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

.vscode/settings.json

@@ -41,6 +41,7 @@
 		"rescope",
 		"roadmaps",
 		"roleplay",
+		"roomodes",
 		"runbooks",
 		"Serilog",
 		"shadcn",