feat: 完成多模块功能迭代与代码重构

本次提交包含多方面更新：
1. 新增消息类型枚举、杂志标题字段与AI提示词状态管理
2. 重构杂志服务，新增创建杂志接口并统一OSS路径命名规范
3. 调整题库任务结构，将答案解析迁移至独立表并优化关联查询
4. 新增AI提示词无分页查询与状态切换接口
5. 精简任务添加输入DTO，移除冗余字段
6. 修复控制器路由命名大小写不一致问题

QYZH.InteractiveMagazine.Models/Dto/Journal/JournalDto.cs

@@ -21,6 +21,11 @@ namespace QYZH.InteractiveMagazine.Models.Dto.Journal
         /// </summary>
         public string Name { get; set; }
 
+        /// <summary>
+        /// Desc:标题
+        /// </summary>
+        public string? Title { get; set; }
+
         /// <summary>
         /// Desc:总页数
         /// </summary>
@@ -31,7 +36,6 @@ namespace QYZH.InteractiveMagazine.Models.Dto.Journal
         /// </summary>
         public int VerifyPage { get; set; }
 
-     
 
         /// <summary>
         /// Desc:状态
@@ -105,41 +109,19 @@ namespace QYZH.InteractiveMagazine.Models.Dto.Journal
             set => _pdfPreviewUrl = value;
         }
 
-        /// <summary>
-        /// Desc:结论json
-        /// </summary>
-        public object? Conclusion { get; set; }
 
         /// <summary>
-        /// Desc:思路导读
+        /// Desc:
         /// </summary>
-        public string? Guide { get; set; }
-
-        /// <summary>
-        /// Desc:家长指导
-        /// </summary>
-        public string? Tutelage { get; set; }
-
-        /// <summary>
-        /// Desc:所属机构列表
-        /// </summary>
-        public Dictionary<long, string>? Organization { get; set; }
-
-        //public List<Dictionary<long, string>> Organizations => Organization.Select(c => new Dictionary<long, string>() { { c.Key, c.Value } }).ToList();
-
-        /// <summary>
-        /// Desc:副标题
-        /// </summary>
-        public string? Title { get; set; }
-
-        /// <summary>
-        /// 年级
-        /// </summary>
-        public int Grade { get; set; }
+        public string? Description { get; set; }
 
         /// <summary>
         /// Desc:下载书籍页码点阵码PDF文件名称
         /// </summary>
         public string? DownloadJournalPagePdfName { get; set; }
+
+
+        public string CreatedBy {  get; set; }
+        public DateTime CreatedAt {  get; set; }
     }
 }