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/app/Models/Audit.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Audit extends Model
+{
+    use HasFactory;
+
+    protected $table = 'audits';
+
+    public const UPDATED_AT = null;
+
+    protected $fillable = [
+        'utilisateur_id',
+        'action',
+        'table_cible',
+        'enregistrement_id',
+        'anciennes_valeurs',
+        'nouvelles_valeurs',
+        'ip_address',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'anciennes_valeurs' => 'array',
+            'nouvelles_valeurs' => 'array',
+        ];
+    }
+
+    // ──── Relations ────
+
+    public function utilisateur(): BelongsTo
+    {
+        return $this->belongsTo(Utilisateur::class);
+    }
+}