Add Events, Registrations, and Payments controllers with DTOs

backend/DTOs/RegistrationDtos.cs

@@ -0,0 +1,45 @@
+using System.ComponentModel.DataAnnotations;
+using RacePlannerApi.Models;
+
+namespace RacePlannerApi.DTOs;
+
+public class CreateRegistrationRequest
+{
+    [Required]
+    public Guid EventId { get; set; }
+
+    [MaxLength(100)]
+    public string? Category { get; set; }
+
+    [MaxLength(200)]
+    public string? EmergencyContact { get; set; }
+}
+
+public class UpdateRegistrationRequest
+{
+    public RegistrationStatus? Status { get; set; }
+
+    [MaxLength(100)]
+    public string? Category { get; set; }
+
+    [MaxLength(200)]
+    public string? EmergencyContact { get; set; }
+}
+
+public class RegistrationDto
+{
+    public Guid Id { get; set; }
+    public Guid EventId { get; set; }
+    public string EventName { get; set; } = string.Empty;
+    public DateTime EventDate { get; set; }
+    public Guid ParticipantId { get; set; }
+    public string ParticipantName { get; set; } = string.Empty;
+    public string ParticipantEmail { get; set; } = string.Empty;
+    public string Status { get; set; } = string.Empty;
+    public string? Category { get; set; }
+    public string? EmergencyContact { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public DateTime? UpdatedAt { get; set; }
+    public decimal TotalPaid { get; set; }
+    public decimal AmountDue { get; set; }
+}