200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00ipl6w3 64ms POST /ai/v1/search {} Idempotency-Key: Q_PKNmMR-HHT Send ▶> POST /ai/v1/session {}
< 200 OK req_00ipl6w3 64ms POST /ai/v1/search {} Idempotency-Key: Q_PKNmMR-HHT Send ▶