Add Android app: phone UI for hosts, SSH terminal with extra key row, keys, snippets, LAN sync and app lock (password + fingerprint), reusing the desktop Node modules via capacitor-nodejs; APKs per ABI in releases for Obtainium

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

mobile/android/app/src/main/res/values/ic_launcher_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#111728</color>
+</resources>

mobile/android/app/src/main/res/values/strings.xml

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+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <string name="app_name">MrTerm</string>
+    <string name="title_activity_main">MrTerm</string>
+    <string name="package_name">de.mrterm.app</string>
+    <string name="custom_url_scheme">de.mrterm.app</string>
+</resources>

mobile/android/app/src/main/res/values/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar" parent="Theme.AppCompat.DayNight.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+        <item name="android:background">@null</item>
+    </style>
+
+
+    <style name="AppTheme.NoActionBarLaunch" parent="Theme.SplashScreen">
+        <item name="android:background">@drawable/splash</item>
+    </style>
+</resources>