chore: add license and build configs

composeApp/build.gradle.kts

@@ -1,4 +1,5 @@
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import java.util.Properties
 
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
@@ -47,16 +48,31 @@ kotlin {
     }
 }
 
+val localProperties = Properties().apply {
+    val file = rootProject.file("local.properties")
+    if (file.exists()) {
+        load(file.inputStream())
+    }
+}
+
 android {
     namespace = "su.reya.coop"
     compileSdk = libs.versions.android.compileSdk.get().toInt()
 
+    signingConfigs {
+        create("release") {
+            storeFile = localProperties.getProperty("keystore.path")?.let { file(it) }
+            storePassword = localProperties.getProperty("keystore.password")
+            keyAlias = localProperties.getProperty("key.alias")
+            keyPassword = localProperties.getProperty("key.password")
+        }
+    }
     defaultConfig {
         applicationId = "su.reya.coop"
         minSdk = libs.versions.android.minSdk.get().toInt()
         targetSdk = libs.versions.android.targetSdk.get().toInt()
         versionCode = 1
-        versionName = "1.0"
+        versionName = "0.1.0"
     }
     packaging {
         resources {
@@ -65,7 +81,26 @@ android {
     }
     buildTypes {
         getByName("release") {
-            isMinifyEnabled = false
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt")
+            )
+            signingConfig = signingConfigs.getByName("release")
+        }
+        create("beta") {
+            initWith(getByName("release"))
+            applicationIdSuffix = ".beta"
+            versionNameSuffix = "-beta"
+            manifestPlaceholders["appName"] = "Coop Beta"
+            signingConfig = signingConfigs.getByName("release")
+        }
+        create("alpha") {
+            initWith(getByName("release"))
+            applicationIdSuffix = ".alpha"
+            versionNameSuffix = "-alpha"
+            manifestPlaceholders["appName"] = "Coop Alpha"
+            signingConfig = signingConfigs.getByName("release")
         }
     }
     compileOptions {