评价对比

点运行时，站点把这份 JSON 发到 POST /api/playground。运行需要登录。

{
  "state": {
    "option_a": "选项 A — UltraRun Pro：均分 4.8★。评价夸缓震和马拉松舒适，窄脚更合适。",
    "option_b": "选项 B — TrailLite 3：均分 4.2★。评价说湿地抓地很好，但鞋头偏窄。",
    "user_need": "要一双能跑泥泞越野、鞋头够宽的鞋。"
  },
  "questions": {
    "better_match": {
      "type": "choice",
      "instructions": "Which option better matches the user's stated need and review evidence?",
      "criteria": {
        "option_a": "Option A is the better match",
        "option_b": "Option B is the better match",
        "tie": "Neither clearly wins"
      }
    },
    "match_score": {
      "type": "score",
      "instructions": "Overall match quality for the preferred option",
      "criteria": [
        "Weak match — significant gaps vs user need",
        "Moderate match — tradeoffs remain",
        "Strong match — evidence aligns well with need"
      ]
    }
  }
}