200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01kg1s67 42ms POST /ai/v1/search {} Idempotency-Key: gY6d1Re7csAA Send ▶> POST /ai/v1/session {}
< 200 OK req_01kg1s67 42ms POST /ai/v1/search {} Idempotency-Key: gY6d1Re7csAA Send ▶