200 OK — session open
> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01xqztg7 65ms POST /ai/v1/search {} Idempotency-Key: rYg4wY0mldt_ Send ▶> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01xqztg7 65ms POST /ai/v1/search {} Idempotency-Key: rYg4wY0mldt_ Send ▶