200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01hzfcd2 62ms POST /ai/v1/search {} Idempotency-Key: RzUB_yGYAR3A Send ▶> POST /ai/v1/session {}
< 200 OK req_01hzfcd2 62ms POST /ai/v1/search {} Idempotency-Key: RzUB_yGYAR3A Send ▶