alter primary keys to uuids and adjust the membership system

local/repository/steam_credentials.go

@@ -4,6 +4,7 @@ import (
 	"acc-server-manager/local/model"
 	"context"
 
+	"github.com/google/uuid"
 	"gorm.io/gorm"
 )
 
@@ -30,12 +31,12 @@ func (r *SteamCredentialsRepository) GetCurrent(ctx context.Context) (*model.Ste
 }
 
 func (r *SteamCredentialsRepository) Save(ctx context.Context, creds *model.SteamCredentials) error {
-	if creds.ID == 0 {
+	if creds.ID == uuid.Nil {
 		return r.db.WithContext(ctx).Create(creds).Error
 	}
 	return r.db.WithContext(ctx).Save(creds).Error
 }
 
-func (r *SteamCredentialsRepository) Delete(ctx context.Context, id uint) error {
+func (r *SteamCredentialsRepository) Delete(ctx context.Context, id uuid.UUID) error {
 	return r.db.WithContext(ctx).Delete(&model.SteamCredentials{}, id).Error
-} 
+}