RSS Fetcher - 统一RSS采集系统 | Unified RSS Feed Fetcher

核心特性 | Core Features

• 增量抓取 / Incremental Fetching - 只抓取新文章，基于URL哈希自动去重 | Only fetch new articles, auto-deduplicate based on URL hash
• 自动标签 / Auto-tagging - 优先使用RSS自带category，无则自动提取标题关键词 | Prioritize RSS category, auto-extract keywords from title if absent
• HTML报告 / HTML Reports - 生成可筛选的静态HTML页面，支持日期/分类/标签多维度筛选 | Generate filterable static HTML pages with date/category/tag filters
• 源健康监控 / Source Health Monitoring - 检测RSS源可用性，支持批量检查 | Monitor RSS source availability with batch checking
• 分类管理 / Category Management - 文章自动继承源的分类，支持多维度筛选 | Articles inherit source categories, multi-dimensional filtering
• 超时设置 / Timeout Setting - 单源30秒超时，避免长时间阻塞 | 30-second timeout per source to avoid blocking

数据库设计 | Database Design

表结构 | Table Structure