200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01lt24u0 55ms POST /ai/v1/search {} Idempotency-Key: L66Kwll1Po9T Send ▶> POST /ai/v1/session {}
< 200 OK req_01lt24u0 55ms POST /ai/v1/search {} Idempotency-Key: L66Kwll1Po9T Send ▶