200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_018o0dv1 53ms POST /ai/v1/search {} Idempotency-Key: Hhp9nG5zs-Fa Send ▶> POST /ai/v1/session {}
< 200 OK req_018o0dv1 53ms POST /ai/v1/search {} Idempotency-Key: Hhp9nG5zs-Fa Send ▶