chore: add Android project files to version control

Adds build config, Gradle wrapper, resources, and gitignore.
Kotlin sources, manifests and app build.gradle were already tracked.
Excludes build output, .gradle cache, .idea, local.properties, and release APK.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

android/.gitignore

@@ -0,0 +1,12 @@
+# Build output
+.gradle/
+build/
+app/build/
+app/release/
+
+# Local config (contains SDK path and server URL — never commit)
+local.properties
+
+# IDE
+.idea/
+*.iml

android/app/src/main/res/drawable/ic_launcher.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#1a1a2e"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#e040fb"
+        android:pathData="M54,27v23.24c-1.33-0.78-2.87-1.24-4.5-1.24C44.81,49,41,52.81,41,57.5S44.81,66,49.5,66S58,62.19,58,57.5V36h9V27H54z" />
+</vector>

android/app/src/main/res/drawable/ic_notification.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="@android:color/white">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M12,3v10.55c-0.59-0.34-1.27-0.55-2-0.55c-2.21,0-4,1.79-4,4s1.79,4,4,4s4-1.79,4-4V7h4V3h-6z" />
+</vector>

android/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#000000">
+
+    <WebView
+        android:id="@+id/web_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</FrameLayout>

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">NovaSonic</string>
+</resources>

android/app/src/main/res/values/themes.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.NovaSonic" parent="Theme.AppCompat.NoActionBar">
+        <item name="android:windowBackground">@android:color/black</item>
+        <item name="android:statusBarColor">@android:color/black</item>
+        <item name="android:navigationBarColor">@android:color/black</item>
+    </style>
+</resources>

android/app/src/main/res/xml/automotive_app_desc.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<automotiveApp>
+    <uses name="media" />
+</automotiveApp>

android/app/src/main/res/xml/network_security_config.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Allow HTTP for self-hosted NovaSonic/Navidrome on local network -->
+<network-security-config>
+    <base-config cleartextTrafficPermitted="true">
+        <trust-anchors>
+            <certificates src="system" />
+        </trust-anchors>
+    </base-config>
+</network-security-config>

android/build.gradle.kts

@@ -0,0 +1,4 @@
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.kotlin.android) apply false
+}

android/gradle.properties

@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+android.useAndroidX=true
+kotlin.code.style=official
+android.nonTransitiveRClass=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

android/local.properties.example

@@ -0,0 +1,8 @@
+# Copy this file to local.properties and set your server URL.
+# local.properties is gitignored — never commit your URL or credentials.
+
+# Your NovaSonic / Navidrome server URL (no trailing slash)
+NOVASONIC_URL=http://192.168.1.100:4533
+
+# Android SDK path (set automatically by Android Studio)
+# sdk.dir=/home/user/Android/Sdk

android/settings.gradle.kts

@@ -0,0 +1,16 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+rootProject.name = "NovaSonic"
+include(":app")