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.Android/Resources/drawable/splash_screen.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item>
+    <color android:color="@color/splash_background" />
+  </item>
+  <item android:drawable="@drawable/icon" android:width="120dp" android:height="120dp" android:gravity="center" />
+</layer-list>

src/MeWeb.Android/Resources/values-v31/styles.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <style name="MeWebTheme" />
+  <style name="MeWebTheme.NoActionBar" parent="@style/Theme.AppCompat.NoActionBar">
+    <item name="android:windowActionBar">false</item>
+    <item name="android:windowBackground">@null</item>
+    <item name="android:windowNoTitle">true</item>
+    <item name="android:windowSplashScreenBackground">@color/splash_background</item>
+    <item name="android:windowSplashScreenAnimatedIcon">@drawable/icon</item>
+    <item name="postSplashScreenTheme">@style/MeWebTheme.Main</item>
+  </style>
+  <style name="MeWebTheme.Main" parent="MeWebTheme.NoActionBar">
+    <item name="android:windowIsTranslucent">true</item>
+  </style>
+</resources>

src/MeWeb.Android/Resources/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="splash_background">#1B141C</color>
+</resources>

src/MeWeb.Android/Resources/values/styles.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <style name="MeWebTheme" />
+  <style name="MeWebTheme.NoActionBar" parent="@style/Theme.AppCompat.NoActionBar">
+    <item name="android:windowActionBar">false</item>
+    <item name="android:windowBackground">@drawable/splash_screen</item>
+    <item name="android:windowNoTitle">true</item>
+  </style>
+</resources>