200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00o5a123 33ms POST /ai/v1/search {} Idempotency-Key: iS9ampkTelO_ Send ▶> POST /ai/v1/session {}
< 200 OK req_00o5a123 33ms POST /ai/v1/search {} Idempotency-Key: iS9ampkTelO_ Send ▶