fix: fix markdown escape issue (#30299)

web/app/components/base/chat/chat/answer/basic-content.tsx

@@ -18,12 +18,19 @@ const BasicContent: FC<BasicContentProps> = ({
   if (annotation?.logAnnotation)
     return <Markdown content={annotation?.logAnnotation.content || ''} />
 
+  // Preserve Windows UNC paths and similar backslash-heavy strings by
+  // wrapping them in inline code so Markdown renders backslashes verbatim.
+  let displayContent = content
+  if (typeof content === 'string' && /^\\\\\S.*/.test(content) && !/^`.*`$/.test(content)) {
+    displayContent = `\`${content}\``
+  }
+
   return (
     <Markdown
       className={cn(
         item.isError && '!text-[#F04438]',
       )}
-      content={content}
+      content={displayContent}
     />
   )
 }

web/app/components/base/chat/chat/answer/index.tsx

@@ -111,7 +111,7 @@ const Answer: FC<AnswerProps> = ({
     }
   }, [switchSibling, item.prevSibling, item.nextSibling])
 
-  const contentIsEmpty = content.trim() === ''
+  const contentIsEmpty = typeof content === 'string' && content.trim() === ''
 
   return (
     <div className="mb-2 flex last:mb-0">