chore: avb transition and automated testing setup

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mb-grid-solutions.com",
-  "version": "1.0.0",
+  "version": "1.3.13",
   "type": "module",
   "packageManager": "pnpm@10.18.3",
   "scripts": {
@@ -17,6 +17,9 @@
     "check:http": "tsx ./scripts/check-http.ts",
     "check:apis": "tsx ./scripts/check-apis.ts",
     "check:locale": "tsx ./scripts/check-locale.ts",
+    "check:html": "tsx ./scripts/check-html.ts",
+    "check:assets": "tsx ./scripts/check-broken-assets.ts",
+    "check:wcag": "tsx ./scripts/wcag-sitemap.ts",
     "backup:db": "bash ./scripts/backup-db.sh"
   },
   "keywords": [],
@@ -72,12 +75,15 @@
     "eslint": "^8.57.1",
     "eslint-config-next": "15.1.6",
     "happy-dom": "^20.6.1",
+    "html-validate": "^10.8.0",
     "husky": "^9.1.7",
     "jsdom": "^27.4.0",
     "lint-staged": "^16.2.7",
+    "pa11y-ci": "^4.0.1",
     "pino-pretty": "^13.1.3",
     "postcss": "^8.5.6",
     "prettier": "^3.5.0",
+    "puppeteer": "^24.37.3",
     "tailwindcss": "^4.1.18",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",