客户转接系统

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