Finalize Supabase React Deployment

My Readdy-AI front-end has just been migrated from a Vite scaffold to plain React.js with Cursor, and it is already wired to Supabase. Before I push it live I need a fresh set of expert eyes to make sure everything works smoothly.

Here is what I need from you:

• Verify every call and redirect that touches Supabase—auth, storage and database endpoints—and correct any broken or outdated links or env-vars.
• Fix the UI bug where the product filters fail to display; the logic is there, the component simply never renders.
• Drop a validated Mapbox API token into the build (no Google Maps for now) and make sure the map renders both in dev and production.
• Run a light code polish pass: remove unused imports, tighten any obvious anti-patterns left by the migration, and add comments where the Cursor AI output is cryptic.
• Apply quick-win performance tweaks so first paint and interaction feel snappy.
• Package, build, and deploy the project to production (I am flexible on hosting—Netlify, Vercel or another reliable choice you suggest).

You will have GitHub access to the repo, current Supabase credentials, and the Mapbox token. Once the live link is up and all checks pass I’ll consider the job complete.