200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00170wkd 18ms POST /ai/v1/search {} Idempotency-Key: Kf6bHkmhdDeQ Send ▶> POST /ai/v1/session {}
< 200 OK req_00170wkd 18ms POST /ai/v1/search {} Idempotency-Key: Kf6bHkmhdDeQ Send ▶