feat(listing): 优化优质号主发布与极品专区体验

backend/internal/modules/systemconfig/dto.go

@@ -182,9 +182,10 @@ type PublishDepositSkinGroupRule struct {
 }
 
 type PublishRatioConfig struct {
-	InsuranceBaseRatios []PublishInsuranceBaseRatio `json:"insurance_base_ratios"`
-	ConfigItems         []PublishRatioConfigItem    `json:"config_items"`
-	CoinCorrections     []PublishCoinCorrection     `json:"coin_corrections"`
+	QualityOwnerRatioDiscount float64                     `json:"quality_owner_ratio_discount"`
+	InsuranceBaseRatios       []PublishInsuranceBaseRatio `json:"insurance_base_ratios"`
+	ConfigItems               []PublishRatioConfigItem    `json:"config_items"`
+	CoinCorrections           []PublishCoinCorrection     `json:"coin_corrections"`
 }
 
 type PublishInsuranceBaseRatio struct {

backend/internal/modules/systemconfig/publish_options.go

@@ -105,6 +105,7 @@ func DefaultPublishOptions() PublishOptionsDTO {
 			},
 		},
 		RatioConfig: PublishRatioConfig{
+			QualityOwnerRatioDiscount: 1,
 			InsuranceBaseRatios: []PublishInsuranceBaseRatio{
 				{Insurance: "3*3", Ratio: 40},
 				{Insurance: "2*3", Ratio: 42},

backend/internal/modules/systemconfig/publish_options_test.go

@@ -106,6 +106,54 @@ func TestNormalizePublishOptionsValuePreservesCurrentSchema(t *testing.T) {
 	}
 }
 
+func TestNormalizePublishOptionsValueDefaultsQualityOwnerRatioDiscount(t *testing.T) {
+	legacy := `{
+		"schema_version": 2,
+		"ratio_config": {
+			"insurance_base_ratios": [{"insurance": "3*3", "ratio": 40}]
+		}
+	}`
+
+	normalized, err := normalizePublishOptionsValue(legacy)
+	if err != nil {
+		t.Fatalf("规范化失败: %v", err)
+	}
+	var got PublishOptionsDTO
+	if err := json.Unmarshal([]byte(normalized), &got); err != nil {
+		t.Fatalf("解析规范化结果失败: %v", err)
+	}
+	if got.RatioConfig.QualityOwnerRatioDiscount != 1 {
+		t.Fatalf(
+			"quality_owner_ratio_discount = %v, want 1",
+			got.RatioConfig.QualityOwnerRatioDiscount,
+		)
+	}
+}
+
+func TestNormalizePublishOptionsValuePreservesExplicitZeroQualityOwnerDiscount(t *testing.T) {
+	options := DefaultPublishOptions()
+	options.RatioConfig.QualityOwnerRatioDiscount = 0
+	raw, err := json.Marshal(options)
+	if err != nil {
+		t.Fatalf("构造配置失败: %v", err)
+	}
+
+	normalized, err := normalizePublishOptionsValue(string(raw))
+	if err != nil {
+		t.Fatalf("规范化失败: %v", err)
+	}
+	var got PublishOptionsDTO
+	if err := json.Unmarshal([]byte(normalized), &got); err != nil {
+		t.Fatalf("解析规范化结果失败: %v", err)
+	}
+	if got.RatioConfig.QualityOwnerRatioDiscount != 0 {
+		t.Fatalf(
+			"quality_owner_ratio_discount = %v, want explicit 0",
+			got.RatioConfig.QualityOwnerRatioDiscount,
+		)
+	}
+}
+
 func TestNormalizePublishOptionsValueMigratesSchemaV1Switches(t *testing.T) {
 	legacy := `{"schema_version":1,"next_season_pass_enabled":false,"server_options":["QQ"]}`
 

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" {