200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00pxm8nq 37ms POST /ai/v1/search {} Idempotency-Key: ns0w1M2v8eda Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_00pxm8nq 37ms POST /ai/v1/search {} Idempotency-Key: ns0w1M2v8eda Send ▶