Connect Meshkee catalog, customer login, and SEO sitemap config.

Wire products and articles to the public API, send guests to the customer portal, and publish sitemap-config for Meshkee nginx.

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -3,10 +3,12 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
+    "prebuild": "node scripts/generate-sitemap-config.mjs",
     "dev": "next dev --port 3001",
     "build": "next build",
     "start": "next start --port 3001",
-    "lint": "eslint"
+    "lint": "eslint",
+    "generate:sitemap-config": "node scripts/generate-sitemap-config.mjs"
   },
   "dependencies": {
     "next": "16.3.0",