fix: 修复梯度佣金档位字段缺失，补全授权接口响应字段及强充有效状态

- OneTimeCommissionTierDTO 补充 operator 字段映射
- GrantCommissionTierItem 补充 dimension/stat_scope 字段（从全局配置合并）
- 系列授权列表/详情补充强充锁定状态和强充金额的有效值计算
- 同步 OpenSpec 主规范并归档变更文档

internal/model/dto/package_series_dto.go

@@ -4,6 +4,7 @@ package dto
 type OneTimeCommissionTierDTO struct {
 	Dimension string `json:"dimension" validate:"required,oneof=sales_count sales_amount" required:"true" description:"统计维度 (sales_count:销量, sales_amount:销售额)"`
 	StatScope string `json:"stat_scope" validate:"omitempty,oneof=self self_and_sub" description:"统计范围 (self:仅自己, self_and_sub:自己+下级)"`
+	Operator  string `json:"operator,omitempty" validate:"omitempty,oneof=> >= < <=" description:"阈值比较运算符（>、>=、<、<=），空值时计算引擎默认 >="`
 	Threshold int64  `json:"threshold" validate:"required,min=0" required:"true" minimum:"0" description:"达标阈值"`
 	Amount    int64  `json:"amount" validate:"required,min=0" required:"true" minimum:"0" description:"佣金金额（分）"`
 }

internal/model/dto/shop_series_grant_dto.go

@@ -17,9 +17,11 @@ type ShopSeriesGrantPackageItem struct {
 	Status      int    `json:"status" description:"分配状态 1-启用 2-禁用"`
 }
 
-// GrantCommissionTierItem 梯度佣金档位（operator 仅出现在响应中，来自 PackageSeries 全局配置）
+// GrantCommissionTierItem 梯度佣金档位（operator/dimension/stat_scope 仅出现在响应中，来自 PackageSeries 全局配置）
 type GrantCommissionTierItem struct {
 	Operator  string `json:"operator,omitempty" description:"比较运算符（>、>=、<、<=），响应中从 PackageSeries 合并，请求中不传"`
+	Dimension string `json:"dimension,omitempty" description:"统计维度（sales_count:销售量, sales_amount:销售额），来自 PackageSeries 全局配置，响应中只读"`
+	StatScope string `json:"stat_scope,omitempty" description:"统计范围（self:仅自己, self_and_sub:自己+下级），来自 PackageSeries 全局配置，响应中只读"`
 	Threshold int64  `json:"threshold" description:"阈值（与 PackageSeries 全局配置对应）"`
 	Amount    int64  `json:"amount" description:"该代理在此档位的佣金金额（分）"`
 }
@@ -90,6 +92,8 @@ type ShopSeriesGrantListItem struct {
 	CommissionType          string `json:"commission_type" description:"佣金类型"`
 	OneTimeCommissionAmount int64  `json:"one_time_commission_amount" description:"固定模式佣金金额（分）"`
 	ForceRechargeEnabled    bool   `json:"force_recharge_enabled" description:"是否启用强充"`
+	ForceRechargeLocked     bool   `json:"force_recharge_locked" description:"强充是否被套餐系列锁定（true 时代理不可修改）"`
+	ForceRechargeAmount     int64  `json:"force_recharge_amount" description:"强充金额（分）"`
 	AllocatorShopID         uint   `json:"allocator_shop_id" description:"分配者店铺ID"`
 	AllocatorShopName       string `json:"allocator_shop_name" description:"分配者店铺名称"`
 	PackageCount            int    `json:"package_count" description:"已授权套餐数量"`

internal/service/package_series/service.go

@@ -263,6 +263,7 @@ func (s *Service) dtoToModelConfig(dtoConfig *dto.SeriesOneTimeCommissionConfigD
 		tiers = make([]model.OneTimeCommissionTier, len(dtoConfig.Tiers))
 		for i, tier := range dtoConfig.Tiers {
 			tiers[i] = model.OneTimeCommissionTier{
+				Operator:  tier.Operator,
 				Dimension: tier.Dimension,
 				StatScope: tier.StatScope,
 				Threshold: tier.Threshold,
@@ -296,6 +297,7 @@ func (s *Service) modelToDTO(config *model.OneTimeCommissionConfig) *dto.SeriesO
 		tiers = make([]dto.OneTimeCommissionTierDTO, len(config.Tiers))
 		for i, tier := range config.Tiers {
 			tiers[i] = dto.OneTimeCommissionTierDTO{
+				Operator:  tier.Operator,
 				Dimension: tier.Dimension,
 				StatScope: tier.StatScope,
 				Threshold: tier.Threshold,

internal/service/shop_series_grant/service.go

@@ -128,11 +128,17 @@ func (s *Service) buildGrantResponse(ctx context.Context, allocation *model.Shop
 		resp.AllocatorShopName = "平台"
 	}
 
-	// 强充状态：first_recharge 或平台已启用 accumulated_recharge 强充时，锁定不可改
+	// 强充有效状态：first_recharge 或平台已启用 accumulated_recharge 强充时，锁定不可改
 	forceRechargeLocked := config.TriggerType == model.OneTimeCommissionTriggerFirstRecharge || config.EnableForceRecharge
 	resp.ForceRechargeLocked = forceRechargeLocked
-	resp.ForceRechargeEnabled = allocation.EnableForceRecharge
-	resp.ForceRechargeAmount = allocation.ForceRechargeAmount
+	if forceRechargeLocked {
+		// 锁定时强充实际生效，金额取套餐系列配置值（allocation 字段为 0 不能使用）
+		resp.ForceRechargeEnabled = true
+		resp.ForceRechargeAmount = config.ForceAmount
+	} else {
+		resp.ForceRechargeEnabled = allocation.EnableForceRecharge
+		resp.ForceRechargeAmount = allocation.ForceRechargeAmount
+	}
 
 	// 固定模式
 	if config.CommissionType == "fixed" {
@@ -153,11 +159,13 @@ func (s *Service) buildGrantResponse(ctx context.Context, allocation *model.Shop
 		// 合并全局 operator 和代理 amount
 		tiers := make([]dto.GrantCommissionTierItem, 0, len(config.Tiers))
 		for _, globalTier := range config.Tiers {
-			tiers = append(tiers, dto.GrantCommissionTierItem{
-				Operator:  globalTier.Operator,
-				Threshold: globalTier.Threshold,
-				Amount:    agentAmountMap[globalTier.Threshold],
-			})
+		tiers = append(tiers, dto.GrantCommissionTierItem{
+			Operator:  globalTier.Operator,
+			Dimension: globalTier.Dimension,
+			StatScope: globalTier.StatScope,
+			Threshold: globalTier.Threshold,
+			Amount:    agentAmountMap[globalTier.Threshold],
+		})
 		}
 		resp.CommissionTiers = tiers
 	}
@@ -452,9 +460,11 @@ func (s *Service) List(ctx context.Context, req *dto.ShopSeriesGrantListRequest)
 			SeriesID:                a.SeriesID,
 			AllocatorShopID:         a.AllocatorShopID,
 			OneTimeCommissionAmount: a.OneTimeCommissionAmount,
-			ForceRechargeEnabled:    a.EnableForceRecharge,
-			Status:                  a.Status,
-			CreatedAt:               a.CreatedAt.Format(time.DateTime),
+			// 强充有效状态在 seriesMap 分支中计算，此处先设默认值
+			ForceRechargeEnabled: a.EnableForceRecharge,
+			ForceRechargeAmount:  a.ForceRechargeAmount,
+			Status:               a.Status,
+			CreatedAt:            a.CreatedAt.Format(time.DateTime),
 		}
 		if a.AllocatorShopID > 0 {
 			item.AllocatorShopName = shopMap[a.AllocatorShopID]
@@ -466,6 +476,16 @@ func (s *Service) List(ctx context.Context, req *dto.ShopSeriesGrantListRequest)
 			config, _ := sr.GetOneTimeCommissionConfig()
 			if config != nil {
 				item.CommissionType = config.CommissionType
+				// 计算强充有效状态：first_recharge 或平台已启用 accumulated_recharge 强充时锁定
+				forceRechargeLocked := config.TriggerType == model.OneTimeCommissionTriggerFirstRecharge || config.EnableForceRecharge
+				item.ForceRechargeLocked = forceRechargeLocked
+				if forceRechargeLocked {
+					item.ForceRechargeEnabled = true
+					item.ForceRechargeAmount = config.ForceAmount
+				} else {
+					item.ForceRechargeEnabled = a.EnableForceRecharge
+					item.ForceRechargeAmount = a.ForceRechargeAmount
+				}
 			}
 		}
 		// 统计套餐数量