feat: 新增AI自动批改功能，完善任务评分体系

1.  添加AI评分配置节点到appsettings.json
2.  新增NeedAiProcess字段控制是否使用AI批改
3.  扩展答题记录实体，新增理解力、判断力、表达力、说服力评分字段
4.  实现期刊任务AI自动批改消费者逻辑，支持重试机制和图片处理
5.  优化实体类注释和代码结构
6.  新增Dockerfile用于容器化部署

QYZH.InteractiveMagazine.Models/Entity/JournalPageTaskUserAnswerSnapshot.cs

@@ -46,7 +46,7 @@ namespace QYZH.InteractiveMagazine.Models.Entity
         /// <summary>
         /// Points awarded.
         /// </summary>
-        public float Points { get; set; }
+        public int Points { get; set; }
 
         /// <summary>
         /// Growth points awarded.
@@ -58,6 +58,26 @@ namespace QYZH.InteractiveMagazine.Models.Entity
         /// </summary>
         public float Score { get; set; }
 
+        /// <summary>
+        /// Comprehension score.
+        /// </summary>
+        public float Comprehension { get; set; }
+
+        /// <summary>
+        /// Judgment score.
+        /// </summary>
+        public float Judgment { get; set; }
+
+        /// <summary>
+        /// Expression score.
+        /// </summary>
+        public float Expression { get; set; }
+
+        /// <summary>
+        /// Persuasiveness score.
+        /// </summary>
+        public float Persuasiveness { get; set; }
+
         /// <summary>
         /// Question answer image URL.
         /// </summary>