pub fn compute_dir_hash_from_path(dir_path: &Path) -> Option<[u8; 32]>Expand description
Compute a directory hash by reading the directory at path.
Each child’s metadata (size, mtime, type) is hashed, then all children
are sorted by name and combined into a single BLAKE3 directory fingerprint.
Skips foxing internal files (.foxing*, .foxing_meta sidecars).