200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01kzpj3j 66ms POST /ai/v1/search {} Idempotency-Key: xQsx7C6aLmz4 Send ▶> POST /ai/v1/session {}
< 200 OK req_01kzpj3j 66ms POST /ai/v1/search {} Idempotency-Key: xQsx7C6aLmz4 Send ▶