[
  {
    "date": "2026-05-04",
    "sku_id": "m_coldbrew",
    "channel": "smartstore",
    "rating_1to5": 4.6,
    "neg_keyword": null
  },
  {
    "date": "2026-05-05",
    "sku_id": "m_coldbrew",
    "channel": "smartstore",
    "rating_1to5": 4.5,
    "neg_keyword": null
  },
  {
    "date": "2026-05-06",
    "sku_id": "m_coldbrew",
    "channel": "smartstore",
    "rating_1to5": 3.1,
    "neg_keyword": "배송 지연"
  },
  {
    "date": "2026-05-06",
    "sku_id": "m_coldbrew",
    "channel": "coupang",
    "rating_1to5": 2.8,
    "neg_keyword": "포장 파손"
  },
  {
    "date": "2026-05-07",
    "sku_id": "m_bean200",
    "channel": "own_mall",
    "rating_1to5": 4.4,
    "neg_keyword": null
  },
  {
    "date": "2026-05-07",
    "sku_id": null,
    "channel": "coupang",
    "rating_1to5": 3.9,
    "neg_keyword": "맛 약함"
  },
  {
    "date": "2026-05-08",
    "sku_id": "m_dripbag",
    "channel": "own_mall",
    "rating_1to5": null,
    "neg_keyword": null
  },
  {
    "date": "2026-05-08",
    "sku_id": "m_coldbrew",
    "channel": "smartstore",
    "rating_1to5": 4.7,
    "neg_keyword": null
  },
  {
    "date": "2026-05-09",
    "sku_id": "m_bean200",
    "channel": "coupang",
    "rating_1to5": 3.4,
    "neg_keyword": "신선도"
  },
  {
    "date": "2026-05-09",
    "sku_id": "m_coldbrew",
    "channel": "coupang",
    "rating_1to5": 2.6,
    "neg_keyword": "포장 파손"
  },
  {
    "date": "2026-05-10",
    "sku_id": "m_dripbag",
    "channel": "own_mall",
    "rating_1to5": 4.2,
    "neg_keyword": null
  },
  {
    "date": "2026-05-10",
    "sku_id": "m_bean200",
    "channel": "smartstore",
    "rating_1to5": 4.5,
    "neg_keyword": null
  }
]