refactor(core): enhance SDK structure and documentation

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

src/Sbp/Data/Reversal/QrcReversalRequestData.php

@@ -1,11 +1,25 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for an SBP QR Code reversal request payload.
+// RESPONSIBILITY: To hold and type-safely represent the parameters needed to initiate a QR Code reversal.
+// INPUTS: Terminal number (TermNo), currency, and various optional reversal identifiers.
+// OUTPUTS: A structured, type-safe object for the `QrcReversalRequest` payload.
+// LINKS: Sbp/Requests/Reversal/QrcReversalRequest.php
+*/
 
 namespace Apoloz\AlfaBank\Sbp\Data\Reversal;
 
+// <SECTION name="module_imports" intent="Import the base Spatie Laravel Data class.">
+// <BELIEF_STATE "Extending `Spatie\LaravelData\Data` enables automatic casting from arrays and provides DTO benefits.">
 use Spatie\LaravelData\Data;
+// </SECTION>
 
+// <SECTION name="class_definition" intent="Define a DTO for SBP QR Code reversal request.">
+// <BELIEF_STATE "This DTO ensures the reversal request payload is strictly typed and complete, supporting clear communication for critical financial operations with the SBP API.">
 class QrcReversalRequestData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define the properties for the QR Code reversal request.">
+    // <BELIEF_STATE "The constructor includes the mandatory `TermNo` and `currency`. Optional identifiers like `qrcId`, `payrrn`, `trxId`, `trxDT`, `amount`, `messageID`, `notificationUrl`, and `ReturnRestAmount` provide flexibility for various reversal scenarios.">
     public function __construct(
         public string $TermNo,
         public ?string $qrcId = null,
@@ -19,4 +33,5 @@ class QrcReversalRequestData extends Data
         public ?bool $ReturnRestAmount = null,
         // extJsonParams not fully implemented as it's optional and dynamic
     ) {}
+    // </SECTION>
 }