200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01xwsti0 64ms POST /ai/v1/search {} Idempotency-Key: HKmQ1lk9csNz Send ▶> POST /ai/v1/session {}
< 200 OK req_01xwsti0 64ms POST /ai/v1/search {} Idempotency-Key: HKmQ1lk9csNz Send ▶