200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_001vc1a0 23ms POST /ai/v1/search {} Idempotency-Key: 6lnVj9ywxYu2 Send ▶> POST /ai/v1/session {}
< 200 OK req_001vc1a0 23ms POST /ai/v1/search {} Idempotency-Key: 6lnVj9ywxYu2 Send ▶