Method CreateComment

backend/Controllers/TasksController.cs:202–222

(int taskId, [FromBody] AddCommentDto dto)

    }

    [HttpPost("{taskId}/comments")]
    public async Task<IActionResult> CreateComment(int taskId, [FromBody] AddCommentDto dto)
    {
        try
        {
            int userId = GetUserId();
            var activity = await _taskService.AddCommentAsync(taskId, dto.Text, userId);

            // Notify clients to append to the activity log directly
            // Better yet, just emit TaskUpdated to reload activities on frontend
            var task = await _taskService.GetTaskByIdAsync(taskId, userId);
            if (task != null)
            {
                await _hubContext.Clients.Group($"board_{task.BoardId}")
                    .SendAsync("TaskUpdated", task);
            }

            return Ok(activity);
        }
        catch (UnauthorizedAccessException) { return Forbid(); }
    }

    [HttpDelete("activities/{activityId}")]
    public async Task<IActionResult> DeleteComment(int activityId)