refactor: migrate to agp9

shared/build.gradle.kts

@@ -1,10 +1,9 @@
-import org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
     alias(libs.plugins.kotlinSerialization)
-    alias(libs.plugins.androidLibrary)
+    alias(libs.plugins.androidMultiplatformLibrary)
     alias(libs.plugins.ksp)
     alias(libs.plugins.room)
     alias(libs.plugins.wire)
@@ -15,8 +14,10 @@ room {
 }
 
 kotlin {
-    androidTarget {
-        @OptIn(ExperimentalKotlinGradlePluginApi::class)
+    android {
+        namespace = "moe.lava.banksia.shared"
+        compileSdk = libs.versions.android.compileSdk.get().toInt()
+
         compilerOptions {
             jvmTarget.set(JvmTarget.JVM_11)
         }
@@ -64,21 +65,9 @@ dependencies {
     add("kspJvm", libs.room.compiler)
 }
 
-android {
-    namespace = "moe.lava.banksia.shared"
-    compileSdk = libs.versions.android.compileSdk.get().toInt()
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
-    }
-    defaultConfig {
-        minSdk = libs.versions.android.minSdk.get().toInt()
-    }
-}
-
 wire {
     sourcePath {
         srcDir("src/commonMain/proto")
     }
     kotlin {}
-}
+}