refactor(pet): 重构宠物模块实体与接口

1. 将原Pet实体重命名为UserPet，新增PetTemplate模板实体拆分宠物模板与实例数据
2. 调整IPetService泛型参数为IBaseService<UserPet>
3. 补充宠物模板相关字段与查询逻辑，完善创建默认宠物的流程
4. 替换所有Pet实体引用为UserPet，修正相关服务层查询与更新逻辑

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

@@ -15,6 +15,16 @@ public class PetOutput
     /// </summary>
     public long UserId { get; set; }
 
+    /// <summary>
+    /// 宠物模板Id
+    /// </summary>
+    public long TemplateId { get; set; }
+
+    /// <summary>
+    /// 宠物模板名称
+    /// </summary>
+    public string? TemplateName { get; set; }
+
     /// <summary>
     /// 宠物昵称
     /// </summary>

QYZH.InteractiveMagazine.Models/Entity/PetEvolution.cs

@@ -10,6 +10,13 @@ namespace QYZH.InteractiveMagazine.Models.Entity
     {
         public PetEvolution() { }
 
+        /// <summary>
+        /// Desc:所属宠物模板Id（关联PetTemplate.Id）
+        /// Default:
+        /// Nullable:False
+        /// </summary>
+        public long TemplateId { get; set; }
+
         /// <summary>
         /// Desc:阶段名称
         /// Default:

QYZH.InteractiveMagazine.Models/Entity/PetSkin.cs

@@ -10,6 +10,13 @@ namespace QYZH.InteractiveMagazine.Models.Entity
     {
         public PetSkin() { }
 
+        /// <summary>
+        /// Desc:所属宠物模板Id（关联PetTemplate.Id）
+        /// Default:
+        /// Nullable:False
+        /// </summary>
+        public long TemplateId { get; set; }
+
         /// <summary>
         /// Desc:皮肤名称
         /// Default:

QYZH.InteractiveMagazine.Models/Entity/PetTemplate.cs

@@ -0,0 +1,62 @@
+using SqlSugar;
+
+namespace QYZH.InteractiveMagazine.Models.Entity
+{
+    /// <summary>
+    /// 宠物模板表（定义不同宠物种类，支持后期多宠物扩展）
+    /// </summary>
+    [SugarTable("PetTemplate")]
+    public partial class PetTemplate : SqlSugarBaseEntity
+    {
+        public PetTemplate() { }
+
+        /// <summary>
+        /// Desc:模板名称
+        /// Default:
+        /// Nullable:False
+        /// </summary>
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Desc:模板描述
+        /// Default:
+        /// Nullable:True
+        /// </summary>
+        public string Description { get; set; }
+
+        /// <summary>
+        /// Desc:默认初始进化形态Id（关联PetEvolution.Id）
+        /// Default:
+        /// Nullable:False
+        /// </summary>
+        public long DefaultEvolutionId { get; set; }
+
+        /// <summary>
+        /// Desc:模板图标地址
+        /// Default:
+        /// Nullable:True
+        /// </summary>
+        public string IconUrl { get; set; }
+
+        /// <summary>
+        /// Desc:排序权重
+        /// Default:0
+        /// Nullable:False
+        /// </summary>
+        public int SortOrder { get; set; }
+
+        /// <summary>
+        /// Desc:模板类型: Normal, Special, Limited
+        /// Default:Normal
+        /// Nullable:False
+        /// </summary>
+        public string Type { get; set; }
+
+        /// <summary>
+        /// Desc:状态: Active, Inactive
+        /// Default:Active
+        /// Nullable:False
+        /// </summary>
+        public new string Status { get; set; }
+    }
+}

QYZH.InteractiveMagazine.Models/Entity/UserPet.cs

@@ -3,12 +3,12 @@ using SqlSugar;
 namespace QYZH.InteractiveMagazine.Models.Entity
 {
     ///<summary>
-    ///宠物实例表
+    ///用户宠物实例表
     ///</summary>
-    [SugarTable("Pet")]
-    public partial class Pet : SqlSugarBaseEntity
+    [SugarTable("UserPet")]
+    public partial class UserPet : SqlSugarBaseEntity
     {
-        public Pet()
+        public UserPet()
         {
 
 
@@ -20,6 +20,13 @@ namespace QYZH.InteractiveMagazine.Models.Entity
         /// </summary>           
         public long UserId { get; set; }
 
+        /// <summary>
+        /// Desc:宠物模板Id（关联PetTemplate.Id）
+        /// Default:
+        /// Nullable:False
+        /// </summary>           
+        public long TemplateId { get; set; }
+
         /// <summary>
         /// Desc:宠物昵称
         /// Default: