feat: add krea2 support

[leejet]

Summary

• Add krea2 support

Related Issue / Discussion

N/A

Additional Information

.\bin\Release\sd-cli.exe --diffusion-model krea2_raw-Q8_0.gguf --llm ..\..\ComfyUI\models\text_encoders\Qwen3-VL-4B-Instruct-Q4_K_M.gguf --vae ..\..\ComfyUI\models\vae\wan_2.1_vae.safetensors -p "a lovely cat"  --diffusion-fa -v --offload-to-cpu

Checklist

• I have read and confirmed this PR follows the contribution guidelines.

[stduhpf]

How are you so fast? I was only halfay through with it

[leejet]

In fact, if I hadn’t initially used Qwen3-4B instead of Qwen3-VL-4B, which cost me two hours of debugging, it could have been done faster.