200 OK — session open
> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01h396fo 42ms POST /ai/v1/search {} Idempotency-Key: 5h1oTo2UfzB- Send ▶> POST /ai/v1/session {"source": "strawberry"}
< 200 OK req_01h396fo 42ms POST /ai/v1/search {} Idempotency-Key: 5h1oTo2UfzB- Send ▶