My React Native app is already in production, but the signup screen is giving users a hard time. They often see vague error messages and some of the client-side validation simply never fires, so incomplete data gets sent to the API and the request fails. I need the whole signup path—from first field entry to stored token—to feel seamless and behave predictably on both Android and iOS. Here is what I expect at the end of the job: • Root-cause analysis of the current error messages and silent failures • Robust form validation with clear, user-friendly feedback (email format, password strength, required fields, etc.) • Solid error handling that shows meaningful messages from the backend when something still goes wrong • A brief summary of each change in the repo’s README so future contributors understand the fixes • Build and test the updated flow on a recent iOS and Android simulator or device The project is built with React Native, Redux Toolkit, and Axios for API calls. If you have prior experience tightening up authentication in similar stacks, point me to past work so I can review it quickly.