新增摸大红业务并修复后台链接按钮白字

支持分类筛选、搜索、下单支付建群与固定二维码；合并迁移种子数据；后台表格编辑/详情链接恢复主题色可见。

backend/internal/modules/payment/repository.go

@@ -13,10 +13,17 @@ import (
 	"gorm.io/gorm"
 )
 
+// MohongOrderConfirmer 摸大红订单支付确认接口，避免 payment 与 mohong 循环依赖。
+type MohongOrderConfirmer interface {
+	ConfirmPaidFromChannelTx(tx *gorm.DB, orderID uint64) (uint64, error)
+	NotifyNewConversation(conversationID uint64)
+}
+
 type Repository struct {
 	db         *gorm.DB
 	configRepo *paymentconfig.Repository
 	orderRepo  *order.Repository
+	mohongRepo MohongOrderConfirmer
 	logger     *zap.Logger
 }
 
@@ -82,6 +89,13 @@ func WithLogger(logger *zap.Logger) RepositoryOption {
 	}
 }
 
+// WithMohongRepo 注入摸大红订单确认器。
+func WithMohongRepo(repo MohongOrderConfirmer) RepositoryOption {
+	return func(r *Repository) {
+		r.mohongRepo = repo
+	}
+}
+
 func (r *Repository) log() *zap.Logger {
 	if r == nil || r.logger == nil {
 		return zap.NewNop()
@@ -237,7 +251,7 @@ func (r *Repository) recordConfigUsage(ctx context.Context, runtimeConfig *runti
 	if r.configRepo == nil || runtimeConfig == nil || payment == nil || runtimeConfig.ID == 0 {
 		return
 	}
-	if payment.BizType != "order_pay" || payment.Status != "paid" {
+	if (payment.BizType != "order_pay" && payment.BizType != "mohong_pay") || payment.Status != "paid" {
 		return
 	}
 	if err := r.configRepo.RecordUsage(ctx, runtimeConfig.ID, payment.ID, runtimeConfig.Provider, runtimeConfig.MerchantID, payment.AmountCent, payment.BizType); err != nil {