namespace CORP_MAUI.Models; public class Message { public int Id { get; set; } public int SenderId { get; set; } public string SenderName { get; set; } = string.Empty; public int? ReceiverId { get; set; } public string ReceiverName { get; set; } = string.Empty; public string Content { get; set; } = string.Empty; public DateTime Timestamp { get; set; } public bool IsRead { get; set; } public MessageType Type { get; set; } } public enum MessageType { Personal, Group, System }