Add Event DTOs

BusinessLayer/DTOs/Event/EventCreateDTO.cs

+using System.ComponentModel.DataAnnotations;
+
+namespace BusinessLayer.DTOs.Event
+{
+    public class EventCreateDTO
+    {
+        [Required]
+        public Guid CreatorId { get; set; }
+
+        [Required]
+        public Guid RestaurantId { get; set; }
+
+        [Required]
+        [MaxLength(200)]
+        public string Title { get; set; }
+
+        [Required]
+        [MaxLength(2000)]
+        public string Content { get; set; }
+
+        [Required]
+        public DateTime Date { get; set; }
+    }
+}

BusinessLayer/DTOs/Event/EventDTO.cs

+using BusinessLayer.DTOs.Restaurant;
+
+namespace BusinessLayer.DTOs.Event
+{
+    public class EventDTO
+    {
+        public Guid Id { get; set; }
+        public string Title { get; set; }
+        public string Content { get; set; }
+        public DateTime Date { get; set; }
+        public DateTime CreatedAt { get; set; }
+        public DateTime UpdatedAt { get; set; }
+        public DateTime? DeletedAt { get; set; }
+        public RestaurantDTO Restaurant { get; set; }
+    }
+}

BusinessLayer/DTOs/Event/EventUpdateDTO.cs

+using System.ComponentModel.DataAnnotations;
+
+namespace BusinessLayer.DTOs.Event
+{
+    public class EventUpdateDTO
+    {
+        [MaxLength(200)]
+        public string? Title { get; set; }
+
+        [MaxLength(2000)]
+        public string? Content { get; set; }
+
+        public DateTime? Date { get; set; }
+    }
+}