The goal is to ship a production-ready Android app built with Flutter that revolves around a clean, modern chat interface. I already collected a few reference designs, so you will not be starting from a blank canvas, but I still expect you to refine the UI so it feels native on Android and looks sharp on any screen size. What I need from you - Create clean chat UI and flow - Integrate backend / AI API -Basic user management: secure login, sign-up, with google/email -Ensure app is stable, scalable, and well-structured -Suggest improvements where needed Acceptance criteria 1. App installs and runs. 2. A new user can register, log in, send a message, and receive a chatbot reply without crashes. 4. Readme explains setup, environment variables, and build steps in plain English.