200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00k8940p 90ms POST /ai/v1/search {} Idempotency-Key: AtXNvaKusvtQ Send ▶> POST /ai/v1/session {}
< 200 OK req_00k8940p 90ms POST /ai/v1/search {} Idempotency-Key: AtXNvaKusvtQ Send ▶