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.Service/UserJournalService.cs

@@ -32,6 +32,7 @@ public class UserJournalService(
     private const string QrCodeGenerateQueue = "mq.journal.qrcode.generate";
     private const string QrCodeGenerateRoutingKey = "rk.journal.qrcode.generate";
     private const int MaxBatchQrCodeCount = 500;
+    private const int MaxRandomIdGenerateRetryCount = 5;
 
     /// <summary>
     /// 用户绑定期刊（扫码绑定）
@@ -183,8 +184,10 @@ public class UserJournalService(
             throw new BusinessException("该期刊暂未发布，无法生成二维码", ResultCode.UNPROCESSABLE_ENTITY);
         }
 
+        var recordId = await GenerateUniqueQrCodeIdAsync();
         var record = new UserJournal
         {
+            Id = recordId,
             UserId = null,
             JournalId = input.JournalId,
             Type = 0,
@@ -243,9 +246,11 @@ public class UserJournalService(
         }
 
         var now = DateTime.Now;
-        var records = Enumerable.Range(0, input.Count)
-            .Select(_ => new UserJournal
+        var randomIds = await GenerateUniqueQrCodeIdsAsync(input.Count);
+        var records = randomIds
+            .Select(id => new UserJournal
             {
+                Id = id,
                 UserId = null,
                 JournalId = input.JournalId,
                 Type = 0,
@@ -459,6 +464,51 @@ public class UserJournalService(
         return JsonSerializer.Serialize(new { JournalId = journalId, Id = id });
     }
 
+    private async Task<long> GenerateUniqueQrCodeIdAsync()
+    {
+        for (var i = 0; i < MaxRandomIdGenerateRetryCount; i++)
+        {
+            var id = RandomIdHelper.GenerateLongId();
+            var exists = await userJournalRepository.Queryable()
+                .AnyAsync(uj => uj.Id == id);
+
+            if (!exists)
+            {
+                return id;
+            }
+        }
+
+        throw new BusinessException("生成二维码ID失败，请稍后重试", ResultCode.GLOBAL_ERROR);
+    }
+
+    private async Task<List<long>> GenerateUniqueQrCodeIdsAsync(int count)
+    {
+        var ids = new HashSet<long>();
+
+        for (var i = 0; i < MaxRandomIdGenerateRetryCount && ids.Count < count; i++)
+        {
+            while (ids.Count < count)
+            {
+                ids.Add(RandomIdHelper.GenerateLongId());
+            }
+
+            var candidateIds = ids.ToList();
+            var existingIds = await userJournalRepository.Queryable()
+                .Where(uj => candidateIds.Contains(uj.Id))
+                .Select(uj => uj.Id)
+                .ToListAsync();
+
+            if (existingIds.Count == 0)
+            {
+                return candidateIds;
+            }
+
+            ids.ExceptWith(existingIds);
+        }
+
+        throw new BusinessException("生成二维码ID失败，请稍后重试", ResultCode.GLOBAL_ERROR);
+    }
+
     private async Task SendBindJournalMessageAsync(Users user, Journal journal)
     {
         try