200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00vhc2a1 60ms POST /ai/v1/search {} Idempotency-Key: x-mt9EBv_FLQ Send ▶> POST /ai/v1/session {}
< 200 OK req_00vhc2a1 60ms POST /ai/v1/search {} Idempotency-Key: x-mt9EBv_FLQ Send ▶