Function scan_tree 

pub fn scan_tree(
    cwd: &Path,
    reference: &str,
) -> Result<Vec<PointerEntry>, Error>

Walk the tree at reference, returning one entry per LFS pointer blob.

Unlike scan_pointers, this does not walk history and does not dedupe by LFS OID — each path in the tree that points at an LFS pointer becomes its own entry. Multiple paths pointing at the same LFS object yield multiple entries, with their working-tree paths preserved. This matches upstream’s ScanTree semantics, used by ls-files and status.

Paths are read from git ls-tree -r -z so embedded newlines or quoting metacharacters round-trip cleanly.