200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_0123irxu 32ms POST /ai/v1/search {} Idempotency-Key: Cd2u9AY5C24I Send ▶> POST /ai/v1/session {}
< 200 OK req_0123irxu 32ms POST /ai/v1/search {} Idempotency-Key: Cd2u9AY5C24I Send ▶