200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_001qwr4y 71ms POST /ai/v1/search {} Idempotency-Key: l0SCJCVkExQB Send ▶> POST /ai/v1/session {}
< 200 OK req_001qwr4y 71ms POST /ai/v1/search {} Idempotency-Key: l0SCJCVkExQB Send ▶