Function normalize_workspace_root 

pub fn normalize_workspace_root(p: &Path) -> PathBuf

Normalise a path for comparison against jj’s workspace root output: canonicalize (resolve symlinks / macOS case) and strip the Windows verbatim prefix (\\?\…, which canonicalize adds but jj never emits). A path that doesn’t exist (or otherwise fails to canonicalize — e.g. a worktree directory already removed) falls back to its own literal form.

Shared by workspace_root_matches and vcs-core’s async worktree-removal path, so the two resolvers normalise identically (T-080).