200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_01dv74n5 76ms POST /ai/v1/search {} Idempotency-Key: HTOI21P3uYeC Send ▶> POST /ai/v1/session {}
< 200 OK req_01dv74n5 76ms POST /ai/v1/search {} Idempotency-Key: HTOI21P3uYeC Send ▶