refactor(core): enhance SDK structure and documentation

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

examples/06_sbp_b2c_payout.php

@@ -0,0 +1,46 @@
+<?php
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use Apoloz\AlfaBank\AlfaBank;
+use Apoloz\AlfaBank\Requests\B2C\CreateB2CPaymentRequest;
+use Apoloz\AlfaBank\Data\B2C\B2CPaymentRequestData;
+use Apoloz\AlfaBank\Data\B2C\B2CClientData;
+use Apoloz\AlfaBank\Data\B2C\B2CPaymentRecipientData;
+use Spatie\LaravelData\DataCollection;
+
+/**
+ * Example: B2C Payout via SBP (Phone Number).
+ */
+
+$baas = AlfaBank::baas(
+    certificatePath: 'path/to/cert.pem',
+    privateKeyPath: 'path/to/key.pem'
+);
+
+$payload = new B2CPaymentRequestData(
+    client: new B2CClientData(b2cClientId: 'your-uuid', partnerId: 123),
+    inn: '7700000000',
+    account: '40702810...',
+    total: 100.00,
+    signedBody: 'BASE64_SIGNATURE_HERE', // Signature of the payments data
+    payments: B2CPaymentRecipientData::collect([
+        [
+            'phone' => '79001112233',
+            'amount' => 100.00,
+            'nspkBankId' => '100000000001',
+            'sequence' => 'unique-payout-id-1'
+        ]
+    ], DataCollection::class)
+);
+
+$baas->login('client-id', 'client-secret');
+$response = $baas->send(new CreateB2CPaymentRequest($payload));
+
+if ($response->successful()) {
+    $data = $response->dto(); // B2CPaymentResponseData
+    echo "Payout request sent. Status: {$data->status}\n";
+} else {
+    echo "Error: " . $response->body() . "\n";
+}
+