feat: implement product management module with CRUD operations, service layer, and validation logic

app/Domains/Catalog/Services/ProductService.php

@@ -277,4 +277,27 @@ class ProductService
 
         return $products;
     }
+
+    public function getProductDetail(Tenant $tenant, Product $product): Product
+    {
+        $product->load([
+            'attachments',
+            'brand',
+            'category',
+            'attributes.options',
+        ]);
+
+        $defaultVariant = $product->variants()
+            ->with([
+                'attachments',
+                'definitions.attribute.options',
+            ])
+            ->first();
+
+        if ($defaultVariant) {
+            $product->setDefaultVariant($defaultVariant);
+        }
+
+        return $product;
+    }
 }