feat(widgets): partners/iframe/combo/text/user + forum plate widgets

Close major zibll widget-more and bbs plate gaps: partners marquee,
super embed, combo info cards, text title, user lists, and plate
list/info/moderator sidebars with batch3 CSS registration.

src/AKSRT/Widgets/WidgetForumPlateInfo.php

@@ -0,0 +1,94 @@
+<?php
+/**
+ * Current plate info mini-box (zibll zib_bbs_widget_ui_plate_info).
+ *
+ * @package AKSRT
+ */
+
+namespace AKSRT\Widgets;
+
+defined('ABSPATH') || exit;
+
+class WidgetForumPlateInfo extends \WP_Widget {
+
+	public function __construct() {
+		parent::__construct(
+			'aksrt_forum_plate_info',
+			esc_html__('论坛 - 当前版块信息', 'aksrt'),
+			[
+				'description' => esc_html__('在版块/帖子页侧栏显示当前 plate 信息。', 'aksrt'),
+				'classname'   => 'widget_aksrt_forum_plate_info',
+			]
+		);
+	}
+
+	public function widget($args, $instance): void {
+		$plate = $this->resolve_current_plate();
+		if (!$plate) {
+			return;
+		}
+
+		echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+
+		$id    = (int) $plate->ID;
+		$url   = get_permalink($id);
+		$thumb = get_the_post_thumbnail_url($id, 'medium');
+		$posts = (int) get_post_meta($id, '_aksrt_posts_count', true);
+		$reply = (int) get_post_meta($id, '_aksrt_reply_count', true);
+		$follow = (int) get_post_meta($id, '_aksrt_follow_count', true);
+		$desc  = $plate->post_excerpt !== '' ? $plate->post_excerpt : wp_trim_words(wp_strip_all_tags($plate->post_content), 30);
+
+		echo '<div class="aksrt-plate-info">';
+		if ($thumb) {
+			echo '<div class="aksrt-plate-info__cover" style="background-image:url(' . esc_url($thumb) . ')"></div>';
+		}
+		echo '<div class="aksrt-plate-info__body">';
+		echo '<a class="aksrt-plate-info__title" href="' . esc_url($url) . '">' . esc_html(get_the_title($plate)) . '</a>';
+		if ($desc !== '') {
+			echo '<div class="aksrt-plate-info__desc">' . esc_html($desc) . '</div>';
+		}
+		echo '<div class="aksrt-plate-info__stats">';
+		echo '<span><i class="fas fa-file-alt" aria-hidden="true"></i> ' . esc_html((string) $posts) . '</span>';
+		echo '<span><i class="fas fa-comment" aria-hidden="true"></i> ' . esc_html((string) $reply) . '</span>';
+		echo '<span><i class="fas fa-heart" aria-hidden="true"></i> ' . esc_html((string) $follow) . '</span>';
+		echo '</div></div></div>';
+
+		echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+	}
+
+	private function resolve_current_plate(): ?\WP_Post {
+		if (is_singular('aksrt_forum_plate')) {
+			$p = get_queried_object();
+			return $p instanceof \WP_Post ? $p : null;
+		}
+		if (is_singular('aksrt_forum_topic')) {
+			$topic_id = (int) get_queried_object_id();
+			$plate_id = (int) get_post_meta($topic_id, '_aksrt_plate_id', true);
+			if ($plate_id <= 0) {
+				// Fallback: first linked board term → plate meta, or parent.
+				$boards = get_the_terms($topic_id, 'aksrt_forum_board');
+				if (!is_wp_error($boards) && !empty($boards[0])) {
+					$linked = (int) get_term_meta((int) $boards[0]->term_id, '_aksrt_plate_id', true);
+					if ($linked > 0) {
+						$plate_id = $linked;
+					}
+				}
+			}
+			if ($plate_id > 0) {
+				$p = get_post($plate_id);
+				if ($p instanceof \WP_Post && $p->post_type === 'aksrt_forum_plate') {
+					return $p;
+				}
+			}
+		}
+		return null;
+	}
+
+	public function form($instance): void {
+		echo '<p class="description">' . esc_html__('无需配置。仅在版块页或帖子页显示对应版块信息。', 'aksrt') . '</p>';
+	}
+
+	public function update($new_instance, $old_instance): array {
+		return [];
+	}
+}