Add InPost Pay integration to admin templates

- Created a new template for the cart rule form with custom label, switch, and choice widgets.
- Implemented the InPost Pay block in the order details template for displaying delivery method, APM, and VAT invoice request.
- Added legacy support for the order details template to maintain compatibility with older PrestaShop versions.

modules/inpostizi/src/BasketApp/AuthorizationProviderFactory.php

@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace izi\prestashop\BasketApp;
+
+use izi\prestashop\Http\Client\Factory\ClientFactoryInterface;
+use izi\prestashop\Http\Client\Factory\GuzzleClientFactory;
+use izi\prestashop\OAuth2\Authentication\ClientCredentialsInterface;
+use izi\prestashop\OAuth2\Authentication\ClientSecretPost;
+use izi\prestashop\OAuth2\AuthorizationProvider;
+use izi\prestashop\OAuth2\AuthorizationProviderFactoryInterface;
+use izi\prestashop\OAuth2\AuthorizationProviderInterface;
+use izi\prestashop\OAuth2\AuthorizationServerClient;
+use izi\prestashop\OAuth2\AuthorizationServerClientInterface;
+use izi\prestashop\OAuth2\Grant\ClientCredentialsGrant;
+use izi\prestashop\OAuth2\Token\AccessTokenRepositoryInterface;
+use izi\prestashop\OAuth2\UriCollectionInterface;
+use Psr\Http\Message\RequestFactoryInterface;
+use Psr\Http\Message\StreamFactoryInterface;
+
+final class AuthorizationProviderFactory implements AuthorizationProviderFactoryInterface
+{
+    /**
+     * @var RequestFactoryInterface
+     */
+    private $requestFactory;
+
+    /**
+     * @var StreamFactoryInterface
+     */
+    private $streamFactory;
+
+    /**
+     * @var ClientFactoryInterface
+     */
+    private $clientFactory;
+
+    public function __construct(RequestFactoryInterface $requestFactory, StreamFactoryInterface $streamFactory, ?ClientFactoryInterface $clientFactory = null)
+    {
+        $this->requestFactory = $requestFactory;
+        $this->streamFactory = $streamFactory;
+        $this->clientFactory = $clientFactory ?? new GuzzleClientFactory();
+    }
+
+    public function create(UriCollectionInterface $uriCollection, ClientCredentialsInterface $credentials, ?AccessTokenRepositoryInterface $tokenRepository = null): AuthorizationProviderInterface
+    {
+        $authSeverClient = $this->createAuthServerClient($uriCollection);
+
+        return new AuthorizationProvider(
+            $authSeverClient,
+            new ClientCredentialsGrant(),
+            $credentials,
+            $tokenRepository
+        );
+    }
+
+    private function createAuthServerClient(UriCollectionInterface $uriCollection): AuthorizationServerClientInterface
+    {
+        $httpClient = $this->clientFactory->create();
+
+        return new AuthorizationServerClient(
+            $httpClient,
+            $this->requestFactory,
+            $this->streamFactory,
+            $uriCollection,
+            new ClientSecretPost()
+        );
+    }
+}