``` [Regression] Template browser lost model filter and "sort by newest" option in recent versions ```

### Prerequisites

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

### What happened?

In previous versions, the template browser supported (1) filtering templates by the base model they use (e.g. SDXL, Flux, Wan2.1, LTX-Video) and (2) sorting templates by "newest". After updating, both are gone.

The current template browser (frontend v1.48.7, Templates v0.11.34) only offers category navigation (video / image / audio / 3D / LLM), "节点图 / 应用" chips, and a keyword search box. There is no model filter and no sort option. As the number of built-in templates grows (MiniMax H3, Seedance 2.5, LTX-2.3, ...), it's hard to find templates that match locally installed models, or to spot newly added templates.

### Steps to Reproduce

1. Open ComfyUI with frontend v1.48.7.
2. Open the template browser (模板 / Templates dialog).
3. Observe: there is no filter by model and no "sort by newest" option — only category sidebar and 节点图/应用 chips. In earlier versions both controls were available in this dialog.

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

1.48.7

### Browser

Chrome/Chromium

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

Open ComfyUI with frontend v1.48.7 and reproduce the missing model filter and “sort by newest” controls in the Templates dialog. Read the template browser implementation and compare its current behavior with an earlier version where both controls existed. Done means restoring model filtering and newest sorting alongside the existing category, chip, and keyword controls.

Written by the indexing model from the issue text.