fix(layered-nav): Fix MetaRobotsPlugin calling getLayout() on invalid result type

Resolved an error where MetaRobotsPlugin was calling getLayout() on result objects
that don't implement this method. Added defensive checks to verify layout object
exists before attempting to access blocks.

Error fixed: "Call to undefined method Magento\Framework\Controller\Result\Forward\Interceptor::getLayout()"

Author: Amadeco

Plugin/MetaRobotsPlugin.php

@@ -80,18 +80,23 @@ private function isCustomEntityPage(): bool
         $controllerName = $this->request->getControllerName();
         return $moduleName === 'custom_entity' && $controllerName === 'set';
     }
-
+    
     /**
      * Check if filters are applied to the current page
      *
+     * @param ResultInterface $resultPage
      * @return bool
      */
     private function hasAppliedFilters($resultPage): bool
     {
-        $state = $resultPage->getLayout()->getBlock('set.layer.state');
+        $layout = $resultPage->getLayout();
+        if (!$layout) {
+            return false;
+        }
+        $state = $layout->getBlock('set.layer.state');
         if ($state && $state->getActiveFilters()) {
             return true;
         }
         return false;
     }
-}
+}