ver. 0.282: Banners frontend migration, Cache cleanup, Shared\Cache namespace

- Banners frontend: front\Views\Banners (new), BannerRepository +2 frontend methods,
  front\view\Site przepięty, usunięte front\factory\Banners i front\view\Banners
- Cache cleanup: eliminacja legacy class.Cache.php (file-based cache),
  13 metod front\factory przepiętych z \Cache::fetch/store na CacheHandler
- Shared\Cache namespace: CacheHandler i RedisConnection przeniesione do Shared\Cache\,
  60 odwołań CacheHandler i 12 odwołań RedisConnection przepiętych,
  usunięte backward-compat wrappery class.CacheHandler.php i class.RedisConnection.php
- Naprawione rozbieżności kluczy cache (random_products, category_name)

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

autoload/front/factory/class.ShopPaymentMethod.php

@@ -17,15 +17,16 @@ class ShopPaymentMethod
   public static function payment_methods_by_transport( $transport_method_id )
   {
     $transport_method_id = (int)$transport_method_id;
+    $cacheHandler = new \Shared\Cache\CacheHandler();
     $cacheKey = 'payment_methods_by_transport' . $transport_method_id;
-    $payments = \Cache::fetch( $cacheKey );
+    $objectData = $cacheHandler->get( $cacheKey );
 
-    if ( $payments !== false && is_array( $payments ) ) {
-      return $payments;
+    if ( $objectData ) {
+      return unserialize( $objectData );
     }
 
     $payments = self::repo()->forTransport( $transport_method_id );
-    \Cache::store( $cacheKey, $payments );
+    $cacheHandler->set( $cacheKey, $payments );
 
     return $payments;
   }
@@ -38,12 +39,18 @@ class ShopPaymentMethod
   public static function payment_method( $payment_method_id )
   {
     $payment_method_id = (int)$payment_method_id;
+    $cacheHandler = new \Shared\Cache\CacheHandler();
     $cacheKey = 'payment_method' . $payment_method_id;
-    $payment_method = \Cache::fetch( $cacheKey );
+    $objectData = $cacheHandler->get( $cacheKey );
 
-    if ( $payment_method === false ) {
+    if ( !$objectData )
+    {
       $payment_method = self::repo()->findActiveById( $payment_method_id );
-      \Cache::store( $cacheKey, $payment_method );
+      $cacheHandler->set( $cacheKey, $payment_method );
+    }
+    else
+    {
+      return unserialize( $objectData );
     }
 
     return $payment_method;
@@ -51,15 +58,16 @@ class ShopPaymentMethod
 
   public static function payment_methods()
   {
+    $cacheHandler = new \Shared\Cache\CacheHandler();
     $cacheKey = 'payment_methods';
-    $payment_methods = \Cache::fetch( $cacheKey );
+    $objectData = $cacheHandler->get( $cacheKey );
 
-    if ( $payment_methods !== false && is_array( $payment_methods ) ) {
-      return $payment_methods;
+    if ( $objectData ) {
+      return unserialize( $objectData );
     }
 
     $payment_methods = self::repo()->allActive();
-    \Cache::store( $cacheKey, $payment_methods );
+    $cacheHandler->set( $cacheKey, $payment_methods );
 
     return $payment_methods;
   }