fix: ensure image_meta is always an array in Featured_News_Block_Controller

wp_get_attachment_metadata() can return false when no metadata exists,
which would cause errors downstream. Added type guard to default to
an empty array.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: knice

src/Components/Featured_News_Block_Controller.php

@@ -30,6 +30,7 @@ protected function prepare_posts_for_display( array $posts = [], bool $is_auto_q
 			}
 			$image_id   = get_post_thumbnail_id( $post_id );
 			$image_meta = $image_id > 0 ? wp_get_attachment_metadata( $image_id ) : [];
+			$image_meta = is_array( $image_meta ) ? $image_meta : [];
 			$image_url  = wp_get_attachment_url( $image_id );
 			$taxonomy   =  $this->query_loop[ Query_Loop::QUERY_LOOP ][ Taxonomies::TAXONOMIES ] ?: 'category';
             $category   = $this->get_primary_term( $post_id, $taxonomy );