200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_008b5f5y 68ms POST /ai/v1/search {} Idempotency-Key: QW786O7K7Vyq Send ▶> POST /ai/v1/session {}
< 200 OK req_008b5f5y 68ms POST /ai/v1/search {} Idempotency-Key: QW786O7K7Vyq Send ▶