Function normalize_native_path_display 

pub fn normalize_native_path_display(path: impl AsRef<Path>) -> String

Normalize a native filesystem path for stable diagnostics and metadata.

The returned path uses forward slashes, strips Windows extended path prefixes such as \\?\, and converts extended UNC paths to //server/share form. This helper is for persisted metadata and agent-facing output; use Path/PathBuf for host filesystem access.