200 OK — session open
> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_007122s9 63ms POST /ai/v1/search {} Idempotency-Key: giW8Mg7HTW-_ Send ▶> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_007122s9 63ms POST /ai/v1/search {} Idempotency-Key: giW8Mg7HTW-_ Send ▶