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

ProgramManager/src/Infrastructure/GozareshgirProgramManager.Infrastructure/Persistence/Repositories/TaskSectionRepository.cs

@@ -45,4 +45,11 @@ public class TaskSectionRepository:RepositoryBase<Guid,TaskSection>,ITaskSection
             .Include(x => x.AdditionalTimes)
             .ToListAsync(cancellationToken);
     }
+
+    public async Task<bool> HasUserAnyInProgressSectionAsync(long userId, CancellationToken cancellationToken = default)
+    {
+        return await _context.TaskSections
+            .AnyAsync(x => x.CurrentAssignedUserId == userId && x.Status == TaskSectionStatus.InProgress, 
+                cancellationToken);
+    }
 }