Bug: longText类型字段数据查看不了的问题还改吗？

### Chat2DB Version

Chat2DB Local3.1.16

### Describe the bug

无法查看具体的值，很久了这个问题

<img width="159" height="70" alt="Image" src="https://github.com/user-attachments/assets/5bdfd358-1d95-4045-8c28-cb5b233896fc" />

<img width="222" height="105" alt="Image" src="https://github.com/user-attachments/assets/9bc423f6-5689-4ad1-8446-ea3c30402baa" />