200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_0093kw21 77ms POST /ai/v1/search {} Idempotency-Key: jL9oM-0SjV47 Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_0093kw21 77ms POST /ai/v1/search {} Idempotency-Key: jL9oM-0SjV47 Send ▶