修复(#84): 补齐促销管理API实现文件

Co-authored-by: multica-agent <github@multica.ai>

internal/logic/public/order/promoPricing_test.go

@@ -22,6 +22,46 @@ func (m fakePromoModel) InsertUsage(context.Context, *promo.Usage, ...*gorm.DB)
 	return nil
 }
 
+func (m fakePromoModel) InsertRule(context.Context, *promo.Rule) error {
+	return nil
+}
+
+func (m fakePromoModel) FindRule(context.Context, int64) (*promo.Rule, error) {
+	return nil, nil
+}
+
+func (m fakePromoModel) UpdateRule(context.Context, *promo.Rule) error {
+	return nil
+}
+
+func (m fakePromoModel) DeleteRule(context.Context, int64) error {
+	return nil
+}
+
+func (m fakePromoModel) QueryRuleList(context.Context, promo.RuleFilter) (int64, []*promo.Rule, error) {
+	return 0, nil, nil
+}
+
+func (m fakePromoModel) UpsertSubscribePromos(context.Context, []*promo.SubscribePromo) error {
+	return nil
+}
+
+func (m fakePromoModel) FindSubscribePromo(context.Context, int64) (*promo.SubscribePromo, error) {
+	return nil, nil
+}
+
+func (m fakePromoModel) DeleteSubscribePromo(context.Context, int64) error {
+	return nil
+}
+
+func (m fakePromoModel) QuerySubscribePromoList(context.Context, promo.SubscribePromoFilter) (int64, []*promo.SubscribePromo, error) {
+	return 0, nil, nil
+}
+
+func (m fakePromoModel) QueryUsageList(context.Context, promo.UsageFilter) (int64, []*promo.Usage, error) {
+	return 0, nil, nil
+}
+
 func TestCalculatePurchasePricePromoSkipsPercentDiscount(t *testing.T) {
 	svcCtx := &svc.ServiceContext{
 		DB: &gorm.DB{},