I want a clean, cross-platform grocery store app built with Flutter that runs smoothly on both Android and iOS. The scope is intentionally compact—about seven or eight screens—but each must feel polished and production-ready. Here is the core flow I need: • Splash → Mobile-number OTP login (no email, social, or multi-language layers—just a straightforward phone-based sign-in) • Product catalogue with search and category filters • Cart review and quantity update • Checkout that accepts online-banking payments and offers Cash-on-Delivery as an alternate option • Delivery or in-store pickup selection with status tracking • Order confirmation & basic profile / past orders screen I will provide branding assets and a simple REST endpoint structure; you wire up the UI, state management, and the OTP / payment integrations. Smooth animations, consistent theming, and platform-appropriate navigation are important to me. Deliverables: • Flutter project source code ready for both stores • Test builds (APK + TestFlight, or similar) • Brief hand-off guide explaining environment setup, package versions, and how to point to my APIs If this sounds straightforward to you and you have recent Flutter apps in production, let’s get started.