尝试使用源生成器规范NodeModel代码逻辑

Library/Utils/MessageIdGenerator.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Library.Utils
+{
+    /// <summary>
+    /// 消息ID生成工具
+    /// </summary>
+    public class MessageIdGenerator
+    {
+        private static readonly object _lock = new object();
+        private static int _counter = 0;
+
+        /// <summary>
+        /// 生成一个不重复的标识
+        /// </summary>
+        /// <param name="theme"></param>
+        /// <returns></returns>
+        public static string GenerateMessageId(string theme)
+        {
+            lock (_lock)
+            {
+                // 时间戳
+                long timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+
+                // 机器标识（可以替换成更加独特的标识，如机器的MAC地址等）
+                string machineId = GetMachineId();
+
+                // 进程ID
+                int processId = Process.GetCurrentProcess().Id;
+
+                // 递增计数器，确保在同一毫秒内的多次生成也不重复
+                int count = _counter++;
+
+                // 随机数
+                byte[] randomBytes = new byte[8];
+                using (RandomNumberGenerator rng = RandomNumberGenerator.Create())
+                {
+                    rng.GetBytes(randomBytes);
+                }
+                string randomPart = BitConverter.ToString(randomBytes).Replace("-", "");
+
+                // 将所有部分组合起来
+                return $"{timestamp}-{machineId}-{processId}-{count}-{randomPart}-{theme}";
+            }
+        }
+
+        private static string GetMachineId()
+        {
+            // 这里使用 GUID 模拟机器标识
+            // 可以替换为更具体的机器信息
+            return Guid.NewGuid().ToString("N");
+        }
+    }
+
+}