fix(portal): prepare approved resource mappings safely

www/package.json

@@ -13,6 +13,7 @@
     "deploy": "node tools/deploy.mjs",
     "deploy:rollback": "node tools/deploy-rollback.mjs",
     "deploy:portal-resources": "node tools/deploy-portal-resources.mjs",
+    "portal:prepare": "node tools/employee-portal-migrate.mjs",
     "preview": "astro preview",
     "extract:blog-footers": "node tools/extract-blog-footers.mjs",
     "crawl:live": "node tools/crawl-live-site.mjs",