#120071 deleted hud-modifier-native.test.ts (darwin-only, so it ran nowhere:
js-tests is ubuntu-only) and its native fixtures. hud-modifier-gesture.h is
the clean-tap state machine both the macOS and Linux XI2 helpers include and
is portable C, so the restored test compiles hud-modifier-gesture.test.c with
cc (xcrun clang on macOS) and runs it inside the electron vitest project,
which js-tests runs via check:test:desktop:platforms. Loosening the 500 ms
tap bound in the header turns it red.
The macOS event-adapter (.m), Windows C# (.cs) and node:test (.mjs) files are
not restored: they need a macOS/Windows toolchain and no JS lane runs there.
36f165a162