src/backend/Domain/Entities/Student.cs

@@ -10,11 +10,6 @@ public class Student
     public string Name { get; private set; } = string.Empty;
     public Email Email { get; private set; } = null!;
 
-    // Activation fields
-    public string? ActivationCodeHash { get; private set; }
-    public DateTime? ActivationExpiresAt { get; private set; }
-    public bool IsActivated => ActivationCodeHash == null;
-
     private readonly List<Enrollment> _enrollments = [];
     public IReadOnlyCollection<Enrollment> Enrollments => _enrollments.AsReadOnly();
 
@@ -58,19 +53,4 @@ public class Student
     {
         _enrollments.Remove(enrollment);
     }
-
-    public void SetActivationCode(string codeHash, TimeSpan expiresIn)
-    {
-        ActivationCodeHash = codeHash;
-        ActivationExpiresAt = DateTime.UtcNow.Add(expiresIn);
-    }
-
-    public void ClearActivationCode()
-    {
-        ActivationCodeHash = null;
-        ActivationExpiresAt = null;
-    }
-
-    public bool IsActivationExpired() =>
-        ActivationExpiresAt.HasValue && DateTime.UtcNow > ActivationExpiresAt.Value;
 }

src/backend/Domain/Ports/Repositories/IStudentRepository.cs

@@ -70,11 +70,6 @@ public interface IStudentRepository
         int pageSize = 10,
         CancellationToken ct = default);
 
-    /// <summary>
-    /// Gets all students with pending activation (not expired).
-    /// </summary>
-    Task<IReadOnlyList<Student>> GetPendingActivationAsync(CancellationToken ct = default);
-
     /// <summary>
     /// Adds a new student to the context.
     /// </summary>