200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01fcmbif 64ms POST /ai/v1/search {} Idempotency-Key: P7uw8CJ_PsCF Send ▶> POST /ai/v1/session {}
< 200 OK req_01fcmbif 64ms POST /ai/v1/search {} Idempotency-Key: P7uw8CJ_PsCF Send ▶