feat: model set avatar

src/types/model.d.ts

@@ -2,6 +2,7 @@ import { ModelStatusEnum } from '@/constants/model';
 import type { ModelSchema } from './mongoSchema';
 export interface ModelUpdateParams {
   name: string;
+  avatar: string;
   systemPrompt: string;
   temperature: number;
   search: ModelSchema['search'];