refactor(core): enhance SDK structure and documentation

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

src/Data/Statement/TransactionCollectionData.php

@@ -0,0 +1,32 @@
+<?php
+/*
+// MODULE_CONTRACT: Defines the data structure for a paginated collection of TransactionData objects.
+// RESPONSIBILITY: To provide a structured, type-safe container for lists of account transactions 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 `TransactionData`.
+// LINKS: Requests/Statement/GetTransactionsRequest.php
+*/
+
+namespace Apoloz\AlfaBank\Data\Statement;
+
+// <SECTION name="module_imports" intent="Import necessary DTOs and Spatie Laravel Data components.">
+// <BELIEF_STATE "This collection DTO relies on `PaginationData` for metadata and `TransactionData` 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 account transactions.">
+// <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 financial statements.">
+class TransactionCollectionData extends Data
+{
+    // <SECTION name="constructor_properties" intent="Define the properties of the transaction collection.">
+    // <BELIEF_STATE "The collection structure includes pagination metadata (`pagination`) and the actual list of transactions (`transactions`). The `#[DataCollectionOf(TransactionData::class)]` attribute is crucial for ensuring that each item in the `transactions` array is automatically cast to a `TransactionData` DTO.">
+    public function __construct(
+        public PaginationData $pagination,
+        #[DataCollectionOf(TransactionData::class)]
+        public DataCollection $transactions
+    ) {}
+    // </SECTION>
+}