Native support for LongCat-Image & LongCat-Image-Edit models

### Feature Idea

I am one of the developers of the LongCat-Image series models. I am writing to request native support for the [**LongCat-Image** and **LongCat-Image-Edit**](https://github.com/meituan-longcat/LongCat-Image) within ComfyUI. While there are third-party extensions available, native integration would ensure better stability, optimization, and accessibility for the broader AIGC community.

These models introduce significant improvements in specific areas:
- **LongCat-Image**: It offers the most comprehensive support for the Chinese character set among all current open-source models, enabling superior text rendering performance.
- **LongCat-Image-Edit**: This is currently the best-performing (SOTA) open-source image editing model with the smallest parameter count. We are also scheduled to open-source a faster, low-step distilled version next week, which will further enhance inference speed.

Native support would be highly beneficial for users looking for efficient editing and high-quality Chinese text generation.

Thank you for your time and for maintaining this great project!

### Existing Solutions

_No response_

### Other

_No response_