Phase 0.2: migrate remaining SVGs to lucide-react icons

frontend/src/components/dms/FilePreviewModal.tsx

@@ -10,6 +10,7 @@ import { Modal } from '@/components/ui/Modal';
 import { Button } from '@/components/ui/Button';
 import { Badge } from '@/components/ui/Badge';
 import { getFilePreviewUrl, type DmsFile } from '@/api/dms';
+import { FileText } from 'lucide-react';
 
 export interface FilePreviewModalProps {
   open: boolean;
@@ -81,9 +82,7 @@ export function FilePreviewModal({ open, file, onClose }: FilePreviewModalProps)
 
         {!isPdf && !isImage && (
           <div className="text-center py-12" data-testid="no-preview-available">
-            <svg className="mx-auto h-12 w-12 text-secondary-300" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z" />
-            </svg>
+            <FileText className="mx-auto h-12 w-12 text-secondary-300" aria-hidden="true" strokeWidth={1.5} />
             <p className="mt-2 text-sm text-secondary-500">{t('dms.preview')}</p>
           </div>
         )}