200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01c9h1w4 30ms POST /ai/v1/search {} Idempotency-Key: As9sgPPHz-v0 Send ▶> POST /ai/v1/session {}
< 200 OK req_01c9h1w4 30ms POST /ai/v1/search {} Idempotency-Key: As9sgPPHz-v0 Send ▶