fix(tests): repair stale pagination/lazyload contracts and ban defaults script

- pay-pages-pagination asserts the $parent_file base URL added in b74381cf
- Drop native loading="lazy" from message avatars and medal presets per
  the lazyload contract
- verify-ban-settings-defaults requires SchemaUsersTicket and new deps

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

tests/admin/pay-pages-pagination.test.cjs

@@ -172,7 +172,9 @@ test('共享助手自身：页码夹取、四按钮标记与显式基准 URL', (
   assert.match(helper, /\$current_page = min\(max\(1, \$current_page\), \$total_pages\);/);
 
   // 基准 URL 显式拼装：add_query_arg 必带第三个参数（两参数写法会退回 REQUEST_URI）。
-  assert.match(helper, /\$base\s*=\s*add_query_arg\(array_merge\(\['page' => \$page_slug\], \$query_args\), admin_url\('admin\.php'\)\);/);
+  // 宿主菜单文件可传入（users.php 子菜单保持菜单高亮），默认 admin.php。
+  assert.match(helper, /string \$parent_file = 'admin\.php'/);
+  assert.match(helper, /\$base\s*=\s*add_query_arg\(array_merge\(\['page' => \$page_slug\], \$query_args\), admin_url\(\$parent_file\)\);/);
   assert.match(helper, /\$page_url = static function \(int \$page\) use \(\$base\): string \{/);
   assert.match(helper, /return add_query_arg\('paged', \$page, \$base\);/);
   assert.doesNotMatch(helper, /add_query_arg\('paged',\s*'[^']*'\s*\)/);