Initial commit: HelpDesk ICHN - .NET 10 backend + Next.js 16 frontend

backend/HelpDesk.Models/Entities/TicketComment.cs

@@ -0,0 +1,25 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace HelpDesk.Models.Entities;
+
+[Table("ticket_comments")]
+public class TicketComment
+{
+    [Key]
+    public Guid Id { get; set; }
+
+    public Guid TicketId { get; set; }
+    public Guid UserId { get; set; }
+
+    [Required]
+    public string Content { get; set; } = string.Empty;
+
+    public bool IsInternal { get; set; }
+
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+    // Navigation
+    public Ticket Ticket { get; set; } = null!;
+    public User User { get; set; } = null!;
+}