完善租客等级免押与积分管理

backend/internal/modules/systemconfig/repository.go

@@ -37,7 +37,7 @@ var defaultConfigs = []defaultConfig{
 	{Key: listingPublishAgreementsConfigKey, Value: defaultListingPublishAgreementsConfigValue(), Description: "发布账号前协议配置 JSON"},
 	{Key: orderAgreementsConfigKey, Value: defaultOrderAgreementsConfigValue(), Description: "下单前协议配置 JSON"},
 	{Key: postRentalNoticeConfigKey, Value: defaultPostRentalNoticeConfigValue(), Description: "租后须知配置 JSON"},
-	{Key: rentergrowth.ConfigKey, Value: rentergrowth.DefaultConfigValue(), Description: "租客成长等级规则 JSON（积分门槛/下单折扣）"},
+	{Key: rentergrowth.ConfigKey, Value: rentergrowth.DefaultConfigValue(), Description: "租客成长等级规则（积分门槛、租金折扣、等级免押额度）"},
 	{Key: "chat.default_support_admin_id", Value: "2", Description: "默认客服 ID（必须是启用状态的客服角色）"},
 	{Key: "chat.auto_welcome_message", Value: "欢迎加入订单群聊！如有任何问题，请随时沟通。", Description: "建群后自动发送的欢迎话术"},
 	{Key: "chat.listing_group_welcome", Value: "欢迎加入账号群！请号主扫描下方二维码加入企业微信群，方便客服与您及时联系。", Description: "发布群创建后自动发送的欢迎语"},
@@ -135,6 +135,9 @@ func (r *Repository) Update(ctx context.Context, actorID uint64, key string, req
 			if err := tx.Save(&row).Error; err != nil {
 				return err
 			}
+			if err := syncRenterGrowthLevels(tx, key, req.Value); err != nil {
+				return err
+			}
 			if err := appendAuditLog(tx, actorID, "system_config.update", row.ID, meta, map[string]any{
 				"key":    row.Key,
 				"before": before,
@@ -144,6 +147,9 @@ func (r *Repository) Update(ctx context.Context, actorID uint64, key string, req
 			}
 			return nil
 		}
+		if err := syncRenterGrowthLevels(tx, key, req.Value); err != nil {
+			return err
+		}
 		return appendAuditLog(tx, actorID, "system_config.create", row.ID, meta, map[string]any{
 			"key":   row.Key,
 			"value": row.Value,
@@ -156,6 +162,17 @@ func (r *Repository) Update(ctx context.Context, actorID uint64, key string, req
 	return &dto, nil
 }
 
+func syncRenterGrowthLevels(tx *gorm.DB, key string, value string) error {
+	if key != rentergrowth.ConfigKey {
+		return nil
+	}
+	cfg, err := rentergrowth.ParseConfigValue(value)
+	if err != nil {
+		return err
+	}
+	return rentergrowth.SyncAllUserLevels(tx, cfg)
+}
+
 func (r *Repository) ensureDefaults(ctx context.Context) error {
 	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		for _, item := range defaultConfigs {

backend/internal/modules/systemconfig/service_update.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"strconv"
 	"strings"
+
+	"hfb_sys/backend/internal/modules/rentergrowth"
 )
 
 func (s *Service) Update(ctx context.Context, actorID uint64, key string, req UpdateRequest, meta AuditMeta) (*ConfigDTO, error) {
@@ -19,5 +21,16 @@ func (s *Service) Update(ctx context.Context, actorID uint64, key string, req Up
 			return nil, ErrInvalidConfig
 		}
 	}
+	if key == rentergrowth.ConfigKey {
+		cfg, err := rentergrowth.ParseConfigValue(req.Value)
+		if err != nil {
+			return nil, ErrInvalidConfig
+		}
+		value, err := rentergrowth.MarshalConfig(cfg)
+		if err != nil {
+			return nil, ErrInvalidConfig
+		}
+		req.Value = value
+	}
 	return s.repo.Update(ctx, actorID, key, req, meta)
 }