I’m looking to turn my astrology concept into a working Android app. The very first milestone is a solid, well-structured codebase with user authentication built in. Scope • Build a native Android application (Kotlin or Java). • Implement mandatory account creation and sign-in—email/password or a secure provider such as Firebase Auth. • Set up a clean screen flow that I can extend for horoscope, natal chart, and compatibility modules later. Placeholders or simple demo data are fine for now; the emphasis is on architecture. What I need from you 1. A functional prototype APK and complete source code. 2. Modular design that lets me plug in additional astrology features without rewrites. 3. Clear, inline code comments and brief setup documentation. 4. A short hand-off call or video walk-through so I’m comfortable maintaining the project. If you have experience with astrology apps, Firebase, or clean MVVM architecture, that’s a plus—please mention it in your bid.