When the conversation was created, for the auto-resume age rule. created_at is authoritative (a UUID session id from the Corilus store encodes nothing); the id timestamps are the fallback for older backends, and null means "treat as old".
created_at
When the conversation was created, for the auto-resume age rule.
created_atis authoritative (a UUID session id from the Corilus store encodes nothing); the id timestamps are the fallback for older backends, and null means "treat as old".