200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01btegle 82ms POST /ai/v1/search {} Idempotency-Key: 5xfgGSpsL0-_ Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01btegle 82ms POST /ai/v1/search {} Idempotency-Key: 5xfgGSpsL0-_ Send ▶