feat(topics): restore topic taxonomy workflow

src/WidgetSystem/PostQuery.php

@@ -53,6 +53,14 @@ final class PostQuery {
 		if ($tags) {
 			$args['tag__in'] = $tags;
 		}
+		$topics = RendererHelpers::ids((string) ($config['topics'] ?? ''));
+		if ($topics) {
+			$args['tax_query'] = [[
+				'taxonomy' => 'topics',
+				'field' => 'term_id',
+				'terms' => $topics,
+			]];
+		}
 
 		$days = max(0, (int) ($config['limit_day'] ?? 0));
 		if ($days > 0) {