200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01p0hqnm 28ms POST /ai/v1/search {} Idempotency-Key: ckeXmPoNDy8b Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01p0hqnm 28ms POST /ai/v1/search {} Idempotency-Key: ckeXmPoNDy8b Send ▶