refactor(core): enhance SDK structure and documentation

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

src/Data/NominalAccounts/Deals/ValidateDealResponseData.php

@@ -1,14 +1,29 @@
 <?php
+/*
+// MODULE_CONTRACT: Defines the data structure for the response of a deal validation request.
+// RESPONSIBILITY: To hold and type-safely represent the outcome of checking a deal's validity.
+// INPUTS: Raw JSON object from the API response.
+// OUTPUTS: A structured object containing deal validation status.
+// LINKS: Requests/NominalAccounts/Deals/ValidateDealRequest.php
+*/
 
 namespace Apoloz\AlfaBank\Data\NominalAccounts\Deals;
 
+// <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 deal validation.">
+// <BELIEF_STATE "This DTO provides a clear, type-safe contract for understanding whether a deal is considered valid for further operations, including an optional description for validation failures.">
 class ValidateDealResponseData extends Data
 {
+    // <SECTION name="constructor_properties" intent="Define the properties of a deal validation response.">
+    // <BELIEF_STATE "The constructor includes the `dealId` for context, a boolean `isValid` to indicate the validation outcome, and an optional `description` to provide details for invalid deals.">
     public function __construct(
         public string $dealId,
         public bool $isValid,
-        public ?array $description = null,
+        public ?array $description = null, // Can be a string or array of error messages
     ) {}
+    // </SECTION>
 }