public async Task<User?> GetByIdAsync(Guid productId, Guid id, CancellationToken cancellationToken = default)
    {
        return await dbContext.Set<User>()
            .Include(u => u.Licenses)
            .Include(u => u.Machine)
            .Include(u => u.Variables)
            .FirstOrDefaultAsync(u => u.ProductId == productId && u.Id == id, cancellationToken);
    }

    public async Task<User?> GetByIdAsync(Guid productId, Guid id, CancellationToken cancellationToken = default)
    {
        return await dbContext.Set<User>()
            .Include(u => u.Licenses)
            .Include(u => u.Machine)
            .Include(u => u.Variables)
            .FirstOrDefaultAsync(u => u.ProductId == productId && u.Id == id, cancellationToken);
    }