200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_00sxnnxn 21ms POST /ai/v1/search {} Idempotency-Key: _2wmP_9Wie99 Send ▶> POST /ai/v1/session {}
< 200 OK req_00sxnnxn 21ms POST /ai/v1/search {} Idempotency-Key: _2wmP_9Wie99 Send ▶