ver. 0.277: ShopProduct factory, Dashboard, Update migration, legacy cleanup, admin\App

- ShopProduct factory: full migration (~40 ProductRepository methods, ~30 controller actions)
- Dashboard: Domain+DI migration (DashboardRepository + DashboardController)
- Update: Domain+DI migration (UpdateRepository + UpdateController, template rewrite)
- Renamed admin\Site to admin\App, removed dead fallback routing
- Removed all legacy folders: admin/controls, admin/factory, admin/view
- Newsletter: switched from admin\factory\Articles to ArticleRepository
- 414 tests, 1335 assertions passing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

autoload/admin/Controllers/UpdateController.php

@@ -0,0 +1,49 @@
+<?php
+namespace admin\Controllers;
+
+use Domain\Update\UpdateRepository;
+
+class UpdateController
+{
+    private UpdateRepository $repository;
+
+    public function __construct( UpdateRepository $repository )
+    {
+        $this->repository = $repository;
+    }
+
+    public function main_view(): string
+    {
+        return \Tpl::view( 'update/main-view', [
+            'ver'     => \S::get_version(),
+            'new_ver' => \S::get_new_version(),
+        ] );
+    }
+
+    public function update(): void
+    {
+        $result = $this->repository->update();
+
+        if ( !$result['success'] ) {
+            \S::alert( 'W trakcie aktualizacji systemu wystąpił błąd. Proszę spróbować ponownie.' );
+        } else {
+            \S::set_message( 'Aktualizacja przebiegła pomyślnie.' );
+        }
+
+        header( 'Location: /admin/update/main_view/' );
+        exit;
+    }
+
+    public function updateAll(): void
+    {
+        $result = $this->repository->update();
+
+        $response = [
+            'status'  => !empty( $result['success'] ) && empty( $result['no_updates'] ),
+            'version' => number_format( (float) \S::get( 'version_current' ) + 0.001, 3, '.', '' ),
+        ];
+
+        echo json_encode( $response );
+        exit;
+    }
+}