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/capacitor.build.gradle

@@ -0,0 +1,19 @@
+// DO NOT EDIT THIS FILE! IT IS GENERATED EACH TIME "capacitor update" IS RUN
+
+android {
+  compileOptions {
+      sourceCompatibility JavaVersion.VERSION_21
+      targetCompatibility JavaVersion.VERSION_21
+  }
+}
+
+apply from: "../capacitor-cordova-android-plugins/cordova.variables.gradle"
+dependencies {
+    implementation project(':capacitor-nodejs')
+
+}
+
+
+if (hasProperty('postBuildExtras')) {
+  postBuildExtras()
+}