代码修改

frontend-web/src/roundtable-planning/components/Step3ReportMode.tsx

@@ -648,7 +648,7 @@ function shouldPreviewInModal(file: { name: string; mimeType: string | null }):
   const mime = file.mimeType ?? "";
   if (mime.startsWith("text/")) return true;
   if (["application/json"].includes(mime)) return true;
-  return /\.(md|markdown|txt|json|csv|log|yml|yaml|xml|html?)$/i.test(file.name);
+  return /\.(md|markdown|mmd|txt|json|csv|log|yml|yaml|xml|html?)$/i.test(file.name);
 }
 
 function formatBytes(n: number): string {