200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01tyb2xj 50ms POST /ai/v1/search {} Idempotency-Key: Yt9cvDBLdVzw Send ▶> POST /ai/v1/session {}
< 200 OK req_01tyb2xj 50ms POST /ai/v1/search {} Idempotency-Key: Yt9cvDBLdVzw Send ▶