React + Supabase Web Application – Fix, Testing & Production Support

The application is already live on Vite/React with Supabase handling Auth, Database, Storage (with RLS), and the repo managed on GitHub. What I need now is a solid clean-up and hardening phase, not a redesign. Here is what I expect once you jump in: • Run a complete code review and resolve every bug you uncover in authentication, database interactions, the user interface, Supabase storage handling, role-based access rules, security/RLS policies, and the deployment pipeline itself. • Write and execute end-to-end tests so we can prove these fixes hold under real-world conditions. • Keep the existing design and feature set exactly as they are; only stability and reliability should change. You will work directly in the GitHub repo, using pull requests so I can follow each fix, and you’ll deploy to the current production environment when everything is green. Once finished, the app must run without errors from sign-up to data storage, with all role restrictions enforced and no deployment surprises. If that sounds straightforward to you and you have proven experience with React, Supabase (Auth, Database, Storage/RLS), GitHub workflows and deployment, let’s get started.