroup>
+    <Version>0.1.0</Version>
+    <Product>me-web?</Product>
+    <Company>Arasaka di Hvozdikov Yevheniy</Company>
+    <Copyright>© 2026 Arasaka di Hvozdikov Yevheniy</Copyright>
+    <RepositoryUrl>https://git.thepra.dev/Arasaka/MeWeb</RepositoryUrl>
+    <PackageLicenseExpression>AGPL-3.0-only</PackageLicenseExpression>
+    <Nullable>disable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <LangVersion>latest</LangVersion>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <GenerateDocumentationFile>false</GenerateDocumentationFile>
+    <InvariantGlobalization>false</InvariantGlobalization>
+    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+  </PropertyGroup>
+</Project>