refactor(core): enhance SDK structure and documentation

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/Data/NominalAccounts/Identification/RefundUnidentifiedTransactionResponseData.php

@@ -1,13 +1,28 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for the response of a refund request for an unidentified transaction.
+// RESPONSIBILITY: To hold and type-safely represent the outcome and status of an initiated refund operation.
+// INPUTS: Raw JSON object from the API response.
+// OUTPUTS: A structured object containing refund request status information.
+// LINKS: Requests/NominalAccounts/Identification/RefundUnidentifiedTransactionRequest.php
+*/
 
 namespace Apoloz\AlfaBank\Data\NominalAccounts\Identification;
 
+// <SECTION name="module_imports" intent="Import the base Spatie Laravel Data class.">
+// <BELIEF_STATE "Extending `Spatie\LaravelData\Data` enables automatic casting from JSON and provides other DTO benefits.">
 use Spatie\LaravelData\Data;
+// </SECTION>
 
+// <SECTION name="class_definition" intent="Define a DTO for the response of a refund request.">
+// <BELIEF_STATE "This DTO provides a clear, type-safe contract for tracking the status of a refund request, which is a critical financial operation.">
 class RefundUnidentifiedTransactionResponseData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define the properties of a refund request response.">
+    // <BELIEF_STATE "The `refundId` serves as a unique identifier for the specific refund operation, and `status` indicates its current state.">
     public function __construct(
         public string $refundId,
         public string $status,
     ) {}
+    // </SECTION>
 }