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

src/Settings/CreditsPaymentGroups.php

@@ -160,7 +160,7 @@ trait CreditsPaymentGroups {
     public static function get_settlement_settings(): array { return PaymentRuntime::get_settlement_settings(); }
 
     /**
-     * @return array{mode:string,test_enabled:bool,manual_review:bool,callback_secret:string,help_text:string}
+     * @return array<string,mixed>
      */
     public static function get_payment_gateway_settings(): array {
         return PaymentRuntime::get_payment_gateway_settings();
@@ -169,7 +169,7 @@ trait CreditsPaymentGroups {
     /**
      * 获取订单设置
      *
-     * @return array{prefix:string,flow_prefix:string,withdrawal_prefix:string,expiry:int,show_user:bool,show_paycount:bool,no_logged_in:bool,cookie_day:int,no_logged_remind:bool,wait_float:bool,order_max_minutes:int,mark:string,box_position:string,show_ip:bool,show_device:bool,show_order_no:bool,show_create_time:bool,show_pay_time:bool,status_texts:array,service:array}
+     * @return array{prefix:string,flow_prefix:string,withdrawal_prefix:string,expiry:int,show_user:bool,show_paycount:bool,no_logged_in:bool,cookie_day:int,no_logged_remind:bool,wait_float:bool,mark:string,box_position:string,show_ip:bool,show_device:bool,show_order_no:bool,show_create_time:bool,show_pay_time:bool,status_texts:array,service:array}
      */
     public static function get_order_settings(): array {
         return PaymentRuntime::get_order_settings();