{"message":"WantGoo 期貨正價差爬蟲 API","version":"1.0.0","endpoints":{"/scrape-futures":"POST - 抓取期貨正價差數據","/render":"POST - 通用頁面渲染（兼容性）","/healthz":"GET - 健康檢查"},"usage":{"example":{"url":"POST /scrape-futures","body":{"url":"https://www.wantgoo.com/futures/stock-futures-ranking","headless":false,"timeout":60,"max_retries":3}}}}