What happened?

Starting pi from a non-C: drive (e.g. E:) produces "[Skill conflicts]" warning with a malformed path like

[Skill conflicts]
   E:\C:\Users\xxx\AppData\Roaming\npm\node_modules@\pi-unipi\notify\skills
     skill path does not exist

Steps to reproduce

Observed on a setup where pi packages are managed via ~/.pi/agent/npm/package.json and the working directory is on a different drive than home:

1. Ensure ~/.pi/agent/settings.json has packages like @pi-unipi/notify installed (via agent npm project, not system global)
2. cd E:\project\relwatch (or any directory on a non-C: drive)
3. pi

Expected behavior

No warning. Skills load correctly regardless of which drive pi's cwd is on.

Version

0.75.3

I have a fix branch. Can submit a PR if approved.