Initial release of Miniflux RSS/Atom feed CLI skill:

• Browse, read, and manage Miniflux articles from the command line.
• List, search, and filter articles with flexible output (brief, summary, full content, JSON).
• Read full articles with support for pagination and truncation notices.
• Mark articles as read/unread, and list feeds and categories.
• Show article statistics (word count, reading time), support batch processing, and trigger feed refresh.
• Configurable via CLI flags, environment variables, or config file; provides robust error handling and standard CLI controls.