200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01n1b4i2 77ms POST /ai/v1/search {} Idempotency-Key: KRVHQ77EdPbQ Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01n1b4i2 77ms POST /ai/v1/search {} Idempotency-Key: KRVHQ77EdPbQ Send ▶