[Feature / Bug]: MX Keys S: Calculator key (CID 0x000A) not captured/remappable on macOS

### Pre-flight checklist
- [x] I searched existing issues and this is not an exact duplicate.
- [x] I am on the latest release (0.8.1).
- [x] Logi Options+ is fully uninstalled.

### Device model
Logitech MX Keys S (BTLE / direct, VID `046d` PID `b378`)

### Operating system
macOS (Apple Silicon)

### Which part of OpenLogi?
Agent / Button remapping

### Summary / Description
On the MX Keys S, the asset metadata identifies the 4 keys above the numpad (`SLOT_NAME_CALCULATOR` CID `0x000A`, `SLOT_NAME_SCREEN_CAPTURE` CID `0x010A`, `SLOT_NAME_LOOK_UP`, `SLOT_NAME_LOCK`).

While `KeyScreenCapture` is diverted and remapped properly by `openlogi-agent`, the **Calculator key** (which outputs `AL Calculator` / Consumer Usage `0x0192` or `NX_SYSDEFINED` subtype 8 on macOS) is not captured or diverted by the agent. Consequently, assigning an action to launch Calculator or a custom shortcut on that physical key does not take effect.

### Expected Behavior
Allow diverting/capturing the Calculator key (`CID 0x000A` / `AL Calculator`) on the MX Keys S so that actions (such as `OpenApplication`) can be assigned to it directly via OpenLogi.

Start by reading the openlogi-agent handling for KeyScreenCapture and searching for SLOT_NAME_CALCULATOR, CID 0x000A, Consumer Usage 0x0192, and NX_SYSDEFINED subtype 8. Done means the MX Keys S Calculator key can be diverted on macOS and assigned an OpenApplication action, with relevant agent coverage if the repository provides it.

Written by the indexing model from the issue text.