Added Label on dto from Random Challenge

BeReadyBackend/DTO/RandomChallenges/GetRandomChallengeDto.cs

@@ -3,6 +3,7 @@
 public class GetRandomChallengeDto
 {
     public int Id { get; set; }
+    public string? Label { get; set; }
     public string? Libelle { get; set; }
     public int Duration { get; set; }
     public bool IsAlreadyPast { get; set; }

BeReadyBackend/Validators/RandomChallenges/GetRandomChallengeDtoValidator.cs

@@ -8,6 +8,14 @@ public class GetRandomChallengeDtoValidator : Validator<GetRandomChallengeDto>
 {
     public GetRandomChallengeDtoValidator()
     {
+        RuleFor(x => x.Label)
+            .NotEmpty()
+            .WithMessage("Label is required")
+            .MaximumLength(200)
+            .WithMessage("Label cannot exceed 200 characters")
+            .MinimumLength(2)
+            .WithMessage("Label must exceed 2 characters");
+        
         RuleFor(x => x.Libelle)
             .NotEmpty()
             .WithMessage("Libelle is required")