OpenWave v0.1.6

Initial public app packaging for OpenWave Linux Wave XLR controller.\n\nHighlights:\n- Python package metadata and openwave launcher\n- Updated public README and install instructions\n- Arch PKGBUILD updated for the public repository\n- Background daemon syncs Wave XLR mute and capture keepalive\n- First-run setup installs udev permissions and user systemd service