200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00j1qk7e 54ms POST /ai/v1/search {} Idempotency-Key: CC8gm9C-HEJ_ Send ▶> POST /ai/v1/session {}
< 200 OK req_00j1qk7e 54ms POST /ai/v1/search {} Idempotency-Key: CC8gm9C-HEJ_ Send ▶