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.WorkService/appsettings.json

@@ -12,7 +12,8 @@
     "Port": 5672,
     "UserName": "smartschool",
     "Password": "@ss%&*otz%d*pq2S",
-    "VirtualHost": "InteractiveMagazine"
+    "VirtualHost": "InteractiveMagazine",
+    "PrefetchCount": 1
   },
   "Serilog": {
     "MinimumLevel": {
@@ -55,7 +56,8 @@
     "Model": "qwen2.5vl:7b",
     "TimeoutSeconds": 300,
     "MaxTokens": 2000,
-    "Temperature": 0.5,
+    "Temperature": 0.1,
+    "MaxConcurrency": 1,
     "ScoreMaxRetryCount": 3,
     "ScoreRetryDelayMilliseconds": 1000,
     "MaxImageBytes": 10485760,