200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_015jsvin 37ms POST /ai/v1/search {} Idempotency-Key: yPe_i1v23Ugk Send ▶> POST /ai/v1/session {}
< 200 OK req_015jsvin 37ms POST /ai/v1/search {} Idempotency-Key: yPe_i1v23Ugk Send ▶