200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01lh3yo5 70ms POST /ai/v1/search {} Idempotency-Key: 9sp5wkF0GCbQ Send ▶> POST /ai/v1/session {}
< 200 OK req_01lh3yo5 70ms POST /ai/v1/search {} Idempotency-Key: 9sp5wkF0GCbQ Send ▶