200 OK — session open
> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01y5zm9p 80ms POST /ai/v1/search {} Idempotency-Key: Q55WcDmtB3BT Send ▶> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01y5zm9p 80ms POST /ai/v1/search {} Idempotency-Key: Q55WcDmtB3BT Send ▶