Add SearXNG web search for current information

- Add searxng.py service for web queries via SearXNG API
- Integrate search into ai_chat.py with AI-driven search decisions
- AI determines if query needs current info, then searches automatically
- Add SEARXNG_URL, SEARXNG_ENABLED, SEARXNG_MAX_RESULTS config options
- Update documentation in README.md, CLAUDE.md, and .env.example

README.md

@@ -5,6 +5,7 @@ A customizable Discord bot that responds to @mentions with AI-generated response
 ## Features
 
 - **Multi-Provider AI**: Supports OpenAI, OpenRouter, Anthropic (Claude), and Google Gemini
+- **Web Search**: Access current information via SearXNG integration
 - **Fully Customizable**: Configure bot name, personality, and behavior
 - **Conversation Memory**: Remembers context per user
 - **Easy Deployment**: Docker support included
@@ -75,6 +76,16 @@ All configuration is done via environment variables in `.env`.
 | `AI_TEMPERATURE` | `0.7` | Response creativity (0.0-2.0) |
 | `MAX_CONVERSATION_HISTORY` | `20` | Messages to remember per user |
 
+### Web Search (SearXNG)
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `SEARXNG_URL` | (none) | SearXNG instance URL |
+| `SEARXNG_ENABLED` | `true` | Enable/disable web search |
+| `SEARXNG_MAX_RESULTS` | `5` | Max search results to fetch |
+
+When configured, the bot automatically searches the web for queries that need current information (news, weather, etc.).
+
 ### Example Configurations
 
 **Friendly Assistant:**
@@ -143,7 +154,8 @@ src/daemon_boyfriend/
 └── services/
     ├── ai_service.py   # AI provider factory
     ├── providers/      # AI providers
-    └── conversation.py # Chat history
+    ├── conversation.py # Chat history
+    └── searxng.py      # Web search service
 ```
 
 ## License