added countries support expanded for ISO 3166 standard

Modules/Countries/Http/Requests/UpdateCountryRequest.php

@@ -3,20 +3,32 @@
 namespace Modules\Countries\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+use Modules\Countries\Support\Iso3166;
 
 class UpdateCountryRequest extends FormRequest
 {
+    /**
+     * Authorize country reference-data administration.
+     */
     public function authorize(): bool
     {
-        return (bool) $this->user();
+        return (bool) $this->user()?->isMpbaPlatformAdmin();
     }
 
+    /**
+     * @return array<string, mixed>
+     */
     public function rules(): array
     {
         return [
             'display_name' => ['nullable', 'string', 'max:255'],
             'is_active' => ['nullable', 'boolean'],
             'sort_order' => ['nullable', 'integer', 'min:0', 'max:999999'],
+            'iso_status' => ['required', 'string', Rule::in(Iso3166::statuses())],
+            'independent' => ['nullable', 'boolean'],
+            'region' => ['nullable', 'string', 'max:100'],
+            'subregion' => ['nullable', 'string', 'max:100'],
         ];
     }
 }