Make bottom of the compilation results more informative

UX/DX suggestion.

<img width="680" height="122" alt="Image" src="https://github.com/user-attachments/assets/50d89775-7f30-42fe-8eba-82068a8f88c9" />

✨ is shown regardless of the outcome. It would be great to output number of errors/warnings in case of any with appropriate icons. And use ✨ only if there are no error nor warnings.