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>

tests/admin/charge-cards-dependency.test.cjs

@@ -23,7 +23,20 @@ const test = require('node:test');
 const vm = require('node:vm');
 
 const root = path.resolve(__dirname, '..', '..');
-const page = fs.readFileSync(path.join(root, 'src/Admin/Native/PayChargeCards.php'), 'utf8');
+
+// PayChargeCards 已按关注点拆成 flat sibling traits。契约按方法名切片，依赖「类体 + trait 体」
+// 在同一文本里保持原有相邻顺序，因此这里按固定顺序把壳类与三个 trait 文件拼接后再切片：
+//   壳类（render_charge_cards_page / 动作 / 数据辅助）
+//   → List（render_list / list_query_args）
+//   → Assets（print_assets 的 <style>/<script>）
+//   → Forms（render_add_form / render_export_form / 依赖显隐助手 / button_set / spinner / page_notice）
+const read = (rel) => fs.readFileSync(path.join(root, rel), 'utf8');
+const page = [
+  'src/Admin/Native/PayChargeCards.php',
+  'src/Admin/Native/PayChargeCardsList.php',
+  'src/Admin/Native/PayChargeCardsAssets.php',
+  'src/Admin/Native/PayChargeCardsForms.php',
+].map(read).join('\n');
 
 /** 依赖条目：checked / unchecked 不写 val，与 wp_json_encode 的输出保持一致。 */
 const DEP_ENTRY = /\['key'\s*=>\s*'([^']*)'\s*,\s*'op'\s*=>\s*'([^']*)'(?:\s*,\s*'val'\s*=>\s*'([^']*)')?\]/g;