[Bug]: 推理qwen3-32B模型，输出中文有概率性出现乱码

### Your environment

commit id：069c4f9cd26c123d75f71f57975f08471a93ab44
xllm version：0.8.0
驱动：25.2.2

<img width="1231" height="269" alt="Image" src="https://github.com/user-attachments/assets/b800f842-1e99-49b3-833e-1ee4d5f2405a" />

### 🐛 Describe the bug

用xllm推理Qwen3-32B模型，输出中文有概率性出现乱码