feat: 支持用户专属分组倍率配置

backend/internal/handler/dto/mappers.go

@@ -58,8 +58,9 @@ func UserFromServiceAdmin(u *service.User) *AdminUser {
 		return nil
 	}
 	return &AdminUser{
-		User:  *base,
-		Notes: u.Notes,
+		User:       *base,
+		Notes:      u.Notes,
+		GroupRates: u.GroupRates,
 	}
 }
 

backend/internal/handler/dto/types.go

@@ -29,6 +29,9 @@ type AdminUser struct {
 	User
 
 	Notes string `json:"notes"`
+	// GroupRates 用户专属分组倍率配置
+	// map[groupID]rateMultiplier
+	GroupRates map[int64]float64 `json:"group_rates,omitempty"`
 }
 
 type APIKey struct {