feat: initialisation complète du projet CESIZen

- Backend Laravel 11 (API REST, JWT auth, PostgreSQL)
- Frontend Next.js 14 (React, TypeScript, Tailwind CSS)
- Docker Compose (PostgreSQL, backend, frontend)
- Modules : auth, profil, tracker émotions, informations, admin

backend/resources/css/app.css

@@ -0,0 +1,11 @@
+@import 'tailwindcss';
+
+@source '../../vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php';
+@source '../../storage/framework/views/*.php';
+@source '../**/*.blade.php';
+@source '../**/*.js';
+
+@theme {
+    --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
+        'Segoe UI Symbol', 'Noto Color Emoji';
+}