200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01mkkbc9 68ms POST /ai/v1/search {} Idempotency-Key: ZgVsj7flLn3w Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01mkkbc9 68ms POST /ai/v1/search {} Idempotency-Key: ZgVsj7flLn3w Send ▶