### What problem does this PR solve?
```
RAGFlow(api/default)> show provider 'zhipu-ai'
RAGFlow(api/default)> show provider 'zhipu-ai' instance 'test';
RAGFlow(api/default)> show provider 'zhipu-ai' instance 'test' balance;
RAGFlow(api/default)> show provider 'zhipu-ai' model 'glm-4.5';
```
### Type of change
- [x] Refactoring
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>