I’m ready to turn an idea for an AI-driven mobile application into a working product built with Flutter, compiled once and released on both Android and iOS. While I already know the app will lean on AI for its core experience, I’m still open to recommendations on the exact model or service we should integrate, so your guidance here will be valuable. Please share your portfolio / already build apps in your bids. Key features I need implemented: • User authentication (email, social, or another secure method you suggest) • Push notifications for timely updates and reminders • In-app purchases handled through Google Play and the App Store I’ll supply UI wireframes and any required accounts or API keys; you provide clean, well-documented Dart code, clear build instructions, and a short hand-off call or video explaining deployment. If you have shipped AI-powered Flutter apps before, let me see an example—otherwise outline how you’d approach the model selection, training (if needed), and on-device vs. cloud inference trade-offs. I’m looking to move quickly, so please include an estimated timeline broken into milestones and let me know what you need from me to start.