curl 'https://platform.nemu.cc/api/v1/metrics?page=1&limit=20' \
  -H 'Authorization: Bearer <access_token>'

const metrics = await nemu.metrics.list({ page: 1, limit: 20 });

{
  "data": [
    {
      "id": "met_1",
      "user_id": "3f0e...",
      "key_id": "key_1",
      "method": "POST",
      "endpoint": "/v1/chat/completions",
      "status_code": 200,
      "duration_ms": 812,
      "tokens_input": 120,
      "tokens_output": 340,
      "cost": 0.0021,
      "provider_id": "prov_1",
      "model_id": "mdl_1",
      "created_at": "2026-01-04T10:22:00.000Z"
    }
  ],
  "total": 1,
  "page": 1,
  "limit": 20,
  "total_pages": 1
}