refactor(core): enhance SDK structure and documentation

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

src/Data/DebitCards/DebitCardApplicationData.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Apoloz\AlfaBank\Data\DebitCards;
+
+use Spatie\LaravelData\Data;
+
+class DebitCardApplicationData extends Data
+{
+    public function __construct(
+        public string $embossingName,
+        public string $firstName,
+        public string $lastName,
+        public string $middleName,
+        public string $mobilePhone,
+        public string $passportBirthDate,
+        public string $sex, // 'f' or 'm'
+        public bool $sopdConfirmed,
+        public ?string $email = null,
+        public ?string $previousFormId = null,
+    ) {}
+}