Supabase / External Backend Integration (High Priority)

It would be extremely valuable if Base44 officially supported first-class integration with external backends like Supabase for database, authentication, and row-level security (RLS).

This would allow builders to:

• Manage large, relational datasets beyond the current entity limits

• Use mature auth flows (OAuth, magic links, MFA)

• Implement enterprise-grade security via RLS and JWT

Base44 would remain the UI + workflow layer, while Supabase handles data and security. This would significantly improve scalability, stability, and investor readiness for production apps.