Missing built-in-node: Mahiro

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have custom nodes enabled

### What happened?

When "mahiro" searched in node panel, only Positive-Biased Guidance shows.

---

Using:

ComfyUI 0.28.0
ComfyUI_frontend v1.47.9

### Steps to Reproduce

1.Click node side panel/menu.
2.Search "mahiro".
3.Confusion and self doubt.
4.Visit ComfyUI website.
5.Redirect to GitHub and ask for guidance.
6.Go to store to get batteries for keyboard while waiting. Maybe snack time.

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

v1.47.9

### Browser

Other

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

💜

Start by reproducing the search in the node side panel/menu with “mahiro” on the reported ComfyUI frontend version. Trace how the built-in node is registered and how node-panel search results are populated. Done means the Mahiro node appears when searched, alongside Positive-Biased Guidance.

Written by the indexing model from the issue text.