200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00cpuep3 40ms POST /ai/v1/search {} Idempotency-Key: -9WnChKFNdwM Send ▶> POST /ai/v1/session {}
< 200 OK req_00cpuep3 40ms POST /ai/v1/search {} Idempotency-Key: -9WnChKFNdwM Send ▶