Write unit test

[nafasebra]

We need some unit tests for it.

[eliottreich]

Hi, is this still available for an external contributor? I can add focused tests around the AST-based console removal using temporary files, including selected methods, dry-run, backup behavior, and JS/TS parsing. This may need a small extraction to make the CLI behavior testable, but I would keep runtime behavior unchanged and the PR tightly scoped.

[nafasebra]

That's great, you can start.
@eliottreich