feat: establish reservation portal foundation

app/Domain/Audit/Models/AuditLog.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Domain\Audit\Models;
+
+use App\Models\User;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+
+class AuditLog extends Model
+{
+    public const UPDATED_AT = null;
+
+    protected $fillable = [
+        'actor_id', 'event', 'auditable_type', 'auditable_id', 'ip_address',
+        'user_agent', 'before', 'after', 'metadata', 'created_at',
+    ];
+
+    protected function casts(): array
+    {
+        return ['before' => 'array', 'after' => 'array', 'metadata' => 'array', 'created_at' => 'datetime'];
+    }
+
+    /** @return BelongsTo<User, $this> */
+    public function actor(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'actor_id');
+    }
+
+    /** @return MorphTo<Model, $this> */
+    public function auditable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+}