I have an Android project open in Android Studio and want to wire it up to Google Cloud-based resources. The immediate priorities are: • Integrate the app with App Engine and Cloud Storage through their official APIs so the mobile client can call my backend endpoints and upload / download files smoothly inside Android Studio • Create and configure a Google Cloud billing account from scratch, link it to the new project, set sensible spending limits and alerts, and verify that App Engine and Cloud Storage are both covered I already have the Google Cloud project created but have not linked any payment profile yet, and the Android code has placeholders where the API calls should go. Once you finish, I expect to be able to: 1. Build and run the app in Android Studio with the App Engine endpoints and Cloud Storage bucket fully authenticated and working from my emulator and a physical device. 2. See a properly activated billing account in the Cloud Console with cost-control notifications in place. Please keep your changes documented so I can reproduce them on a fresh machine later.