Add academic paper search, news aggregator, and Hacker News plugins with collapsible output

- 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

plugins/help.py

@@ -501,6 +501,53 @@ Search Exploit-DB for security vulnerabilities and exploits. Returns detailed in
 </p>
 </details>
 
+<details><summary>📚 <strong>!arxiv [query]</strong></summary>
+<p>Search academic papers on arXiv.org. Categories include AI, ML, Security, Physics, Math, and more. No API key required.</p>
+<p><strong>Commands:</strong></p>
+<ul>
+<li><code>!arxiv <query></code> - Search for papers (shows abstracts)</li>
+<li><code>!arxiv list <query></code> - List papers without abstracts</li>
+<li><code>!arxiv category <category></code> - Browse recent papers by category</li>
+<li><code>!arxiv recent <category></code> - Most recent papers in category</li>
+<li><code>!arxiv random</code> - Get a random paper</li>
+<li><code>!arxiv <id></code> - Get paper by arXiv ID (e.g., 2101.00101)</li>
+</ul>
+<p><strong>Categories:</strong> ai, ml, security, crypto, cv, nlp, math, physics, quantum, bio, software</p>
+</details>
+
+<details><summary>📰 <strong>!news [category/query]</strong></summary>
+<p>Fetch latest headlines from various news categories using GNews API. Requires GNEWS_API_KEY environment variable.</p>
+<p><strong>Commands:</strong></p>
+<ul>
+<li><code>!news</code> - Get top headlines (default)</li>
+<li><code>!news top</code> - Top headlines</li>
+<li><code>!news world</code> - World news</li>
+<li><code>!news tech</code> - Technology news</li>
+<li><code>!news business</code> - Business news</li>
+<li><code>!news science</code> - Science news</li>
+<li><code>!news health</code> - Health news</li>
+<li><code>!news crypto</code> - Cryptocurrency news</li>
+<li><code>!news search <query></code> - Search for specific news</li>
+</ul>
+</details>
+
+<details><summary>🔥 <strong>!hn [command]</strong></summary>
+<p>Fetch top stories from Hacker News using Firebase API. No API key required.</p>
+<p><strong>Commands:</strong></p>
+<ul>
+<li><code>!hn</code> - Show top 5 stories (default)</li>
+<li><code>!hn top</code> - Top stories</li>
+<li><code>!hn new</code> - Newest stories</li>
+<li><code>!hn best</code> - Best stories</li>
+<li><code>!hn ask</code> - Ask HN threads</li>
+<li><code>!hn show</code> - Show HN posts</li>
+<li><code>!hn job</code> - Job postings</li>
+<li><code>!hn story <id></code> - Get details of a specific story</li>
+<li><code>!hn comments <id></code> - Show comments for a story</li>
+<li><code>!hn search <query></code> - Search stories (via Algolia)</li>
+</ul>
+</details>
+
 <details><summary>⏱️ <strong>!cron [add|remove] [room_id] [cron_entry] [command]</strong></summary>
 <p>Schedule automated commands using cron syntax. Add or remove cron jobs for specific rooms and commands.</p>
 </details>