[Device]: Spotlight

### Pre-flight checklist

- [x] I quit **Logi Options+** before testing.
- [x] I searched existing issues for my device.

### Device model

Spotlight

### Connection

Other / not sure

### What's the problem?

Requesting support for a device not yet supported

### `openlogi list` output

```text
SPOTLIGHT (—, vid=046d pid=b503)
└─ slot 255 ● SPOTLIGHT (presenter, wpid=?, battery=—)
model_ids=[b503,405c,0000] ext=00 serial=— unit_id=a96fc460 transports=equad+btle
```

### `openlogi diag features` output

```text
device: SPOTLIGHT (direct 046d:b503)
dump failed: device at index 0xff did not respond to HID++
```

### Details

It would be nice if this software could support Spotlight in the future. Main feature would be a digital laser pointer as a minimum requirement. Is this thinkable?

Start by reproducing the reported `openlogi list` and `openlogi diag features` output for the Spotlight (046d:b503), then trace how unsupported devices and HID++ feature responses are handled. Done means the device is recognized and its digital laser pointer works as the minimum supported feature, with suitable verification for the device's response behavior.

Written by the indexing model from the issue text.