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/_partial/product-attribute.php

@@ -10,7 +10,7 @@ if ( $attribute_details['type'] == 0 )
       <? foreach ( $this -> attribute['values'] as $value ):?>
         <div class="fradio">
           <input type="radio" id="<?= $this -> attribute['id'];?>-<?= $value['id'];?>" <? if ( $value['is_default'] ):?>checked="checked"<? endif;?> require="true" value="<?= $this -> attribute['id'];?>-<?= $value['id'];?>" name="<?= \Shared\Helpers\Helpers::seo( $attribute_details['language']['name'] );?>">
-          <label for="<?= $this -> attribute['id'];?>-<?= $value['id'];?>" order="<?= $this -> order;?>"><?= \shop\ProductAttribute::get_value_name( $value['id'], $lang_id );?></label>
+          <label for="<?= $this -> attribute['id'];?>-<?= $value['id'];?>" order="<?= $this -> order;?>"><?= ( new \Domain\Attribute\AttributeRepository( $GLOBALS['mdb'] ) )->getAttributeValueById( $value['id'], $lang_id );?></label>
         </div>
         <? if ( $value['is_default'] ):?>
           <script class="footer" type="text/javascript">