Bug raiz que causou todos os problemas de "Hermes repetindo info de
turns anteriores" hoje:
Message tem default_scope order(created_at: :asc). O combined_incoming_
content fazia .order(created_at: :desc) que GERA SQL com 2 orderings
em conflito ("ORDER BY created_at ASC, created_at DESC") — no Postgres
o ASC ganha quando a primeira coluna é igual. Resultado:
last_real_outgoing virava a MAIS ANTIGA outgoing (a saudação inicial),
não a mais recente. Aí o scope incoming agrupava TODAS as msgs do
cliente desde o "Oi" da Juliana, juntando wifi+pet num turn só.
Caso real conv 6064 (2026-05-02 21:18):
T1: cliente "Preciso senha wifi" → Hermes "Prime2025"
T2: cliente "Posso levar animais?"
→ debounce agrupou ["Preciso senha wifi", "Posso levar animais"]
como se fossem MSGS DO MESMO TURN, mandou pro Hermes como
"Cliente acabou de dizer: Preciso senha wifi.\nPosso levar animais?"
→ Hermes consultou faq_lookup com query "senha wifi e animais"
→ Resposta: "Senha Prime2025 e pode levar animais"
Fix: usa .reorder(created_at: :desc) que sobrescreve default_scope,
gerando SQL limpa com só "ORDER BY created_at DESC".
Camadas 3 (strip linhas) e 4 (topic gating) que adicionei antes são
paliativos válidos como defesa em profundidade, mas o problema raiz
era esse default_scope.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Chatwoot
The modern customer support platform, an open-source alternative to Intercom, Zendesk, Salesforce Service Cloud etc.
Chatwoot is the modern, open-source, and self-hosted customer support platform designed to help businesses deliver exceptional customer support experience. Built for scale and flexibility, Chatwoot gives you full control over your customer data while providing powerful tools to manage conversations across channels.
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