- Integrate Perplexity AI API for intelligent question answering
- Add AIResponseHandler class with question detection and response generation
- Implement automatic question detection using regex patterns
- Add AI commands: /perplexity, /ai on/off for configuration
- Display AI responses in terminal before sending to Slack
- Update configuration management to store Perplexity API key
- Add comprehensive AI features documentation to README
- Update requirements.txt with OpenAI library dependency
- Fix Perplexity model name to use valid 'sonar' model
- Enhance interactive chat mode with AI-powered capabilities
- Maintain backward compatibility with existing CLI functionality
