feat(payment): 支付&付费菜单按参考主题重构并新增提现策略页

- 子菜单重组为知识付费/余额充值/VIP会员/创作分成/推广返佣/收款接口/提现策略
- 收款接口页 1:1 复刻 Zibll 双下拉结构，仅保留支付宝/微信/PayPal/Stripe/易支付
- 订单前缀/流水号前缀/提现单号前缀配置保留并移入收款接口页
- 知识付费/推广返佣按参考主题全字段复刻，余额充值并入充值卡配置
- 新增 tabbed/between_number/page_select 表单控件及后端 pages 搜索源
- 清理旧 SPA 组件、无消费者 REST 端点与废弃配置键（不写双路兼容）
- 更新存量契约测试至新 schema 文件

assets/admin/src/router/component-loaders/index.js

@@ -1,13 +1,11 @@
 import { corePageLoaders } from './core'
 import { usersPageLoaders } from './users'
-import { paymentPageLoaders } from './payment'
 import { toolsPageLoaders } from './tools'
 import { extensionsPageLoaders } from './extensions'
 
 export const componentLoaders = {
   ...corePageLoaders,
   ...usersPageLoaders,
-  ...paymentPageLoaders,
   ...toolsPageLoaders,
   ...extensionsPageLoaders,
 }

assets/admin/src/router/component-loaders/payment.js

@@ -1,3 +0,0 @@
-export const paymentPageLoaders = {
-  PaymentGateway: () => import('@/pages/payment/PaymentGateway.vue'),
-}

assets/admin/src/router/index.js

@@ -72,12 +72,10 @@ function createSectionRedirectRoutes() {
 }
 
 /**
- * Old SPA ops routes → native WP admin pages (Phase 4 transition).
+ * Old SPA ops routes → native WP admin pages.
  * Bookmarks under order-related paths land on NativeOpsRedirect.
  */
 const NATIVE_OPS_REDIRECTS = [
-  { path: '/payment/charge-card', title: '充值卡', nativeAdminPath: 'admin.php?page=aksrt_charge_cards' },
-  { path: '/payment/income', title: '创作分成运营', nativeAdminPath: 'admin.php?page=aksrt_income' },
   { path: '/users/messages', title: '消息中心', nativeAdminPath: 'users.php?page=aksrt_messages' },
   { path: '/users/referral-codes', title: '推广码运营', nativeAdminPath: 'users.php?page=aksrt_referral_codes' },
   { path: '/users/ban', title: '禁封管理', nativeAdminPath: 'users.php?page=aksrt_user_ban&tab=restrictions' },