Gplay Gradle Build

This handles the Gradle build pipeline for Android apps heading to Google Play, covering both AAB and APK builds with proper signing configuration. You'll use it when you need to set up release builds, configure ProGuard/R8 minification, or automate version bumping before uploads. The signing setup uses environment variables instead of hardcoded credentials, which is the right call. It includes CI/CD examples for GitHub Actions and shows how to generate and upload ProGuard mapping files for crash symbolication. The troubleshooting section covers keystore verification and bundletool commands for inspecting AAB contents. Solid reference if you're wiring up Android release automation and don't want to dig through Gradle docs.