added interceptor and authService to manage log

src/app/services/api/model/models.ts

@@ -4,6 +4,7 @@ export * from './create-message-dto';
 export * from './create-user-dto';
 export * from './create-user-group-dto';
 export * from './delete-friend-request';
+export * from './error-response';
 export * from './get-achievement-dto';
 export * from './get-designation-dto';
 export * from './get-friend-dto';