fix(vip): render points exchange description

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/widget-system/vip-modal-copy-fields.test.cjs

@@ -224,7 +224,8 @@ test('积分兑换说明按 post 级 HTML 放行并原样渲染', () => {
   assert.match(schemaPhp, /'key' => 'pay_vip_points_exchange_desc', 'label' => '兑换说明', 'type' => 'textarea', 'sanitize_type' => 'html'/);
   const vipSettings = slice(paymentRuntime, 'public static function get_payment_vip_settings', 'public static function get_payment_revenue_settings');
   assert.match(vipSettings, /'desc'\s+=> wp_kses_post\(\(string\) \(\$settings\['pay_vip_points_exchange_desc'\]/);
-  // 弹窗渲染端不再 esc_html 剥标签。
-  assert.match(modalSource, /<div class="muted-box muted-2-color padding-10 em09 mt20">' \. wp_kses_post\(\$desc_text\)/);
+  // 弹窗从同一份 VIP 设置上下文读取说明，不经 catalog 投影遗漏；说明容器保留参考主题的 HTML 与定位类。
+  assert.match(modalSource, /\$desc_text = trim\(\(string\) \(\$vip\['points_exchange'\]\['desc'\] \?\? ''\)\);/);
+  assert.match(modalSource, /<div class="muted-box muted-2-color padding-10 em09 mt20 aksrt-vip-points-desc">' \. wp_kses_post\(\$desc_text\)/);
   assert.doesNotMatch(modalSource, /esc_html\(\$desc_text\)/);
 });