客户转接系统

backend/internal/modules/adminauth/repository.go

@@ -144,7 +144,20 @@ func (r *Repository) ensureDefaultAdmin() error {
 		Nickname:     "超级管理员",
 		Status:       "active",
 	}
-	return r.db.Create(&admin).Error
+	if err := r.db.Create(&admin).Error; err != nil {
+		return err
+	}
+
+	// 自动关联 super_admin 角色
+	var superAdminRole model.Role
+	if err := r.db.Where("code = ?", "super_admin").First(&superAdminRole).Error; err == nil {
+		r.db.Create(&model.AdminUserRole{
+			AdminID: admin.ID,
+			RoleID:  superAdminRole.ID,
+		})
+	}
+
+	return nil
 }
 
 func toDTO(admin model.AdminUser) AdminDTO {

backend/internal/modules/chat/repository.go

@@ -686,12 +686,11 @@ func (r *Repository) GetAvailableSupportAdmins() ([]SupportAdminDTO, error) {
 	}
 	var admins []adminRow
 	err := r.db.Table("admin_users AS au").
-		Select("au.id, au.nickname").
+		Select("DISTINCT au.id, COALESCE(NULLIF(au.nickname, ''), au.username) AS nickname").
 		Joins("JOIN admin_user_roles AS aur ON aur.admin_user_id = au.id").
 		Joins("JOIN role_permissions AS rp ON rp.role_id = aur.role_id").
 		Joins("JOIN permissions AS p ON p.id = rp.permission_id").
 		Where("au.status = ? AND p.code = ?", "active", "chat:view").
-		Distinct("au.id").
 		Scan(&admins).Error
 	if err != nil {
 		return nil, err
@@ -722,9 +721,9 @@ func (r *Repository) GetAvailableSupportAdmins() ([]SupportAdminDTO, error) {
 	result := make([]SupportAdminDTO, len(admins))
 	for i, a := range admins {
 		result[i] = SupportAdminDTO{
-			ID:           a.ID,
-			Nickname:     a.Nickname,
-			ChatCount:    loadMap[a.ID],
+			ID:        a.ID,
+			Nickname:  a.Nickname,
+			ChatCount: loadMap[a.ID],
 		}
 	}
 	return result, nil

backend/internal/modules/systemconfig/repository.go

@@ -41,7 +41,7 @@ var defaultConfigs = []defaultConfig{
 	{Key: "settlement.platform_fee_rate", Value: "0.00", Description: "平台抽成比例"},
 	{Key: "settlement.owner_cycle_days", Value: "0", Description: "号主结算周期天数"},
 	{Key: "withdraw.min_amount", Value: "100", Description: "提现最低金额预留"},
-	{Key: "chat.default_support_admin_id", Value: "1", Description: "订单群聊默认接入的客服管理员 ID"},
+	{Key: "chat.default_support_admin_id", Value: "1", Description: "订单群聊回退客服 ID（仅当无可用客服时使用）"},
 	{Key: homeAnnouncementsConfigKey, Value: defaultHomeAnnouncementsConfigValue(), Description: "移动端首页公告 JSON 数组"},
 	{Key: homeBannersConfigKey, Value: defaultHomeBannersConfigValue(), Description: "移动端首页轮播图 JSON 数组"},
 	{Key: publishOptionsConfigKey, Value: defaultPublishOptionsConfigValue(), Description: "发布页选项配置 JSON"},