[Feature]: support changing the host/slot via CLI

### Pre-flight checklist

- [x] I searched existing issues and the [Roadmap](https://github.com/AprilNEA/OpenLogi#roadmap), and this isn't already tracked.

### Problem / motivation

One of the things solaar supports is changing the host device via CLI. For instance, on a MX Master device that can pair with up to 3 devices, you could run a command like this to have the mouse switch the host number 1:

```solaar config "MX Master 3" change-host 1```

The reason I'd like to have this is to implement a virtual KVM switch (i.e.: I want to create an automation on macOS using `openlogi` + `m1ddc` which would allow me to switch to different devices on my desk by a simple key/shortcut combination).

### Proposed solution

I'd like to be able to do:

`openlogi change-host `

Where:
* `` is the name of the device
* `` is the number of the host (typically from 1 to 3 for most of the devices [ MX Master, Lift, MX keys, etc] as they can pair to up to 3 devices).

Upon running this command, then I expect it to switch to the paired device number ``.

### Alternatives considered

_No response_

### Related area(s)

- [ ] GUI
- [ ] CLI
- [ ] Button actions / remapping
- [ ] DPI
- [ ] SmartShift
- [ ] Per-application profiles
- [ ] Configuration (TOML)
- [ ] Auto-update
- [ ] Other

### Additional context

_No response_

Start at the existing CLI command entry points and the HID++ device-control handling used by OpenLogi. Trace how a device is selected, then determine where host/slot switching belongs; done means `openlogi change-host ` selects the requested paired host on supported devices.

Written by the indexing model from the issue text.