200 OK — session open
> POST /ai/v1/session {"source": "vision"}
< 200 OK req_002sv9iy 40ms POST /ai/v1/search {} Idempotency-Key: HaZzRiuVS7AZ Send ▶> POST /ai/v1/session {"source": "vision"}
< 200 OK req_002sv9iy 40ms POST /ai/v1/search {} Idempotency-Key: HaZzRiuVS7AZ Send ▶