[Bug] Cannot run DeepSeek-TNG-R1T2-Chimera IQ1_S UD

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### 问题描述

When trying to run DeepSeek-TNG-R1T2-Chimera-UD-IQ1_S, following error occurs:
NotImplementedError: ggml_type 18 not implemented

According to https://kvcache-ai.github.io/ktransformers/en/install.html#support-quantize-format
IQ1_S should be supported correctly.

### 复现步骤

ktransformers --gguf_path /models/ --model_path tngtech/DeepSeek-TNG-R1T2-Chimera --model_name unsloth/DeepSeek-TNG-R1T2-Chimera-GGUF --cache_q4 true --temperature 0.6 --top_p 0.95 --force_think --host 0.0.0.0 --port 10002 --optimize_config_path /models/DeepSeek-V3-Chat.yaml

Model: DeepSeek-TNG-R1T2-Chimera

### 环境信息

Dockerfile: [approachingai/ktransformers:latest-AVX2]
GPU: NVIDIA A4000 16G
CPU: AMD EPYC 7773X

Start by reproducing the command with the DeepSeek-TNG-R1T2-Chimera IQ1_S model in the approachingai/ktransformers:latest-AVX2 environment. Trace the ktransformers CLI path that handles the model until ggml_type 18 raises NotImplementedError, then compare it with the documented IQ1_S support; done means the supplied command runs without that error.

Written by the indexing model from the issue text.