feat: establish reservation portal foundation

app/Domain/Identity/Models/Role.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Domain\Identity\Models;
+
+use App\Models\User;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+
+class Role extends Model
+{
+    protected $fillable = ['name', 'description'];
+
+    /** @return BelongsToMany<User, $this> */
+    public function users(): BelongsToMany
+    {
+        return $this->belongsToMany(User::class);
+    }
+
+    /** @return BelongsToMany<Permission, $this> */
+    public function permissions(): BelongsToMany
+    {
+        return $this->belongsToMany(Permission::class);
+    }
+}