refactor(core): enhance SDK structure and documentation

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

src/Requests/NominalAccounts/Deals/Steps/GetStepRequest.php

@@ -1,28 +1,51 @@
 <?php
+/*
+// MODULE_CONTRACT: Represents the API call to retrieve a single step for a specific deal.
+// RESPONSIBILITY: To define the GET request for fetching details of a particular deal step.
+// INPUTS: Deal ID, step ID.
+// OUTPUTS: StepData (DTO).
+*/
 
 namespace Apoloz\AlfaBank\Requests\NominalAccounts\Deals\Steps;
 
+// <SECTION name="module_imports" intent="Import DTO and Saloon components.">
+// <BELIEF_STATE "This request requires the `StepData` DTO for its response.">
 use Apoloz\AlfaBank\Data\NominalAccounts\Deals\Steps\StepData;
 use Saloon\Enums\Method;
 use Saloon\Http\Request;
 use Saloon\Http\Response;
+// </SECTION>
 
+// <SECTION name="class_definition" intent="Define the request to get a single deal step.">
+// <BELIEF_STATE "A dedicated class provides a clean and reusable way to fetch details of a specific step within a deal.">
 class GetStepRequest extends Request
 {
+    // <SECTION name="http_method" intent="Declare the HTTP verb.">
+    // <BELIEF_STATE "Retrieving a specific resource by its ID is a read-only operation, making GET the correct RESTful verb.">
     protected Method $method = Method::GET;
+    // </SECTION>
 
+    // <SECTION name="constructor" intent="Inject the deal ID and step ID.">
+    // <BELIEF_STATE "Both `dealId` and `stepId` are mandatory path parameters to identify the specific step being queried.">
     public function __construct(
         protected string $dealId,
         protected string $stepId
     ) {}
+    // </SECTION>
 
+    // <SECTION name="endpoint_resolver" intent="Construct the request URI for a specific deal step.">
+    // <BELIEF_STATE "The endpoint is dynamically constructed with both `dealId` and `stepId` to target the precise step resource.">
     public function resolveEndpoint(): string
     {
         return "/api/na/jp/v1/deals/{$this->dealId}/steps/{$this->stepId}";
     }
+    // </SECTION>
 
+    // <SECTION name="response_caster" intent="Map the JSON response to a StepData DTO.">
+    // <BELIEF_STATE "Automated casting to a `StepData` DTO ensures a type-safe and comprehensive object representation of the deal step.">
     public function createDtoFromResponse(Response $response): StepData
     {
         return StepData::from($response->json());
     }
+    // </SECTION>
 }