Structure init

.gitignore

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+.idea
+lib_oauthserver/vendor

com_oauthserver/administrator/services/provider.php

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+<?php
+
+use Joomla\DI\ServiceProviderInterface;
+
+\defined('_JEXEC') or die;
+
+return new class implements ServiceProviderInterface {
+
+    public function register(\Joomla\DI\Container $container)
+    {
+        // TODO: Implement register() method.
+    }
+};

com_oauthserver/administrator/src/Extension/Component.php

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+<?php
+
+namespace Webmasterskaya\Component\OauthServer\Administrator\Extension;
+
+use Joomla\CMS\Association\AssociationServiceInterface;
+use Joomla\CMS\Association\AssociationServiceTrait;
+use Joomla\CMS\Component\Router\RouterServiceInterface;
+use Joomla\CMS\Component\Router\RouterServiceTrait;
+use Joomla\CMS\Extension\BootableExtensionInterface;
+use Joomla\CMS\Extension\MVCComponent;
+use Joomla\CMS\HTML\HTMLRegistryAwareTrait;
+use Psr\Container\ContainerInterface;
+
+\defined('JPATH_PLATFORM') or die;
+
+class Component extends MVCComponent implements
+    BootableExtensionInterface, AssociationServiceInterface, RouterServiceInterface
+{
+    use AssociationServiceTrait;
+    use HTMLRegistryAwareTrait;
+    use RouterServiceTrait;
+
+    /**
+     * Booting the extension. This is the function to set up the environment of the extension like
+     * registering new class loaders, etc.
+     *
+     *
+     * @param \Psr\Container\ContainerInterface $container The container
+     *
+     * @throws \Exception
+     * @since 1.0.0
+     */
+    public function boot(ContainerInterface $container): void
+    {
+    }
+}

lib_oauthserver/composer.json

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+{
+  "name": "webmaserskaya/lib_oauthserver",
+  "type": "library",
+  "license": "MIT",
+  "autoload": {
+    "psr-4": {
+      "Webmaserskaya\\Joomla\\OauthServer\\": "src/"
+    }
+  },
+  "authors": [
+    {