Need a freelancer to migrate our Lovable-built React app (it uses Lovable Cloud) to a new Lovable project connected to our own external Supabase, using GitHub as the source of truth. Work must be completed on live screenshare only (through remote control). No direct access to our GitHub, Lovable, or Supabase accounts can be provided at this time. Scope (screenshare guided execution): - Create a fresh Lovable project and connect it to our external Supabase. - Connect the new Lovable project to GitHub and migrate the full codebase from our previous Lovable Cloud repo into the new repo (copy files, preserve structure). - Update env vars and Supabase configuration to point to the external Supabase (URLs, keys, redirect URLs). - Migrate database schema using existing Supabase migrations; verify RLS policies, Auth providers, Storage buckets, Edge Functions (if any), and integrations/webhooks. - Data migration: perform export/import and validate key records. - Validate end-to-end: Lovable preview/build, core user journeys, and a short QA checklist. We must be able to continue building the app in new Lovable project inside Lovable itself (but it should use external Supabase).