- Introduced PLUGIN_API.md for detailed plugin development guidelines.
- Implemented PLUGIN_SYSTEM_IMPLEMENTATION.md summarizing all requested features.
- Created example-plugin showcasing all API features including commands, message interceptors, settings, and notifications.
- Added plugin-metadata.json for the example plugin with relevant metadata.
- Implemented API server using Express, including endpoints for health check, status, mute, deafen, channel management, and message sending.
- Added middleware for CORS and JSON body parsing.
- Created test scripts (Node.js and Bash) for API endpoint verification.
- Documented API usage and integration in new API documentation files.
- Updated package.json to include necessary dependencies (express, cors, body-parser).
