200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_011w3szv 62ms POST /ai/v1/search {} Idempotency-Key: xi3sQ8A_WP7y Send ▶> POST /ai/v1/session {}
< 200 OK req_011w3szv 62ms POST /ai/v1/search {} Idempotency-Key: xi3sQ8A_WP7y Send ▶