✅ EF SaveChanges in transactions

await using var transaction = await _dbContext.Database.BeginTransactionAsync();
            
await _dbContext.Domains.AddAsync(domain);
await _dbContext.SaveChangesAsync();

await _dbContext.DomainVerifications.AddAsync(domainVerification);
await _dbContext.SaveChangesAsync();

await transaction.CommitAsync();

await using var transaction = await _dbContext.Database.BeginTransactionAsync();
            
await _dbContext.Domains.AddAsync(domain);
await _dbContext.DomainVerifications.AddAsync(domainVerification);

await _dbContext.SaveChangesAsync();
await transaction.CommitAsync();