refactor(core): enhance SDK structure and documentation

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

src/Data/NominalAccounts/Identification/PayerData.php

@@ -1,11 +1,25 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for payer information within an unidentified transaction.
+// RESPONSIBILITY: To hold and type-safely represent the details of the party who initiated a transaction that needs identification.
+// INPUTS: Raw JSON object from the API response.
+// OUTPUTS: A structured object containing payer details.
+// LINKS: UnidentifiedTransactionData.php (uses this DTO)
+*/
 
 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 payer details.">
+// <BELIEF_STATE "This DTO provides a clear, type-safe contract for payer information, which is critical for identifying the origin of an unidentified transaction.">
 class PayerData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define the properties of a payer.">
+    // <BELIEF_STATE "The constructor includes various optional fields for identifying a payer, such as `inn`, `kpp`, `accountNumber`, `name`, and bank details (`bankAccount`, `bankBik`, `bankName`). All are optional as not all information may be available for an unidentified transaction.">
     public function __construct(
         public ?string $inn = null,
         public ?string $kpp = null,
@@ -15,4 +29,5 @@ class PayerData extends Data
         public ?string $bankBik = null,
         public ?string $bankName = null,
     ) {}
+    // </SECTION>
 }