ver. 0.294: Remove all 12 legacy autoload/shop/ classes (~2363 lines)

Complete Domain-Driven Architecture migration:
- Phase 1-4: Transport, ProductSet, Coupon, Shop, Search, Basket,
  ProductCustomField, Category, ProductAttribute, Promotion
- Phase 5: Order (~562 lines) + Product (~952 lines)
- ~20 Product methods migrated to ProductRepository
- Apilo sync migrated to OrderAdminService
- Production hotfixes: stale Redis cache (prices 0.00), unqualified
  Product:: refs in LayoutEngine, object->array template conversion
- AttributeRepository::getAttributeValueById() Redis cache added

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

templates/shop-product/products-top.php

@@ -6,7 +6,7 @@
     <div class="swiper-wrapper">
       <?
         foreach ( $this -> products as $product ):
-          if ( $product -> status ):
+          if ( $product['status'] ):
             echo \Shared\Tpl\Tpl::view( 'shop-product/product-mini', [
                 'product' => $product,
                 'class'   => 'item',