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- Delete class.Log (unused), class.Mobile_Detect (outdated UA detection)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>

admin/templates/layouts/layout-edit.php

@@ -241,7 +241,7 @@ ob_start();
     </ul>
     <div class="resp-tabs-container layout-tabs">
       <div>
-        <?= \Html::input(
+        <?= \Shared\Html\Html::input(
                     array(
                       'label'   => 'Nazwa',
                       'name'    => 'name',
@@ -249,14 +249,14 @@ ob_start();
                       'value'   => $this -> layout['name']
                     )
                 );?>
-        <?= \Html::input_switch(
+        <?= \Shared\Html\Html::input_switch(
                     array(
                       'label'   => 'Szablon domy&#347;lny',
                       'name'    => 'status',
                       'checked' => $this -> layout['status'] == 1 ? true : false
                     )
                 );?>
-        <?= \Html::input_switch(
+        <?= \Shared\Html\Html::input_switch(
                     array(
                       'label'   => 'Szablon domy&#347;lny (kategorie)',
                       'name'    => 'categories_default',
@@ -329,26 +329,13 @@ ob_start();
 <?
 $out = ob_get_clean();
 
-$grid = new \gridEdit;
-$grid -> id               = 'layout-edit';
-$grid -> gdb_opt          = $gdb;
-$grid -> include_plugins  = true;
-$grid -> title            = 'Edycja szablonu';
-$grid -> fields           = [
-                              [
-                                'db' => 'id',
-                                'type' => 'hidden',
-                                'value' => $this -> layout['id']
-                              ]
-                            ];
-$grid -> actions          = [
-                              'save' => [ 'url' => '/admin/layouts/save/', 'back_url' => '/admin/layouts/list/' ],
-                              'cancel' => [ 'url' => '/admin/layouts/list/' ]
-                            ];
-$grid -> external_code    = $out;
-$grid -> persist_edit     = true;
-$grid -> id_param         = 'id';
-
-echo $grid -> draw();
+$gridId = 'layout-edit';
+$gridTitle = 'Edycja szablonu';
+$gridSaveUrl = '/admin/layouts/save/';
+$gridBackUrl = '/admin/layouts/list/';
+$gridHidden = [['name' => 'id', 'value' => $this->layout['id']]];
+$gridContent = $out;
+$gridPersist = true;
+include __DIR__ . '/../components/grid-edit-replacement.php';
 ?>