200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_0136iyw8 59ms POST /ai/v1/search {} Idempotency-Key: bb4kwMC0_FLX Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_0136iyw8 59ms POST /ai/v1/search {} Idempotency-Key: bb4kwMC0_FLX Send ▶