ver. 0.283: Legacy class cleanup — S, Html, Email, Image, Log, Mobile_Detect → Shared namespace

- Migrate class.S → Shared\Helpers\Helpers (140+ files), remove 12 unused methods
- Migrate class.Html → Shared\Html\Html
- Migrate class.Email → Shared\Email\Email
- Migrate class.Image → Shared\Image\ImageManipulator
- Delete class.Log (unused), class.Mobile_Detect (outdated UA detection)
- Remove grid library loading from admin (index.php, ajax.php)
- Replace gridEdit usage in 10 admin templates with grid-edit-replacement.php
- Fix grid-edit-replacement.php AJAX to send values as JSON (grid.js compat)
- Remove mobile layout conditionals (m_html/m_css/m_js) from Site + LayoutsRepository
- Remove \Log::save_log() calls from OrderAdminService, ShopOrder, Order

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

autoload/front/controls/class.ShopProduct.php

@@ -9,7 +9,7 @@ class ShopProduct
     global $lang_id;
 
     $output = '';
-    $products_ids = \front\factory\ShopCategory::products_id( \S::get( 'category_id' ), \front\factory\ShopCategory::get_category_sort( (int)\S::get( 'category_id' ) ), $lang_id, 8, \S::get( 'offset' ) );
+    $products_ids = \front\factory\ShopCategory::products_id( \Shared\Helpers\Helpers::get( 'category_id' ), \front\factory\ShopCategory::get_category_sort( (int)\Shared\Helpers\Helpers::get( 'category_id' ) ), $lang_id, 8, \Shared\Helpers\Helpers::get( 'offset' ) );
 
     if ( is_array( $products_ids ) ): foreach ( $products_ids as $product_id ):
       $output .= \Tpl::view('shop-product/product-mini', [
@@ -26,7 +26,7 @@ class ShopProduct
   {
     global $lang_id;
 
-    $values = json_decode( \S::get( 'values' ), true );
+    $values = json_decode( \Shared\Helpers\Helpers::get( 'values' ), true );
 
     foreach( $values as $key => $val )
     {
@@ -46,14 +46,14 @@ class ShopProduct
 
     $combination = '';
 
-    $selected_values = \S::get( 'selected_values' );
+    $selected_values = \Shared\Helpers\Helpers::get( 'selected_values' );
     foreach ( $selected_values as $value ) {
       $combination .= $value;
       if ( $value != end( $selected_values ) )
         $combination .= '|';
     }
 
-    $product_id = \S::get( 'product_id' );
+    $product_id = \Shared\Helpers\Helpers::get( 'product_id' );
     $product = Product::getFromCache( $product_id, $lang_id );
     $product_data = $product -> getProductDataBySelectedAttributes( $combination );