refactor(core): enhance SDK structure and documentation

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

src/Data/NominalAccounts/Beneficiaries/CreateBeneficiaryRequestData.php

@@ -1,14 +1,28 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for the request payload when creating a new beneficiary.
+// RESPONSIBILITY: To hold and validate all necessary information for beneficiary registration, including personal details, addresses, and signatures.
+// INPUTS: Raw data array for beneficiary details.
+// OUTPUTS: A structured, type-safe object for the `CreateBeneficiaryRequest` payload.
+// LINKS: Requests/NominalAccounts/Beneficiaries/CreateBeneficiaryRequest.php
+*/
 
 namespace Apoloz\AlfaBank\Data\NominalAccounts\Beneficiaries;
 
+// <SECTION name="module_imports" intent="Import necessary DTOs and Spatie Laravel Data components for complex nested data structures.">
+// <BELIEF_STATE "This DTO has several nested DTOs and collections (`AddressData`, `DigestSignatureData`, `DocumentData`, `PersonalInformationData`). `DataCollectionOf` and `Data` ensure that these are all correctly typed and mapped.">
 use Apoloz\AlfaBank\Data\NominalAccounts\Payouts\DigestSignatureData;
 use Spatie\LaravelData\Attributes\DataCollectionOf;
 use Spatie\LaravelData\Data;
 use Spatie\LaravelData\DataCollection;
+// </SECTION>
 
+// <SECTION name="class_definition" intent="Define a DTO for creating a new beneficiary.">
+// <BELIEF_STATE "This DTO serves as a robust contract for the complex payload required to create a beneficiary. Type-safety here prevents malformed requests from even being constructed.">
 class CreateBeneficiaryRequestData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define all properties for the beneficiary creation request, including nested DTOs and collections.">
+    // <BELIEF_STATE "The constructor meticulously lists all possible fields, making it clear what data is expected. Mandatory fields are non-nullable, while optional ones are nullable. Collections like `addresses` and `digestSignatures` are type-hinted with `DataCollection` and use `#[DataCollectionOf]` to ensure each item is itself a DTO.">
     public function __construct(
         public string $type,
         public string $countryOfTaxResidence,
@@ -31,4 +45,5 @@ class CreateBeneficiaryRequestData extends Data
         #[DataCollectionOf(DocumentData::class)]
         public ?DataCollection $documents = null,
     ) {}
+    // </SECTION>
 }