🎉 Init monorepo Nuxt 4 + Laravel 12 (Story 1.1)

Setup complet de l'infrastructure projet :
- Frontend Nuxt 4 (SSR, TypeScript, i18n, Pinia, TailwindCSS)
- Backend Laravel 12 API-only avec middleware X-API-Key et CORS
- Design tokens (sky-dark, sky-accent, sky-text) et polices (Merriweather, Inter)
- Documentation planning et implementation artifacts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "skycel-frontend",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "nuxt build",
+    "dev": "nuxt dev",
+    "generate": "nuxt generate",
+    "preview": "nuxt preview",
+    "postinstall": "nuxt prepare"
+  },
+  "dependencies": {
+    "@nuxt/image": "^1.9.0",
+    "@nuxtjs/i18n": "^9.0.0",
+    "@nuxtjs/sitemap": "^7.2.0",
+    "@pinia/nuxt": "^0.9.0",
+    "nuxt": "^3.16.0",
+    "pinia-plugin-persistedstate": "^3.2.0"
+  },
+  "devDependencies": {
+    "autoprefixer": "^10.4.24",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^3.4.19",
+    "typescript": "^5.7.0"
+  }
+}