注册上次新增消息类型的反射信息，新增测试接口

src/main/java/com/lion/lionwebsite/Configuration/CustomBean.java

@@ -18,7 +18,7 @@ import org.springframework.context.annotation.Configuration;
         SendResponse.class, Message.class, com.pengrad.telegrambot.model.User.class,
         Chat.class, MessageEntity.class,
         AbstractMethodError.class, DeleteGalleryMessage.class, DownloadPostMessage.class, DownloadStatusMessage.class,
-        IdentityMessage.class, MaintainMessage.class, ResponseMessage.class, LinkPreviewOptions.class})
+        IdentityMessage.class, MaintainMessage.class, ResponseMessage.class, AvailableCheckMessage.class, LinkPreviewOptions.class})
 public class CustomBean {
 
     @Bean

src/main/java/com/lion/lionwebsite/Controller/GalleryManageController.java

@@ -2,6 +2,7 @@ package com.lion.lionwebsite.Controller;
 
 import com.lion.lionwebsite.Service.CollectService;
 import com.lion.lionwebsite.Service.GalleryManageService;
+import com.lion.lionwebsite.Service.RemoteService;
 import com.lion.lionwebsite.Service.UserServiceImpl;
 import com.lion.lionwebsite.Util.Response;
 import jakarta.servlet.http.HttpServletRequest;
@@ -21,10 +22,13 @@ public class GalleryManageController {
 
     UserServiceImpl userService;
 
-    public GalleryManageController(GalleryManageService galleryManageService, CollectService collectService, UserServiceImpl userService) {
+    RemoteService remoteService;
+
+    public GalleryManageController(GalleryManageService galleryManageService, CollectService collectService, UserServiceImpl userService, RemoteService remoteService) {
         this.galleryManageService = galleryManageService;
         this.collectService = collectService;
         this.userService = userService;
+        this.remoteService = remoteService;
     }
 
     @PostMapping("")
@@ -39,6 +43,12 @@ public class GalleryManageController {
         return galleryManageService.reconnect();
     }
 
+    @PostMapping("/test")
+    public String test(){
+        remoteService.checkAvailability();
+        return "";
+    }
+
     @GetMapping("")
     public String selectGallery(String param, String type, String AuthCode) {
         int userId = userService.getUserId(AuthCode);   //能调到这里的授权码对应用户不可能为空