fix(widgets): restore article table of contents behavior and styles

src/WidgetSystem/FrontendRenderer.php

@@ -23,6 +23,12 @@ final class FrontendRenderer {
 		}
 
 		AssetManager::enqueue_for($definition);
+		if ($definition->slug() === 'posts_toc') {
+			// The TOC renderer owns the reference widget-container wrapper and
+			// displays its title inside the generated directory, not above it.
+			echo $content; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+			return;
+		}
 		if (in_array($definition->slug(), ['user_card', 'author_card', 'tab_posts', 'posts'], true)) {
 			self::render_reference_widget($definition, $instance, $widget, $content);
 			return;
@@ -31,7 +37,7 @@ final class FrontendRenderer {
 			'post_pay', 'oneline_posts', 'hot_posts',
 			'slider', 'slider_media_combo', 'icon_cards', 'icon_cover_cards',
 			'buttons', 'notice', 'term_cards', 'term_aggregation', 'media_cards',
-			'combo_info', 'partners', 'recent_comments', 'posts_toc',
+			'combo_info', 'partners', 'recent_comments',
 		], true)) {
 			echo (string) ($args['before_widget'] ?? '');
 			if ($definition->slug() !== 'post_pay') echo self::reference_title($instance);

src/WidgetSystem/WidgetCatalog.php

@@ -72,7 +72,9 @@ final class WidgetCatalog {
 					'common'      => [
 						'title' => !in_array($slug, ['post_pay', 'layout_gap', 'slider', 'slider_media_combo', 'buttons', 'posts_toc'], true),
 						'affix' => ($size === 'sidebar' && $slug !== 'posts_toc') || in_array($slug, ['buttons', 'notice', 'posts'], true),
-						'animation' => !in_array($slug, ['buttons', 'term_cards', 'term_aggregation', 'media_cards', 'combo_info', 'slider_media_combo'], true),
+						'visibility' => $slug !== 'posts_toc',
+						'layout' => $slug !== 'posts_toc',
+						'animation' => !in_array($slug, ['buttons', 'term_cards', 'term_aggregation', 'media_cards', 'combo_info', 'slider_media_combo', 'posts_toc'], true),
 					],
 					'fields'      => WidgetSchemas::for($slug),
 					'assets'      => self::assets($slug),