Senior SaaS Architect Needed for Emergency Production Stabilization (Supabase/Vercel)

I have a live SaaS platform (Supabase/Vercel) experiencing critical 403/401 authentication errors that are locking out my users. I am not looking for a full-scale rebuild. I need a senior engineer to: Conduct an immediate emergency diagnostic audit to identify the cause of the authentication failures in our Vercel logs. Propose a specific, low-risk patch to stabilize access for my users. Provide a clear path for HIPAA-compliant migration to Neon. Requirements: You must be able to hop on a 15-minute video call immediately to discuss your approach. Please do not apply if you are looking for long-term 'discovery' or feature building. This is a stabilization-first mission.