Function entry_is_dir 

pub async fn entry_is_dir(entry: &DirEntry) -> bool

Resolve whether entry is a directory, following symlinks.

Returns false if the stat fails (broken symlink, permission error, etc.) — the caller then skips the entry rather than aborting the walk.

DirEntry::metadata() does not traverse symlinks (it behaves like symlink_metadata), so a symlink pointing at a directory would wrongly report false. To honor the documented symlink-following contract — which crawlers like deno/python/ruby rely on for symlinked package directories — we stat the resolved entry.path() via tokio::fs::metadata, which does follow links.