Vercel/Supabase SaaS App — Need a Dev to Audit, Debug & Dial In Full Build (Cursor-built)

Paste this: SaaS app built on Vercel + Supabase, built primarily using Cursor. It's semi-functional — most of it works, but I need an experienced dev to go through the full build, find what's broken or fragile, and get it fully dialed in and production-ready. I know login/auth and billing (Stripe) have issues. Beyond that, I want a real audit — not just patching what I already know about, but catching things I don't know are broken or built in a way that'll cause problems later. I'm being upfront: I'm not a developer. I built this with AI tools (Cursor) and know it has gaps. I need someone who can independently review, diagnose, and fix — not someone who needs heavy hand-holding on what's wrong. What I'll provide: GitHub repo access, Vercel/Supabase/Stripe dashboard access, a test account. What I need back: a working login flow, working billing flow (checkout through to paid access), a full list of anything else you found and fixed, and a short writeup of what was wrong so I understand it. Budget is fixed price, on the lower end — I'm looking for someone who can scope this efficiently, not a large rebuild. If your quote comes in high, tell me why so I can decide if it's worth it. Questions before you bid are welcome — I'd rather over-communicate now than have surprises mid-project.