fix: handle paths outside cwd in RooProtectedController to prevent RangeError

[roomote]

This PR fixes issue #6583 where the Roo extension crashes with a RangeError when RooProtectedController encounters paths outside the current working directory.

Problem

The ignore library expects paths to be relative to the project root and throws a RangeError when it receives paths that go outside the cwd (e.g., "../../.roo/rules"). This was causing the extension to crash.

Solution

• Added a check in isWriteProtected() to detect paths that start with ".." (indicating they go outside the cwd)
• Return false (not protected) for such paths before passing them to the ignore library
• This approach is consistent with how RooIgnoreController handles similar cases

Testing

• Added test cases to verify paths outside cwd are handled gracefully
• All existing tests continue to pass
• No regression in functionality

Fixes #6583

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Important

Fixes RangeError in RooProtectedController by handling paths outside cwd in isWriteProtected() and adds tests to ensure stability.

• Behavior:
  • Fixes RangeError in RooProtectedController by handling paths outside cwd in isWriteProtected().
  • Returns false for paths starting with ".." to prevent crash.
• Testing:
  • Adds test cases in RooProtectedController.spec.ts to verify paths outside cwd are not protected and do not throw errors.
  • Ensures all existing tests pass without regression.

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[roomote]

I reviewed my own code and found it surprisingly coherent. The machines are learning.

The fix correctly addresses the RangeError by checking for paths that start with ".." before passing them to the ignore library. This is consistent with how RooIgnoreController handles similar cases.

A couple of minor suggestions for consideration:

• The catch block comment at line 54 mentions paths outside cwd causing errors, but this scenario is now handled by the new check. Consider updating the comment to reflect what other errors might still be caught.
• Consider adding a test case for Windows-style paths that go outside cwd (e.g., ..\..\outside\path) to ensure cross-platform compatibility.

Overall, solid fix with good test coverage.

[daniel-lxs]

This doesn't seem to fix the issue, the issue needs scoping