feat: add wechat mini program mall, check-in supplement and pet skin system

This commit implements a complete WeChat mini program mall and related features:
1. Add pet skin entity and backpack item type support
2. Add make-up check-in and missed date query functions
3. Implement mall product browsing, exchange and record query
4. Add backpack management and item usage (make-up card)
5. Add pet skin equipping function
6. Fix UserBag ItemId type from int to long
7. Adjust Dockerfile exposed port to 8080
8. Fix session cookie unprotect warning

QYZH.InteractiveMagazine.Models/Entity/Pet.cs

@@ -47,6 +47,13 @@ namespace QYZH.InteractiveMagazine.Models.Entity
            /// </summary>           
            public int FeedingCount {get;set;}
 
+           /// <summary>
+           /// Desc:当前皮肤Id（0为默认皮肤）
+           /// Default:0
+           /// Nullable:False
+           /// </summary>           
+           public long CurrentSkinId {get;set;}
+
            /// <summary>
            /// Desc:宠物类型
            /// Default:Normal