Initial LibGDX project scaffold for ArtLegend

Multi-module Gradle setup targeting Android (S-Pen) and Desktop (Wacom/LWJGL3).
Includes core game stub, Android launcher with immersive mode, and desktop launcher.
Asset directory shared across platforms. Gradle 8.6, Kotlin 1.9.23, LibGDX 1.12.1.

android/build.gradle.kts

@@ -0,0 +1,67 @@
+plugins {
+    kotlin("android")
+    id("com.android.application")
+}
+
+val gdxVersion: String by project
+val natives: Configuration by configurations.creating
+
+android {
+    namespace = "com.artlegend"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.artlegend"
+        minSdk = 26
+        targetSdk = 34
+        versionCode = 1
+        versionName = "0.1.0"
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    sourceSets {
+        getByName("main") {
+            assets.srcDirs(rootProject.file("assets"))
+            jniLibs.srcDirs("libs")
+        }
+    }
+}
+
+dependencies {
+    implementation(project(":core"))
+    implementation("com.badlogicgames.gdx:gdx-backend-android:$gdxVersion")
+    natives("com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a")
+    natives("com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-arm64-v8a")
+    natives("com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86")
+    natives("com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86_64")
+}
+
+tasks.register("copyAndroidNatives") {
+    doFirst {
+        natives.files.forEach { jar ->
+            val outputDir = file("libs")
+            outputDir.mkdirs()
+            copy {
+                from(zipTree(jar))
+                into(outputDir)
+                include("*.so")
+                eachFile { path = name }
+                includeEmptyDirs = false
+            }
+        }
+    }
+}
+
+tasks.whenTaskAdded {
+    if (name.contains("package") || name.contains("assemble") || name.contains("bundle")) {
+        dependsOn("copyAndroidNatives")
+    }
+}