refactor(core): enhance SDK structure and documentation

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

src/Data/NominalAccounts/Deals/DealCollectionData.php

@@ -1,17 +1,32 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for a paginated collection of DealData objects.
+// RESPONSIBILITY: To provide a structured, type-safe container for lists of deals returned by the API, including pagination metadata.
+// INPUTS: Raw JSON array from the API response.
+// OUTPUTS: An object containing pagination details and a collection of `DealData`.
+// LINKS: Requests/NominalAccounts/Deals/GetDealsRequest.php
+*/
 
 namespace Apoloz\AlfaBank\Data\NominalAccounts\Deals;
 
+// <SECTION name="module_imports" intent="Import necessary DTOs and Spatie Laravel Data components.">
+// <BELIEF_STATE "This collection DTO relies on `PaginationData` for metadata and `DealData` for the individual items. `DataCollection` and `DataCollectionOf` are Spatie Data features for handling typed arrays of DTOs.">
 use Apoloz\AlfaBank\Data\PaginationData;
 use Spatie\LaravelData\Attributes\DataCollectionOf;
 use Spatie\LaravelData\Data;
 use Spatie\LaravelData\DataCollection;
+// </SECTION>
 
+// <SECTION name="class_definition" intent="Define a DTO for a collection of deals.">
+// <BELIEF_STATE "A dedicated DTO for a collection ensures that the structure of paginated lists is consistent and type-safe, providing a reliable contract for consumers to manage deals.">
 class DealCollectionData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define the properties of the deal collection.">
+    // <BELIEF_STATE "The collection structure includes pagination metadata (`pagination`) and the actual list of deals (`deals`). The `#[DataCollectionOf(DealData::class)]` attribute is crucial for ensuring that each item in the `deals` array is automatically cast to a `DealData` DTO.">
     public function __construct(
         public PaginationData $pagination,
         #[DataCollectionOf(DealData::class)]
         public DataCollection $deals
     ) {}
+    // </SECTION>
 }