libaudclient

• Path: arch/maintained/libaudclient (new – vendored from AUR 2026-08-02 to unblock mp3splt-gtk, which needs libaudclient>=3)
• 2026-08-02: added as a submodule from AUR (https://aur.archlinux.org/libaudclient.git, https since AUR’s git-ssh endpoint was down for maintenance). Built+published cleanly (1:3.5rc2-1, + libaudclient-debug), x86_64.