fix: add MX Master 4 device to known logi devices

[awkure]

Summary

Registers the Logitech MX Master 4 in the known-device catalog so Mouser can resolve it by USB product ID and by common HID product strings, using the existing mx_master UI layout.

Changes

• core/logi_devices.py: Add a LogiDeviceSpec for mx_master_4 with product ID 0xB042, aliases (including “MX Master 4 for Mac”, MX_Master_4, and “for Business”), and ui_layout="mx_master".
• tests/test_logi_devices.py: Add unit tests that assert resolution by product ID and by HID-style product name.

[Thxlx]

Thank you. Was working on the same. This doesn't work on macos for me. There is more configuration needed in mouse_hook.py so that the Action Button works.

add _BTN_GESTURE = 6 in Line 918
add

elif btn == _BTN_GESTURE:
self._on_hid_gesture_down()
should_block = True

in line 1337

add

elif btn == _BTN_GESTURE:
self._on_hid_gesture_up()
should_block = True

in line 1358

[thisislvca]

@Thxlx Put up a follow-up for this here: #42

it wires macOS button 6 into the gesture handlers in mouse_hook.py and adds a regression test around that path.

if you get a chance, can you try that PR on your setup and let me know if the action button works there?