200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00t22yuj 23ms POST /ai/v1/search {} Idempotency-Key: KvuMZDpq_Mtx Send ▶> POST /ai/v1/session {}
< 200 OK req_00t22yuj 23ms POST /ai/v1/search {} Idempotency-Key: KvuMZDpq_Mtx Send ▶