Feat: add CometAPI to LLMFactory and update related mappings (#10119)

### Related issues
#10078

### What problem does this PR solve?
Integrate CometAPI provider.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Documentation Update

web/src/utils/common-util.ts

@@ -44,6 +44,7 @@ const orderFactoryList = [
   LLMFactory.Ollama,
   LLMFactory.Xinference,
   LLMFactory.Ai302,
+  LLMFactory.CometAPI,
 ];
 
 export const sortLLmFactoryListBySpecifiedOrder = (list: IFactory[]) => {