refactor: 批量新增枚举类型并完成实体、DTO、服务层枚举替换

- 新增30+业务枚举类型覆盖用户、宠物、商城、社区、积分等模块
- 完成实体类、DTO、服务层的字符串枚举替换为强类型枚举
- 修复用户状态枚举名称变更，将Frozen改为Disabled
- 新增批量发布社区消息接口与控制器实现
- 新增操作日志、积分管理、补偿任务相关服务与DTO

QYZH.InteractiveMagazine.Models/Dto/Pet/PetSkinDto.cs

@@ -0,0 +1,131 @@
+using QYZH.InteractiveMagazine.Models.Enum;
+
+namespace QYZH.InteractiveMagazine.Models.Dto.Pet;
+
+/// <summary>
+/// 皮肤创建/更新输入
+/// </summary>
+public class PetSkinInput
+{
+    /// <summary>
+    /// 所属宠物模板Id
+    /// </summary>
+    public long TemplateId { get; set; }
+
+    /// <summary>
+    /// 皮肤名称
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 描述/特效说明
+    /// </summary>
+    public string? Description { get; set; }
+
+    /// <summary>
+    /// 稀有度: Normal, Rare, Epic, Legendary
+    /// </summary>
+    public string Rarity { get; set; } = "Normal";
+
+    /// <summary>
+    /// 排序权重
+    /// </summary>
+    public int SortOrder { get; set; }
+
+    /// <summary>
+    /// 皮肤类型: Normal, Limited, Event
+    /// </summary>
+    public string Type { get; set; } = PetSkinTypeEnum.Normal.ToString();
+}
+
+/// <summary>
+/// 皮肤输出
+/// </summary>
+public class PetSkinOutput
+{
+    public long Id { get; set; }
+    public long TemplateId { get; set; }
+    public string Name { get; set; } = string.Empty;
+    public string? Description { get; set; }
+    public string Rarity { get; set; } = string.Empty;
+    public int SortOrder { get; set; }
+    public string Type { get; set; } = string.Empty;
+    public string? CreatedBy { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public string? UpdatedBy { get; set; }
+    public DateTime? UpdatedAt { get; set; }
+
+    /// <summary>
+    /// 关联的皮肤图片列表
+    /// </summary>
+    public List<PetSkinImageOutput>? Images { get; set; }
+}
+
+/// <summary>
+/// 皮肤分页查询输入
+/// </summary>
+public class PetSkinQueryInput : PageQueryModel
+{
+    /// <summary>
+    /// 所属宠物模板Id（必填）
+    /// </summary>
+    public long TemplateId { get; set; }
+
+    /// <summary>
+    /// 皮肤名称（模糊搜索）
+    /// </summary>
+    public string? Name { get; set; }
+
+    /// <summary>
+    /// 稀有度: Normal, Rare, Epic, Legendary
+    /// </summary>
+    public string? Rarity { get; set; }
+}
+
+/// <summary>
+/// 皮肤图片创建/更新输入
+/// </summary>
+public class PetSkinImageInput
+{
+    /// <summary>
+    /// 皮肤Id
+    /// </summary>
+    public long SkinId { get; set; }
+
+    /// <summary>
+    /// 进化阶段Id
+    /// </summary>
+    public long EvolutionStageId { get; set; }
+
+    /// <summary>
+    /// 图片地址
+    /// </summary>
+    public string ImageUrl { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 图片顺序（动画帧序号）
+    /// </summary>
+    public int SortOrder { get; set; }
+
+    /// <summary>
+    /// 图片类型: Normal, Special
+    /// </summary>
+    public string Type { get; set; } = PetSkinImageTypeEnum.Normal.ToString();
+}
+
+/// <summary>
+/// 皮肤图片输出
+/// </summary>
+public class PetSkinImageOutput
+{
+    public long Id { get; set; }
+    public long SkinId { get; set; }
+    public long EvolutionStageId { get; set; }
+    public string ImageUrl { get; set; } = string.Empty;
+    public int SortOrder { get; set; }
+    public string Type { get; set; } = string.Empty;
+    public string? CreatedBy { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public string? UpdatedBy { get; set; }
+    public DateTime? UpdatedAt { get; set; }
+}