Refactor for i18n, CMS integration, and project slugs; enhance admin & analytics

Co-authored-by: dennis <dennis@konkol.net>

package.json

@@ -54,6 +54,14 @@
   "dependencies": {
     "@next/bundle-analyzer": "^15.1.7",
     "@prisma/client": "^5.22.0",
+    "@tiptap/extension-color": "^3.15.3",
+    "@tiptap/extension-highlight": "^3.15.3",
+    "@tiptap/extension-link": "^3.15.3",
+    "@tiptap/extension-text-style": "^3.15.3",
+    "@tiptap/extension-underline": "^3.15.3",
+    "@tiptap/html": "^3.15.3",
+    "@tiptap/react": "^3.15.3",
+    "@tiptap/starter-kit": "^3.15.3",
     "@vercel/og": "^0.6.5",
     "clsx": "^2.1.1",
     "dotenv": "^16.6.1",
@@ -61,6 +69,7 @@
     "gray-matter": "^4.0.3",
     "lucide-react": "^0.542.0",
     "next": "^15.5.7",
+    "next-intl": "^4.7.0",
     "node-cache": "^5.1.2",
     "node-fetch": "^2.7.0",
     "nodemailer": "^7.0.11",
@@ -70,7 +79,9 @@
     "react-markdown": "^10.1.0",
     "react-responsive-masonry": "^2.7.1",
     "redis": "^5.8.2",
-    "tailwind-merge": "^2.6.0"
+    "sanitize-html": "^2.17.0",
+    "tailwind-merge": "^2.6.0",
+    "zod": "^4.3.5"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",
@@ -86,6 +97,8 @@
     "@types/react-dom": "^19",
     "@types/react-responsive-masonry": "^2.6.0",
     "@types/react-syntax-highlighter": "^15.5.11",
+    "@types/sanitize-html": "^2.16.0",
+    "autoprefixer": "^10.4.20",
     "cross-env": "^7.0.3",
     "eslint": "^9",
     "eslint-config-next": "^15.5.7",
@@ -93,7 +106,7 @@
     "jest-environment-jsdom": "^29.7.0",
     "nodemailer-mock": "^2.0.9",
     "playwright": "^1.57.0",
-    "postcss": "^8",
+    "postcss": "^8.4.49",
     "prisma": "^5.22.0",
     "tailwindcss": "^3.4.17",
     "ts-jest": "^29.2.5",