Class AutotagRSSFeed

Autotag provider for RSS and Atom feeds. Parses feed items, follows article links to fetch full page content via Cheerio, and creates ContentItems with the extracted article text rather than raw RSS metadata.

Fixes:

• Text capture: follows item.link to fetch full article text instead of storing JSON.stringify(RSSItem)
• Item naming: uses the RSS item title for ContentItem.Name, and the RSS description for ContentItem.Description, instead of the source name