数据格式（点开看）
{
"meta": {
"title": "书名",
"domains": { "foundation": { "label": "基础", "color": "#315e97" } },
"edgeTypes": { "evolution": { "label": "演进", "color": "#315e97", "dash": "none" } }
},
"chapters": [
{ "id": "c1", "number": 1, "title": "第一章",
"paragraphs": [ { "id": "c1p1", "page": "012", "text": "原文…" } ] }
],
"nodes": [
{ "id": "perceptron", "name": "感知机", "en": "Perceptron",
"type": "model", // model | concept | person | org
"domain": "foundation",
"year": 1958,
"summary": "一句话定义",
"mentions": [ { "paragraphId": "c1p1", "page": "031" } ],
"py": "ganzhi", "initials": "gz" // 可选，供拼音搜索
}
],
"edges": [
{ "id": "e1", "source": "mcculloch", "target": "perceptron",
"type": "evolution", "note": "关系说明", "evidence": "原文引文", "page": "031" }
]
}
校验：node tools/validate.js 你的书.json