ver. 0.295: Admin order product editing — add/remove/modify products, AJAX search, stock adjustment

- Order product CRUD in admin panel (add, delete, edit quantity/prices)
- AJAX product search endpoint for order edit form
- Automatic stock adjustment when editing order products
- Transport cost recalculation based on free delivery threshold
- Fix: promo price = 0 when equal to base price (no real promotion)
- Clean up stale temp/ build artifacts

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

autoload/admin/App.php

@@ -417,10 +417,15 @@ class App
       },
       'ShopOrder' => function() {
         global $mdb;
+        $productRepo = new \Domain\Product\ProductRepository( $mdb );
         return new \admin\Controllers\ShopOrderController(
           new \Domain\Order\OrderAdminService(
-            new \Domain\Order\OrderRepository( $mdb )
-          )
+            new \Domain\Order\OrderRepository( $mdb ),
+            $productRepo,
+            new \Domain\Settings\SettingsRepository( $mdb ),
+            new \Domain\Transport\TransportRepository( $mdb )
+          ),
+          $productRepo
         );
       },
       'Update' => function() {