added build aab .bat

.gitignore

@@ -51,6 +51,7 @@ Makefile
 android/.gradle/
 android/.idea/
 android/local.properties
+android/key.properties
 android/*.iml
 android/**/build/
 android/**/.cxx/

android/app/build.gradle.kts

@@ -1,8 +1,23 @@
+import java.util.Properties
+
 plugins {
   id("com.android.application")
   id("org.jetbrains.kotlin.android")
 }
 
+val keystorePropertiesFile = rootProject.file("key.properties")
+val keystoreProperties = Properties()
+val hasKeystoreProperties = keystorePropertiesFile.exists()
+
+if (hasKeystoreProperties) {
+  keystorePropertiesFile.inputStream().use { keystoreProperties.load(it) }
+}
+
+val hasReleaseKeystore = hasKeystoreProperties &&
+  listOf("storeFile", "storePassword", "keyAlias", "keyPassword").all {
+    !keystoreProperties.getProperty(it).isNullOrBlank()
+  }
+
 android {
   namespace = "com.izzy2lost.super3"
   compileSdk = 36
@@ -28,6 +43,17 @@ android {
     }
   }
 
+  signingConfigs {
+    if (hasReleaseKeystore) {
+      create("release") {
+        storeFile = file(keystoreProperties.getProperty("storeFile"))
+        storePassword = keystoreProperties.getProperty("storePassword")
+        keyAlias = keystoreProperties.getProperty("keyAlias")
+        keyPassword = keystoreProperties.getProperty("keyPassword")
+      }
+    }
+  }
+
   buildTypes {
     release {
       isMinifyEnabled = false
@@ -35,6 +61,9 @@ android {
         getDefaultProguardFile("proguard-android-optimize.txt"),
         "proguard-rules.pro"
       )
+      if (hasReleaseKeystore) {
+        signingConfig = signingConfigs.getByName("release")
+      }
     }
   }
 

build-aab.bat

@@ -0,0 +1,59 @@
+@echo off
+setlocal
+
+set "ROOT=%~dp0"
+set "ANDROID_DIR=%ROOT%android"
+set "KEY_PROPS=%ANDROID_DIR%\key.properties"
+
+if not exist "%KEY_PROPS%" (
+  echo Creating "%KEY_PROPS%" with placeholders...
+  >"%KEY_PROPS%" (
+    echo storeFile=C:/path/to/your-release-key.jks
+    echo storePassword=REPLACE_ME
+    echo keyAlias=REPLACE_ME
+    echo keyPassword=REPLACE_ME
+  )
+  echo.
+  echo Edit %KEY_PROPS% with your real values, then rerun this script.
+  echo.
+  pause
+  exit /b 1
+)
+
+findstr /C:"REPLACE_ME" "%KEY_PROPS%" >nul
+if %errorlevel%==0 (
+  echo.
+  echo Please replace the placeholders in %KEY_PROPS% before building.
+  echo.
+  pause
+  exit /b 1
+)
+
+findstr /C:"C:/path/to/your-release-key.jks" "%KEY_PROPS%" >nul
+if %errorlevel%==0 (
+  echo.
+  echo Please replace the storeFile placeholder in %KEY_PROPS% before building.
+  echo.
+  pause
+  exit /b 1
+)
+
+pushd "%ANDROID_DIR%" || exit /b 1
+call gradlew.bat bundleRelease
+set "EXITCODE=%ERRORLEVEL%"
+popd
+
+if not "%EXITCODE%"=="0" (
+  echo.
+  echo Build failed with exit code %EXITCODE%.
+  echo.
+  pause
+  exit /b %EXITCODE%
+)
+
+echo.
+echo Build complete.
+echo Release AAB:
+echo   %ANDROID_DIR%\app\build\outputs\bundle\release\app-release.aab
+echo.
+pause