refactor(server): auth/oauth (#3242)

* refactor(server): auth/oauth

* fix: show server error message on login failure

server/src/domain/auth/index.ts

@@ -1,5 +1,5 @@
 export * from './auth.constant';
-export * from './auth.core';
 export * from './auth.service';
 export * from './dto';
 export * from './response-dto';
+export * from './user-token.repository';