Feature：Add voice dialogue functionality to the agent application (#11668)

### What problem does this PR solve?

Feature：Add voice dialogue functionality to the agent application

### Type of change

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

web/src/components/next-message-item/group-button.tsx

@@ -3,6 +3,8 @@ import CopyToClipboard from '@/components/copy-to-clipboard';
 import { useSetModalState } from '@/hooks/common-hooks';
 import { IRemoveMessageById } from '@/hooks/logic-hooks';
 import { AgentChatContext } from '@/pages/agent/context';
+import { downloadFile } from '@/services/file-manager-service';
+import { downloadFileFromBlob } from '@/utils/file-util';
 import {
   DeleteOutlined,
   DislikeOutlined,
@@ -12,7 +14,7 @@ import {
   SyncOutlined,
 } from '@ant-design/icons';
 import { Radio, Tooltip } from 'antd';
-import { NotebookText } from 'lucide-react';
+import { Download, NotebookText } from 'lucide-react';
 import { useCallback, useContext } from 'react';
 import { useTranslation } from 'react-i18next';
 import { ToggleGroup, ToggleGroupItem } from '../ui/toggle-group';
@@ -28,6 +30,11 @@ interface IProps {
   audioBinary?: string;
   showLoudspeaker?: boolean;
   showLog?: boolean;
+  attachment?: {
+    file_name: string;
+    doc_id: string;
+    format: string;
+  };
 }
 
 export const AssistantGroupButton = ({
@@ -38,6 +45,7 @@ export const AssistantGroupButton = ({
   showLikeButton,
   showLoudspeaker = true,
   showLog = true,
+  attachment,
 }: IProps) => {
   const { visible, hideModal, showModal, onFeedbackOk, loading } =
     useSendFeedback(messageId);
@@ -98,6 +106,27 @@ export const AssistantGroupButton = ({
             <NotebookText className="size-4" />
           </ToggleGroupItem>
         )}
+        {!!attachment?.doc_id && (
+          <ToggleGroupItem
+            value="g"
+            onClick={async () => {
+              try {
+                const response = await downloadFile({
+                  docId: attachment.doc_id,
+                  ext: attachment.format,
+                });
+                const blob = new Blob([response.data], {
+                  type: response.data.type,
+                });
+                downloadFileFromBlob(blob, attachment.file_name);
+              } catch (error) {
+                console.error('Download failed:', error);
+              }
+            }}
+          >
+            <Download size={16} />
+          </ToggleGroupItem>
+        )}
       </ToggleGroup>
       {visible && (
         <FeedbackModal