treewide: include PipeWire op and enforce PulseAudio check

This fully replaces PulseAudio with PipeWire and enforces the PulseAudio check and error message. The pipewire-pulse daemon is handled in the NixOS module.

Closes #26.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/hpkg/build.nix

@@ -176,7 +176,6 @@ let
       x11 = allow_x11;
       dbus = allow_dbus;
       pipewire = allow_audio;
-      pulse = allow_audio;
     };
 
     mesa = if gpu then mesaWrappers else null;

cmd/hpkg/test/test.py

@@ -90,7 +90,7 @@ wait_for_window("hakurei@machine-foot")
 machine.send_chars("clear; wayland-info && touch /tmp/success-client\n")
 machine.wait_for_file("/tmp/hakurei.0/tmpdir/2/success-client")
 collect_state_ui("app_wayland")
-check_state("foot", {"wayland": True, "dbus": True, "pipewire": True, "pulse": True})
+check_state("foot", {"wayland": True, "dbus": True, "pipewire": True})
 # Verify acl on XDG_RUNTIME_DIR:
 print(machine.succeed("getfacl --absolute-names --omit-header --numeric /run/user/1000 | grep 10002"))
 machine.send_chars("exit\n")