200 OK — session open
> POST /ai/v1/session {}
< 200 OK req_001nyr4u 54ms POST /ai/v1/search {} Idempotency-Key: 7sseT_Smesnf Send ▶> POST /ai/v1/session {}
< 200 OK req_001nyr4u 54ms POST /ai/v1/search {} Idempotency-Key: 7sseT_Smesnf Send ▶