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

README.md

@@ -548,6 +548,88 @@ Generates text using the Infermatic AI API with multiple model support:
 **📰 !xkcd**
 Fetches and displays a random XKCD comic.
 
+### Academic Paper Search
+
+**📚 !arxiv [query]**
+Search academic papers on arXiv.org with categories including AI, ML, Security, Physics, Math, and more.
+No API key required - completely free to use.
+
+**Features:**
+- Search across 20+ categories including computer science, mathematics, physics, economics
+- Fetch paper details, abstracts, authors, and publication info
+- Get papers by arXiv ID or search with custom queries
+- Browse recent papers by category or get random papers
+
+**Commands:**
+- `!arxiv <query>` - Search for papers with given query terms
+- `!arxiv list <query>` - List papers without showing abstracts
+- `!arxiv category <category>` - Browse recent papers in a specific category
+- `!arxiv recent <category>` - Most recent papers in a category
+- `!arxiv random` - Get a random paper from arXiv
+- `!arxiv <id>` - Get paper by arXiv ID (e.g., 2101.00101)
+
+**Categories:** ai, ml, security, crypto, cv, nlp, math, physics, quantum, bio, software, economics
+
+**Examples:**
+```bash
+!arxiv machine learning
+!arxiv list quantum computing
+!arxiv category ai
+!arxiv recent ml
+!arxiv random
+!arxiv 2101.00101
+```
+
+### News Aggregator
+
+**📰 !news [category]**
+Fetch latest headlines from various news categories using GNews API.
+*Requires GNEWS_API_KEY environment variable*
+
+**Categories:**
+- `!news` - Top headlines (default)
+- `!news world` - World news
+- `!news tech` - Technology news
+- `!news business` - Business news
+- `!news science` - Science news
+- `!news health` - Health news
+- `!news crypto` - Cryptocurrency news
+- `!news search <query>` - Search for specific news
+
+**Examples:**
+```bash
+!news
+!news tech
+!news search artificial intelligence
+```
+
+### Hacker News Reader
+
+**🔥 !hn [command]**
+Fetch top stories from Hacker News using Firebase API.
+No API key required - completely free to use.
+
+**Commands:**
+- `!hn` - Show top 5 stories (default)
+- `!hn top` - Top stories
+- `!hn new` - Newest stories
+- `!hn best` - Best stories
+- `!hn ask` - Ask HN threads
+- `!hn show` - Show HN posts
+- `!hn job` - Job postings
+- `!hn story <id>` - Get details of a specific story
+- `!hn comments <id>` - Show comments for a story
+- `!hn search <query>` - Search stories (via Algolia)
+
+**Examples:**
+```bash
+!hn
+!hn new
+!hn story 1234567
+!hn comments 1234567
+!hn search artificial intelligence
+```
+
 ### Administration Commands
 *Admin only - requires admin_user configuration*