Feature request: allow renaming the companion pet

Question

## Summary

It would be great to have the ability to rename the companion pet (currently fixed as "Loambot" for mine) via a setting — for example, in `settings.json` or through a slash command.

## Motivation

The companion pet is a nice touch, but users may want to personalize the name to make it feel more like their own. A simple config option would go a long way.

## Suggested approach

Add a setting such as:

```json
{
  "companionName": "MyBotName"
}
```

Or allow renaming via a command lik