Modulo 6 da Fase 1. noticesSelects.js extrai os 2 selects do
noticeService (GLOBAL_NOTICE_SELECT, NOTICE_DISMISSAL_SELECT) +
noticeService passa a usa-los (zero select inline). Conversations
ganha foundation: 3 services (_tenantGuards, conversationsSelects,
conversationsRepository). Channel factory (WhatsApp/SMS/Email) e
composables ficam pra sessao dedicada — escopo M6 era so destravar
o supabase.from() inline.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Leonardo