{
  "id": "plan_20260512_001643",
  "title": "阶段②-C语言-第3课：指针进阶与内存管理",
  "steps": [
    {
      "index": 0,
      "title": "生成课件内容（知识点讲解+练习题+参考答案）",
      "status": "in_progress",
      "note": ""
    },
    {
      "index": 1,
      "title": "保存课件到本地文件",
      "status": "done",
      "note": ""
    },
    {
      "index": 2,
      "title": "将知识点写入知识图谱",
      "status": "done",
      "note": ""
    },
    {
      "index": 3,
      "title": "质量自检",
      "status": "pending",
      "note": ""
    }
  ],
  "created_at": "2026-05-12T00:16:43.203752",
  "updated_at": "2026-05-12T00:18:36.938318"
}