200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01sgpqk7 19ms POST /ai/v1/search {} Idempotency-Key: 782vBFaL_Dd9 Send ▶> POST /ai/v1/session {}
< 200 OK req_01sgpqk7 19ms POST /ai/v1/search {} Idempotency-Key: 782vBFaL_Dd9 Send ▶