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/components/message-input/next.tsx

@@ -30,6 +30,11 @@ import { useCallback, useEffect, useState } from 'react';
 import { toast } from 'sonner';
 import { AudioButton } from '../ui/audio-button';
 
+export type NextMessageInputOnPressEnterParameter = {
+  enableThinking: boolean;
+  enableInternet: boolean;
+};
+
 interface NextMessageInputProps {
   disabled: boolean;
   value: string;
@@ -43,10 +48,7 @@ interface NextMessageInputProps {
   onPressEnter({
     enableThinking,
     enableInternet,
-  }: {
-    enableThinking: boolean;
-    enableInternet: boolean;
-  }): void;
+  }: NextMessageInputOnPressEnterParameter): void;
   onInputChange: React.ChangeEventHandler<HTMLTextAreaElement>;
   createConversationBeforeUploadDocument?(message: string): Promise<any>;
   stopOutputMessage?(): void;
@@ -56,10 +58,6 @@ interface NextMessageInputProps {
   showInternet?: boolean;
 }
 
-export type NextMessageInputOnPressEnterParameter = Parameters<
-  NextMessageInputProps['onPressEnter']
->;
-
 export function NextMessageInput({
   isUploading = false,
   value,