refactor: 优化AI评分与二维码ID生成逻辑，调整RabbitMQ配置

1. 调整RabbitMQ预取计数配置，支持从配置读取
2. 新增随机ID帮助类，生成唯一长整型ID
3. 重构二维码ID生成逻辑，新增重试机制避免重复
4. 优化AI评分配置，调整温度系数与并发限制
5. 重构跨页题评分逻辑，支持分组评分与结果去重
6. 新增AI评分异常分类与结果校验逻辑
7. 优化评分提示词与结果归一化处理

QYZH.InteractiveMagazine.Infrastructure/RabbitMQ/RabbitMQService.cs

@@ -1,5 +1,6 @@
 using RabbitMQ.Client;
 using RabbitMQ.Client.Events;
+using Microsoft.Extensions.Configuration;
 using System.Text;
 using System.Text.Encodings.Web;
 using System.Text.Json;
@@ -9,13 +10,15 @@ namespace QYZH.InteractiveMagazine.Infrastructure.RabbitMQ
     public class RabbitMQService : IRabbitMQService
     {
         private readonly IRabbitMQConnection _connection;
+        private readonly IConfiguration _configuration;
         private readonly JsonSerializerOptions options = new JsonSerializerOptions
         {
             Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping
         };
-        public RabbitMQService(IRabbitMQConnection connection)
+        public RabbitMQService(IRabbitMQConnection connection, IConfiguration configuration)
         {
             _connection = connection ?? throw new ArgumentNullException(nameof(connection));
+            _configuration = configuration;
         }
 
 
@@ -130,7 +133,13 @@ namespace QYZH.InteractiveMagazine.Infrastructure.RabbitMQ
         public async Task ReceiveAsync(string exchange, string queueName, string routingKey, Func<IChannel, BasicDeliverEventArgs, Task> callback, CancellationToken cancellationToken = default)
         {
             var channel = await _connection.CreateChannel();
-            //await channel.BasicQosAsync(0, 10, false); // 一次最多接收10条未确认的消息
+            var prefetchCount = _configuration.GetValue<ushort>("RabbitMq:PrefetchCount");
+            if (prefetchCount == 0)
+            {
+                prefetchCount = 1;
+            }
+
+            await channel.BasicQosAsync(0, prefetchCount, false, cancellationToken);
 
             // 声明 Exchange（持久化）
             await channel.ExchangeDeclareAsync(exchange: exchange, type: "direct", durable: true, autoDelete: false, arguments: null);