feat: add validation to prevent users from starting multiple sections in progress

ProgramManager/src/Domain/GozareshgirProgramManager.Domain/ProjectAgg/Repositories/ITaskSectionRepository.cs

@@ -13,4 +13,5 @@ public interface ITaskSectionRepository: IRepository<Guid,TaskSection>
 
     Task<List<TaskSection>> GetAssignedToUserAsync(long userId);
     Task<List<TaskSection>> GetActiveSectionsIncludeAllAsync(CancellationToken cancellationToken);
+    Task<bool> HasUserAnyInProgressSectionAsync(long userId, CancellationToken cancellationToken = default);
 }