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

package.json

@@ -5,7 +5,7 @@
   "private": true,
   "scripts": {
     "dev": "next dev -p 3050",
-    "build": "prisma generate && cross-env NODE_OPTIONS='--max-old-space-size=4096' next build",
+    "build": "node scripts/build.js",
     "trigger:indexing": "tsx scripts/trigger-indexing.ts",
     "submit:indexnow": "tsx scripts/submit-indexnow.ts",
     "start": "next start",