chore: update imports to Node.js prefix and add error handling improvements (#221)

## CHANGES

- Replace require('fs') with require('node:fs')
- Replace require('path') with require('node:path')
- Add debug logging for directory cleanup
- Add roomodes to VSCode dictionary
- Format README workflow guides section
- Improve error handling in installer
- Add fallback error message display

README.md

@@ -254,6 +254,7 @@ npm install
 ## Documentation & Guides
 
 ### Workflow Guides
+
 - 📚 [Universal BMAD Workflow Guide](docs/bmad-workflow-guide.md) - Core workflow that applies to all IDEs
 - 🎯 [Cursor Guide](docs/cursor-guide.md) - Complete workflow for Cursor users
 - 🤖 [Claude Code Guide](docs/claude-code-guide.md) - Complete workflow for Claude Code users