200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_001e4far 30ms POST /ai/v1/search {} Idempotency-Key: z1_DwZPb0LFa Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_001e4far 30ms POST /ai/v1/search {} Idempotency-Key: z1_DwZPb0LFa Send ▶