Architectural principles

• Separation between presentation layer and decision engine logic
• Backend-enforced rules via database (RLS and RPC)
• Multi-tenant isolation by account and CNPJ
• Entitlement-driven access control tied to subscription logic
• Stateless frontend with controlled persistence (localStorage + backend sync)

Scalability logic

The system is not designed for brute-force scale, but for controlled expansion. Each additional account contributes to structured data accumulation, reinforcing the decision layer and enabling future benchmarking, monitoring and intelligence.