feat(listing): 优化优质号主发布与极品专区体验

backend/internal/modules/systemconfig/repository.go

@@ -333,6 +333,10 @@ func normalizePublishOptionsValue(value string) (string, error) {
 	if err := json.Unmarshal([]byte(value), &fields); err != nil {
 		return "", err
 	}
+	if !hasNestedJSONField(fields, "ratio_config", "quality_owner_ratio_discount") {
+		options.RatioConfig.QualityOwnerRatioDiscount =
+			DefaultPublishOptions().RatioConfig.QualityOwnerRatioDiscount
+	}
 	originalVersion := options.SchemaVersion
 	if options.SchemaVersion < publishOptionsSchemaVersion {
 		if hasLegacyPublishQuantityItem(options.QuantityItems) {
@@ -360,6 +364,19 @@ func normalizePublishOptionsValue(value string) (string, error) {
 	return string(raw), nil
 }
 
+func hasNestedJSONField(fields map[string]json.RawMessage, parent, child string) bool {
+	raw, ok := fields[parent]
+	if !ok {
+		return false
+	}
+	var nested map[string]json.RawMessage
+	if err := json.Unmarshal(raw, &nested); err != nil {
+		return false
+	}
+	_, ok = nested[child]
+	return ok
+}
+
 func hasLegacyPublishQuantityItem(items []PublishQuantityItem) bool {
 	for _, item := range items {
 		if item.Key == "kit5" {