feat(cart): implement cart editing policies and update related functionality

app/Domains/Tenant/Resources/CartEditingPolicyResource.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Domains\Tenant\Resources;
+
+use App\Domains\Tenant\Enums\CartEditingPolicy;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/** @mixin CartEditingPolicy */
+class CartEditingPolicyResource extends JsonResource
+{
+    /** @return array<string, bool|string> */
+    public function toArray(Request $request): array
+    {
+        return [
+            'code' => $this->resource->value,
+            'allow_modify' => $this->resource->allowsModification(),
+            'allow_delete' => $this->resource->allowsRemoval(),
+            'allow_update_quantity' => $this->resource->allowsQuantityChanges(),
+            'allow_update_variant' => $this->resource->allowsVariantChanges(),
+        ];
+    }
+}