sh1pt init default project name breaks on Windows paths

[ayskobtw-lil]

Bug

sh1pt init currently derives the prompt's default project name with:

process.cwd().split('/').pop()

That works for POSIX-style paths, but on Windows process.cwd() uses backslashes. In a directory like C:\Users\alice\projects\my-app, the init prompt can default to the whole path instead of my-app.

Repro

Run sh1pt init from a Windows project directory and inspect the default value in the Project name prompt.

Expected

The default project name should be the basename of the current directory on both POSIX and Windows paths.

Proposed fix

Use a small path-normalizing helper for the init default name and cover both POSIX and Windows-style paths in a focused CLI test.