refactor(core): enhance SDK structure and documentation

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

src/Data/Loyalty/LoyaltyAccountData.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Apoloz\AlfaBank\Data\Loyalty;
+
+use Spatie\LaravelData\Data;
+
+class LoyaltyAccountData extends Data
+{
+    public function __construct(
+        public string $type,
+        public string $number,
+    ) {}
+}

src/Data/Loyalty/LoyaltyFilterData.php

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+<?php
+
+namespace Apoloz\AlfaBank\Data\Loyalty;
+
+use Spatie\LaravelData\Data;
+
+class LoyaltyFilterData extends Data
+{
+    public function __construct(
+        public string $startDate,
+        public string $endDate,
+        public array $references = [],
+    ) {}
+}

src/Data/Loyalty/LoyaltyTransactionData.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Apoloz\AlfaBank\Data\Loyalty;
+
+use Spatie\LaravelData\Data;
+
+class LoyaltyTransactionData extends Data
+{
+    public function __construct(
+        public string $id,
+        public float $amount,
+        public string $date,
+        public ?string $description = null,
+    ) {}
+}