200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00nzqdf2 88ms POST /ai/v1/search {} Idempotency-Key: x1D3OSK5DxEZ Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00nzqdf2 88ms POST /ai/v1/search {} Idempotency-Key: x1D3OSK5DxEZ Send ▶