update: add comments describing the use cases for class

includes/ProductStatusRollback.php

@@ -6,6 +6,18 @@
 use Throwable;
 use WC_Product;
 
+/**
+ * Class to handle product status rollback operations.
+ *
+ * This class is responsible for processing batch operations to change the status
+ * of products from 'reject' to 'draft'. It includes methods to register necessary
+ * hooks and to process the batch operation.
+ *
+ * Use cases:
+ * - Automatically change the status of rejected products to draft.
+ * - Log the status changes and handle errors during the process.
+ * - Schedule the next batch operation if there are more products to process.
+ */
 class ProductStatusRollback {
     /**
      * Queue group identifier