200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01l1qc0u 35ms POST /ai/v1/search {} Idempotency-Key: k_Pc6NkX3YOW Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01l1qc0u 35ms POST /ai/v1/search {} Idempotency-Key: k_Pc6NkX3YOW Send ▶