refactor: 拆分 TaskService 任务流程并补充注释

wanshenmean

2026-03-18 5c766d7e5c969b7530a014ded771973e242f25e0

 Code/WCS/WIDESEAWCS_S7Simulator/WIDESEAWCS_S7Simulator.Core/Memory/DBRegion.cs

@@ -73,6 +73,23 @@
        }

        /// <summary>
        /// 确保指定 DB 块存在。
        /// </summary>
        /// <param name="dbNumber">DB 块号</param>
        public void EnsureBlock(ushort dbNumber)
        {
            _lock.EnterWriteLock();
            try
            {
                CreateBlock(dbNumber);
            }
            finally
            {
                _lock.ExitWriteLock();
            }
        }

        /// <summary>
        /// 获取DB块
        /// </summary>
        /// <param name="dbNumber">DB编号</param>