{"message":"英语文章分级评估 API","endpoints":{"POST /evaluate":"评估文章等级","POST /extract-keywords":"提取文章关键词","POST /analyze-article":"分析文章（提取重点单词和熟词僻义）","POST /generate-wordcards":"生成单词释义卡片","POST /filter-vocabulary":"根据大纲词汇筛选文章单词","GET /docs":"查看 API 文档"}}