Supabase API Replication Specialist

I need my current Supabase project cloned into a fresh instance, but only the API layer. The job is straightforward: recreate every custom end-point and ensure user authentication behaves exactly as it does now. No front-end work, data modeling, or UI polish—just a faithful copy of the working API services.

Key tasks
• Map and rebuild all existing custom REST/RPC endpoints in the new Supabase project.
• Re-implement the same authentication flow (sign-up, sign-in, session handling, role rules).
• Test the replicated endpoints with sample calls to confirm identical responses and permissions.
• Provide a concise hand-off doc so I can switch environments instantly.

I already have full access to the source project and can share schema, policies, and any SQL scripts you may need. When you reply, focus on your hands-on experience with Supabase edge functions, row-level security, and Postgres—links to comparable work are ideal.