Game module for the desktop builds

golf-host.wasm: the port's compiled game code as a plain WebAssembly module (built from 3574b5b with tools/native/build-mac.sh; includes FFmpeg's Bink decoder, LGPL 2.1+). The Desktop builds workflow downloads it and wraps it in the native app. Not a player download: get the desktop app from a SimGolf desktop release. Contains no game files; you still need your own disc image and no-CD exe.