修正 ApiManager 成員的靜態性

src/api/ApiManager.ts

@@ -2,7 +2,7 @@ import BaseApi from './BaseApi.ts'
 import HttpServerLike from '../types/HttpServerLike.ts'
 
 export default class ApiManager {
-    declare httpServer: HttpServerLike
+    static httpServer: HttpServerLike
     static init(httpServer: HttpServerLike) {
         this.httpServer = httpServer
     }