Add comprehensive workspace exploration functionality allowing users to browse and view files from the host filesystem. This feature enables inspection of AI agent workspace contents directly through the web interface.
- Add workspace-fs library for safe file system operations with path validation
- Create tRPC workspace router with directory listing and file reading endpoints
- Implement workspace UI components with directory tree navigation
- Add markdown file viewer with syntax highlighting
- Configure Docker volume mounting for ~/.openclaw/workspace access
- Update navigation with tab-based switching between Monitor and Workspace views
