- Added arxiv.py plugin for searching academic papers on arXiv.org
- Added news.py plugin for fetching news from GNews API
- Added hackernews.py plugin for fetching stories from Hacker News
- All plugins now output results in collapsible <details> tags for better UX
- Enhanced funguy.py with improved error handling, logging, and plugin management
- Updated help.py and README.md with documentation for new plugins
- Added !plugins command to list loaded plugins
- Improved configuration loading and plugin disable/enable functionality
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