namespace UniVerse.Application.DTOs.Notifications; public static class NotificationChannels { public const string Email = "email"; } public record NotificationMessage( string Channel, string Recipient, string Subject, string Body, string? RecipientName = null, IReadOnlyDictionary? Metadata = null); public record SendNotificationRequest( string Channel, string Recipient, string Subject, string Body, string? RecipientName = null, IReadOnlyDictionary? Metadata = null); public record ScheduleNotificationRequest( string Channel, string Recipient, string Subject, string Body, DateTimeOffset SendAt, string? RecipientName = null, IReadOnlyDictionary? Metadata = null); public record ScheduledNotificationResponse(string JobId, DateTimeOffset SendAt); public record UserNotificationDto( int Id, string Type, string Title, string Body, bool IsRead, DateTime CreatedAt );