feat(admin): unify native admin pages on a shared modern UI

Add NativeUi helper + native-ui.css (tokens mirror the SPA Naive UI theme)
and move the pay center, orders, products, coupons, charge cards, income,
withdrawals, tickets, invite codes, VIP, verify, messages and report/ban
pages onto shared header, stat cards, cards, filters, badges and empty
states. Remove inline styles and dead helpers; split PayChargeCards into
sibling traits to stay under the file size limit.

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

src/Admin/Native/UsersMenus.php

@@ -32,6 +32,7 @@ class UsersMenus {
             return;
         }
 
+        NativeUi::boot();
         add_action('admin_menu', [$this, 'register_menus']);
         add_action('admin_notices', [$this, 'pending_notices']);
         add_action('admin_post_aksrt_users_send_message', [$this, 'handle_send_message']);
@@ -44,6 +45,7 @@ class UsersMenus {
         add_action('admin_post_aksrt_ticket_update', [$this, 'handle_ticket_update']);
         add_action('admin_enqueue_scripts', [$this, 'enqueue_ticket_assets']);
         add_action('admin_enqueue_scripts', [$this, 'enqueue_message_assets']);
+        add_action('admin_enqueue_scripts', [$this, 'enqueue_invite_assets']);
     }
 
     public function register_menus(): void {
@@ -223,14 +225,22 @@ class UsersMenus {
 
     public function render_ban_page(): void {
         $this->ensure_cap();
-        echo '<div class="wrap"><h2>' . esc_html__('用户禁封申诉及用户举报管理', 'aksrt') . '</h2>';
+        NativeUi::page_open('aksrt-native-ban');
+        NativeUi::header(
+            __('用户禁封申诉及用户举报管理', 'aksrt'),
+            __('处理用户举报与禁封申诉工单。禁封 / 解封操作在前台封禁弹窗完成。', 'aksrt'),
+            'dashicons-shield'
+        );
         $this->flash();
 
         // 与参考主题一致：后台仅承载「申诉&举报」工单处理；禁封/解封操作
         // 全部在前台完成（用户主页封面 / 评论区 / 文章作者栏三点菜单 →
         // 封禁弹窗，REST /user-ban/modal + /user-ban/set）。
+        // render_tickets_tab() 自带筛选控件 + 表格 + 分页，直接交给 .aksrt-native
+        // 作用域下的共享样式（.subsubsub / .widefat / .button / .tablenav）接管。
         $this->render_tickets_tab();
-        echo '</div>';
+
+        NativeUi::page_close();
     }