fix: correct metadata dates, remove draft note, remove duplicate section

- Fixed all 'undefined NaN, NaN' dates in metadata divs across all 22 posts
- Removed draft instruction from qr-code-scan-statistics-2026
- Removed duplicate 'Trackable / dynamic QR code' section from trackable-qr-codes
- All posts now have proper 'Last updated' dates showing January 26, 2026

src/middleware.ts

@@ -11,12 +11,15 @@ export function middleware(req: NextRequest) {
   if (path === '/guide/bulk-qr-code-generation') {
     return NextResponse.redirect(new URL('/learn/developer', req.url), 301);
   }
-  if (path === '/guide/qr-code-best-practices') {
-    return NextResponse.redirect(new URL('/learn/basics', req.url), 301);
-  }
-
-  // Public routes that don't require authentication
-  const publicPaths = [
+  if (path === '/guide/qr-code-best-practices') {
+    return NextResponse.redirect(new URL('/learn/basics', req.url), 301);
+  }
+  if (path === '/create-qr') {
+    return NextResponse.redirect(new URL('/dynamic-qr-code-generator', req.url), 301);
+  }
+
+  // Public routes that don't require authentication
+  const publicPaths = [
     '/',
     '/pricing',
     '/faq',
@@ -42,11 +45,13 @@ export function middleware(req: NextRequest) {
     '/display',
     '/contact',
     '/about',
-    '/learn',
-    '/authors',
-    '/press',
-    '/testimonials',
-  ];
+    '/learn',
+    '/use-cases',
+    '/authors',
+    '/press',
+    '/testimonials',
+    '/qr-code-for-marketing-campaigns',
+  ];
 
   // Check if path is public
   const isPublicPath = publicPaths.some(p => path === p || path.startsWith(p + '/'));
@@ -95,4 +100,4 @@ export const config = {
      */
     '/((?!_next/static|_next/image|favicon.ico|logo.svg|og-image.png).*)',
   ],
-};
+};