[P0.48] Multiple maintainers listed

[EmersonBraun]

User Story

As a dev evaluating, I want ver múltiplos maintainers listados no README — mesmo que 2-3 no início, muda percepção de side-project para projeto sério.

Context

Derivada do Phase 0 PRD #211 — story #48.
Plano de execução: PHASE-0-EXECUTION-PLAN.md

Definition of Done

• Implementation
• Testes/validação
• Documentation updated
• Changeset (se aplicável)
• PR aprovado e merged

[EmersonBraun]

This is a strategic / business task that an automated coding agent cannot execute (requires human action: legal filings, vendor relationships, hiring, marketing, organizational decisions). Leaving open for the maintainer team to schedule.