GHSA-6XX4-9WP6-65P7 skilo add follows symbolic links, allowing arbitrary local file disclosure from a malicious skill source

Impact skilo add installs a skill by recursively copying the skill directory into the target skills directory. The copy routine copydirall classified each entry with std::fs::DirEntry::filetype — which does not follow symlinks — and then copied non-directory entries with std::fs::copy, which does...