{"service":"DownPaper API","version":"2.2.0","auth_required":true,"telegram_enabled":true,"endpoints":{"POST /api/login":"获取登录二维码（无需Token）","GET /api/qrcode":"获取二维码图片（无需Token）","POST /api/login/confirm":"确认登录（无需Token）","GET /api/login/status":"检查登录状态","POST /api/submit":"提交下载任务","GET /api/tasks":"列出所有任务","POST /api/download":"下载文献（同步）","GET /api/files":"列出已下载文件","GET /api/logs":"查看日志"}}