200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01f1yj25 21ms POST /ai/v1/search {} Idempotency-Key: m8yL1X_H2FI3 Send ▶> POST /ai/v1/session {}
< 200 OK req_01f1yj25 21ms POST /ai/v1/search {} Idempotency-Key: m8yL1X_H2FI3 Send ▶