200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_018gystu 40ms POST /ai/v1/search {} Idempotency-Key: W8u0h0l5OrFX Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_018gystu 40ms POST /ai/v1/search {} Idempotency-Key: W8u0h0l5OrFX Send ▶