Demote xclip, wl-clipboard, and wtype from hard depends to optdepends. These are injection/clipboard fallbacks (alongside existing xdotool); IBus and other primary paths may not need them on every install. Responds to AUR feedback (Ataraxy, comment #1079450). Follow-up to #579 (virtual python-pywhispercpp); AUR picks this up on the next v* publish.