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/js/app.js

@@ -0,0 +1 @@
+import './bootstrap';

backend/resources/js/bootstrap.js

@@ -0,0 +1,4 @@
+import axios from 'axios';
+window.axios = axios;
+
+window.axios.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';