实现支付商户池与微信授权配置

新增收款商户、商户池轮询、微信授权配置独立管理；三类新支付
（C端套餐购买、C端资产钱包充值、代理在线预存款充值）无条件
经商户池选择并冻结路由，无旧综合配置回退。merchant_id 为空
历史支付继续按 payment_config_id 双读。凭证版本化加载与
ID+版本缓存保证轮换一致性。删除商户池新支付创建开关及全部
引用。

cmd/worker/main.go

@@ -18,6 +18,7 @@ import (
 	approvalApp "github.com/break/junhong_cmp_fiber/internal/application/approval"
 	auditArchiveApp "github.com/break/junhong_cmp_fiber/internal/application/auditarchive"
 	cardObservationApp "github.com/break/junhong_cmp_fiber/internal/application/cardobservation"
+	merchantpayment "github.com/break/junhong_cmp_fiber/internal/application/merchantpayment"
 	notificationApp "github.com/break/junhong_cmp_fiber/internal/application/notification"
 	walletApp "github.com/break/junhong_cmp_fiber/internal/application/wallet"
 	"github.com/break/junhong_cmp_fiber/internal/bootstrap"
@@ -376,6 +377,7 @@ func registerWeComApprovalOutboxConsumer(runtime *workerRuntime, cfg *config.Con
 		walletApp.NewRefundService(walletInfra.NewRefundEventWriter(outbox.NewRepository()), nil),
 	)
 	refundService.SetNotificationOutbox(outbox.NewRepository())
+	refundService.SetPaymentMerchantRuntime(merchantpayment.NewRuntimeLoader(runtime.db, runtime.redisClient))
 	refundService.SetLifecycleAudit(auditWriter)
 	if err := runtime.outboxConsumers.Register(commissionDelivery.EventRefundCommissionDeduct, commissionDelivery.NewRefundConsumer(refundService.ProcessCommissionDeduction, refundService.ProcessAssetPostProcessing)); err != nil {
 		appLogger.Fatal("注册退款佣金回扣 Outbox 消费者失败", zap.Error(err))
@@ -448,6 +450,7 @@ func registerAgentRechargeRecoveryTask(mux *asynq.ServeMux, runtime *workerRunti
 	)
 	recovery := agentrechargeApp.NewRecoverOnlinePaymentService(
 		runtime.db,
+		merchantpayment.NewRuntimeLoader(runtime.db, runtime.redisClient),
 		paymentInfra.NewWechatWebAdapter(wechat.NewRedisCache(runtime.redisClient), integration, appLogger),
 		paymentInfra.NewAlipayWapAdapter(integration, appLogger),
 		paymentInfra.NewFuiouScanAdapter(integration, appLogger),