chore(products): migrate payload CMS lexical AST into permanent markdown

app/[locale]/products/[...slug]/page.tsx

@@ -17,7 +17,6 @@ import Link from 'next/link';
 import { notFound, redirect } from 'next/navigation';
 import ProductEngagementTracker from '@/components/analytics/ProductEngagementTracker';
 import MDXContent from '@/components/MDXContent';
-import { lexicalToMarkdown } from '@/lib/mdx-utils';
 
 interface ProductPageProps {
   params: Promise<{
@@ -296,10 +295,6 @@ export default async function ProductPage({ params }: ProductPageProps) {
           const rawJsonStr = dataMatch[1].replace(/&quot;/g, '"');
           const data = JSON.parse(rawJsonStr);
           technicalItems = data.technicalItems || [];
-
-          if (data.content?.root && descriptionContent.trim() === '') {
-            descriptionContent = lexicalToMarkdown(data.content.root);
-          }
         } catch (e) {
           console.error('Failed to parse productTabs data for page:', e);
         }