deepseek-reasoner model failed

### Description

"Error: Request failed: {"error":{"message":"Missing reasoning_content field..."} and I cannot open the website. 

Will this project support the RISC-V platform in the future?"

### Expected Behavior

enable/disable thinking mode button

### Steps to Reproduce

use deepseek R1 model

### OpenFang Version

0.4.3

### Operating System

Windows

### Logs / Screenshots

_No response_