fix(misskey-js): /signupと/signinの定義を作成してフロントの型エラーを抑制する (#12846)

* fix(misskey-js): /signupと/signinの定義を復活してフロントの型エラーを抑制する

* fix ci

* fix ci

* fix

* fix

---------

Co-authored-by: osamu <46447427+sam-osamu@users.noreply.github.com>

packages/backend/test/e2e/fetch-resource.ts

@@ -25,7 +25,7 @@ const JSON_UTF8 = 'application/json; charset=utf-8';
 describe('Webリソース', () => {
 	let app: INestApplicationContext;
 
-	let alice: misskey.entities.MeSignup;
+	let alice: misskey.entities.SignupResponse;
 	let aliceUploadedFile: any;
 	let alicesPost: any;
 	let alicePage: any;
@@ -34,7 +34,7 @@ describe('Webリソース', () => {
 	let aliceGalleryPost: any;
 	let aliceChannel: any;
 
-	let bob: misskey.entities.MeSignup;
+	let bob: misskey.entities.SignupResponse;
 
 	type Request = {
 		path: string,