feat: migrate landing from Next.js to Nuxt 4 (Vue 3)

Full 1:1 migration preserving all visuals, animations and behavior:
- Nuxt 4 + Vue 3 (script setup, TypeScript strict) with SSG output
- Tailwind CSS v4 with @tailwindcss/vite
- Ant Design Vue 4 (dark theme, RTL, Persian locale) for design system
- Pinia for state management (ui + contact stores)
- motion-v (framer-motion port) for all animations
- lucide-vue-next for icons
- SEO improvements: og:image, canonical fix, real 404 page, JSON-LD services
- JS bundle reduced from 302KB to 239KB gzip
- Docker/nginx deployment preserved (out/ -> nginx)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,27 +1,31 @@
 {
   "name": "aria-imen-landing",
   "private": true,
-  "version": "0.1.0",
+  "version": "0.2.0",
   "type": "module",
   "scripts": {
-    "dev": "next dev",
-    "build": "next build",
-    "start": "next start",
-    "lint": "next lint"
+    "dev": "nuxt dev",
+    "build": "nuxt generate",
+    "preview": "npx serve out",
+    "typecheck": "nuxt typecheck",
+    "postinstall": "nuxt prepare"
   },
   "dependencies": {
-    "framer-motion": "^13.2.0",
-    "lucide-react": "^0.475.0",
-    "next": "15.5.25",
-    "react": "19.0.0",
-    "react-dom": "19.0.0"
+    "@pinia/nuxt": "^1.0.2",
+    "@vueuse/core": "^15.0.0",
+    "ant-design-vue": "^4.2.6",
+    "lucide-vue-next": "^0.475.0",
+    "motion-v": "^2.6.0",
+    "nuxt": "^4.5.2",
+    "pinia": "^4.0.3",
+    "vue": "^3.5.43",
+    "vue-router": "^5.3.1"
   },
   "devDependencies": {
-    "@tailwindcss/postcss": "4.1.17",
-    "@types/node": "22.19.17",
-    "@types/react": "19.0.8",
-    "@types/react-dom": "19.0.3",
-    "tailwindcss": "4.1.17",
-    "typescript": "5.9.3"
+    "@tailwindcss/vite": "^4.1.17",
+    "@types/node": "^22.20.5",
+    "tailwindcss": "^4.1.17",
+    "typescript": "^5.9.3",
+    "vue-tsc": "^3.3.12"
   }
 }