Refactor KMP project structure for AGP 9.0 compatibility

Split composeApp into shared (KMP library) and androidApp (Android application)
modules to resolve KMP + AGP 9.0 incompatibility. Remove deprecated gradle
properties and add performance optimization settings.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

androidApp/build.gradle.kts

@@ -0,0 +1,28 @@
+plugins {
+    alias(libs.plugins.androidApplication)
+    alias(libs.plugins.composeMultiplatform)
+    alias(libs.plugins.composeCompiler)
+}
+
+android {
+    namespace = "plus.rua.project"
+    compileSdk = libs.versions.android.compileSdk.get().toInt()
+
+    defaultConfig {
+        applicationId = "plus.rua.project"
+        minSdk = libs.versions.android.minSdk.get().toInt()
+        targetSdk = libs.versions.android.targetSdk.get().toInt()
+        versionCode = 1
+        versionName = "1.0"
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+}
+
+dependencies {
+    implementation(project(":shared"))
+    implementation(libs.androidx.activity.compose)
+    implementation(libs.compose.uiToolingPreview)
+}

gradle.properties

@@ -10,13 +10,7 @@ org.gradle.caching=true
 #Android
 android.nonTransitiveRClass=true
 android.useAndroidX=true
-android.defaults.buildfeatures.resvalues=true
-android.sdk.defaultTargetSdkToCompileSdkIfUnset=false
-android.enableAppCompileTimeRClass=false
-android.usesSdkInManifest.disallowed=false
 android.uniquePackageNames=false
 android.dependency.useConstraints=true
 android.r8.strictFullModeForKeepRules=false
-android.r8.optimizedResourceShrinking=false
-android.builtInKotlin=false
-android.newDsl=false
+android.generateSyncIssueWhenLibraryConstraintsAreEnabled=false

settings.gradle.kts

@@ -28,4 +28,5 @@ dependencyResolutionManagement {
     }
 }
 
-include(":composeApp")
+include(":shared")
+include(":androidApp")

shared/build.gradle.kts

@@ -1,20 +1,25 @@
-import org.jetbrains.compose.desktop.application.dsl.TargetFormat
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
-    alias(libs.plugins.androidApplication)
+    id("com.android.kotlin.multiplatform.library")
     alias(libs.plugins.composeMultiplatform)
     alias(libs.plugins.composeCompiler)
 }
 
 kotlin {
-    androidTarget {
+    android {
+        namespace = "plus.rua.project.shared"
+        compileSdk = libs.versions.android.compileSdk.get().toInt()
+        minSdk = libs.versions.android.minSdk.get().toInt()
+
+        withHostTest {}
+
         compilerOptions {
             jvmTarget.set(JvmTarget.JVM_17)
         }
     }
-    
+
     listOf(
         iosArm64(),
         iosSimulatorArm64()
@@ -24,7 +29,7 @@ kotlin {
             isStatic = true
         }
     }
-    
+
     sourceSets {
         androidMain.dependencies {
             implementation(libs.compose.uiToolingPreview)
@@ -45,35 +50,3 @@ kotlin {
         }
     }
 }
-
-android {
-    namespace = "plus.rua.project"
-    compileSdk = libs.versions.android.compileSdk.get().toInt()
-
-    defaultConfig {
-        applicationId = "plus.rua.project"
-        minSdk = libs.versions.android.minSdk.get().toInt()
-        targetSdk = libs.versions.android.targetSdk.get().toInt()
-        versionCode = 1
-        versionName = "1.0"
-    }
-    packaging {
-        resources {
-            excludes += "/META-INF/{AL2.0,LGPL2.1}"
-        }
-    }
-    buildTypes {
-        getByName("release") {
-            isMinifyEnabled = false
-        }
-    }
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
-    }
-}
-
-dependencies {
-    debugImplementation(libs.compose.uiTooling)
-}
-

shared/src/commonMain/kotlin/plus/rua/project/App.kt

@@ -16,8 +16,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
 import org.jetbrains.compose.resources.painterResource
 
-import yaya.composeapp.generated.resources.Res
-import yaya.composeapp.generated.resources.compose_multiplatform
+import yaya.shared.generated.resources.Res
+import yaya.shared.generated.resources.compose_multiplatform
 
 @Composable
 @Preview