昇腾lmdeploy使用 lmdeploy APIClient 接口时，推理结果被截断

### Checklist

- [X] 1. I have searched related issues but cannot get the expected help.
- [X] 2. The bug has not been fixed in the latest version.
- [X] 3. Please note that if the bug-related issue you submitted lacks corresponding environment info and a minimal reproducible demo, it will be challenging for us to reproduce and resolve the issue, reducing the likelihood of receiving feedback.

### Describe the bug

昇腾lmdeploy使用lmdeploy serve api_server \
/LLaMA-Factory-main/model/Qwen2.5-7B-Instruct \
--backend pytorch \
--server-port 8000 \
--device ascend \
--session-len 8192启动服务，使用 lmdeploy APIClient 接口接收结果时，推理结果被截断。

### Reproduction

API服务启动命令如下：lmdeploy serve api_server \
/LLaMA-Factory-main/model/Qwen2.5-7B-Instruct \
--backend pytorch \
--server-port 8000 \
--device ascend \
--session-len 8192，lmdeploy APIClient 接口代码如下：

### Environment

```Shell
TorchVision: 0.18.1
LMDeploy: 0.6.4+191a7dd
transformers: 4.47.1
gradio: Not Found
fastapi: 0.115.6
pydantic: 2.10.4
triton: Not Found
```

### Error traceback

```Shell
没有报错
```