🎉 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>

api/config/cors.php

@@ -0,0 +1,21 @@
+<?php
+
+return [
+
+    'paths' => ['api/*'],
+
+    'allowed_methods' => ['*'],
+
+    'allowed_origins' => explode(',', env('CORS_ALLOWED_ORIGINS', 'http://localhost:3000')),
+
+    'allowed_origins_patterns' => [],
+
+    'allowed_headers' => ['*'],
+
+    'exposed_headers' => [],
+
+    'max_age' => 0,
+
+    'supports_credentials' => false,
+
+];