I have an idea that needs to become a real Android mobile application, and I’d like you to handle the entire development cycle—from shaping the feature list with me to handing over a signed release build ready for the Google Play Console. There is no existing code or design; you’ll be starting fresh and advising me on best practices along the way. Core needs • Modern Android build in Kotlin or Java inside Android Studio • Interface that follows current Material Design guidance • Secure connection to a lightweight back-end or API of your choice (Firebase, REST, or similar) • Thorough in-app testing plus an artefact ready for store submission (APK/AAB) • Full, documented source in a private Git repository Please share one live Android app you have shipped, outline your development approach, and give a realistic timeline for each major milestone so we can keep the project moving smoothly.