200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00zid42n 19ms POST /ai/v1/search {} Idempotency-Key: 5lfky4x_LBud Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00zid42n 19ms POST /ai/v1/search {} Idempotency-Key: 5lfky4x_LBud Send ▶