Bug: Hermes nao propaga chat_id no metadata do callback. Callback
controller nao conseguia resolver qual session armazenar a resposta.
WARN "no session_key resolvable — ignorando" descartava todas as
respostas do Construtor.
Fix: HermesBuilder::Storage.remember_last_session() grava ultima
session por account quando admin chama /start ou /create. Callback
le essa key via last_session_for(account_id). MVP-safe pra 1 admin
por conta.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
5f6aed05c9