Feat: Move the reasoning field to the root of the payload in the completion interface. (#12990)

### What problem does this PR solve?


### Type of change


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

web/src/interfaces/database/chat.ts

@@ -100,8 +100,6 @@ export interface Message {
   files?: (File | UploadResponseDataType)[];
   chatBoxId?: string;
   attachment?: IAttachment;
-  reasoning?: boolean;
-  internet?: boolean;
 }
 
 export interface IReferenceChunk {