namespace AuthHex.Models;
public class UserProvider
{
    public Guid ProviderId { get; set; }

    public Guid UserId { get; set; }
    public User User { get; set; } = null!;

    public string? Provider { get; set; } // Google, facebook, etc.
    public string? ProviderUserId { get; set; }

    public DateTime LinkedAt { get; set; } = DateTime.UtcNow;
}