feat: 收口 1:1 剩余欠账（论坛壳/圈子/501/私信默认/资源死码）

- 论坛 board/topic/plate/tag/plate-cat 接入 content-wrap/content-layout 主站流壳
- 公共主页 plate 圈子 tab 接关注/管理版块真实数据并计数
- forum-topic 渲染封面/付费扩展位 meta（§7.3）
- 后台删除消息/背景图/评论图 REST 从 501 补齐为真实实现
- 私信 private_s 缺省 true（完整 1:1，不再兼容默认关）
- 清理 aksrt_get_resource_meta 不可达旧实现；挂载 AKSRT_AI 配置门控实例
- 登录 modal 启用 colorful-header；订单页粉边 focus 软化；侧栏次级入口视觉弱化

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

templates/parts/user-home/panels-core.php

@@ -172,6 +172,50 @@ extract($args, EXTR_SKIP); // phpcs:ignore WordPress.PHP.DontExtract.extract_ext
 
 					<?php if (in_array('plate', $enabled_tabs, true)) : ?>
 					<div id="panel-plate" class="dashboard-panel<?php echo $active_tab === 'plate' ? ' is-active' : ''; ?>" role="tabpanel"<?php echo $active_tab !== 'plate' ? ' hidden' : ''; ?>>
-						<?php aksrt_render_profile_empty($svg_empty_post, __('暂无圈子内容', 'aksrt')); ?>
+						<?php
+						$plate_items = [];
+						if ($forum_instance) {
+							if (method_exists($forum_instance, 'get_user_followed_plates')) {
+								$plate_items = array_merge($plate_items, (array) $forum_instance->get_user_followed_plates((int) $user_id));
+							}
+							if (method_exists($forum_instance, 'get_user_managed_plates')) {
+								$managed = (array) $forum_instance->get_user_managed_plates((int) $user_id);
+								foreach (['owned', 'moderating'] as $bucket) {
+									foreach ((array) ($managed[$bucket] ?? []) as $plate) {
+										$plate_items[] = $plate;
+									}
+								}
+							}
+						}
+						// de-dupe by id
+						$seen = [];
+						$unique_plates = [];
+						foreach ($plate_items as $plate) {
+							$pid = (int) ($plate['id'] ?? 0);
+							if ($pid <= 0 || isset($seen[$pid])) {
+								continue;
+							}
+							$seen[$pid] = true;
+							$unique_plates[] = $plate;
+						}
+						if (!empty($unique_plates)) :
+							?>
+							<div class="uh-forum__plate-grid">
+								<?php foreach ($unique_plates as $plate) :
+									$purl = !empty($plate['url']) ? (string) $plate['url'] : get_permalink((int) ($plate['id'] ?? 0));
+									?>
+									<a class="uh-forum__plate-card" href="<?php echo esc_url((string) $purl); ?>">
+										<div class="uh-forum__plate-name"><?php echo esc_html((string) ($plate['name'] ?? '')); ?></div>
+										<div class="uh-forum__plate-stats">
+											<span><?php printf(esc_html__('%d 帖子', 'aksrt'), (int) ($plate['topic_count'] ?? $plate['post_count'] ?? 0)); ?></span>
+											<span><?php printf(esc_html__('%d 关注', 'aksrt'), (int) ($plate['follow_count'] ?? 0)); ?></span>
+										</div>
+									</a>
+								<?php endforeach; ?>
+							</div>
+						<?php else :
+							aksrt_render_profile_empty($svg_empty_post, __('暂无圈子内容', 'aksrt'));
+						endif;
+						?>
 					</div>
 					<?php endif; ?>