fix: signin の資格情報が足りないだけの場合はエラーにせず200を返すように (#14700)

* fix: signin の資格情報が足りないだけの場合はエラーにせず200を返すように

* run api extractor

* fix

* fix

* fix test

* /signin -> /signin-flow

* fix

* fix lint

* rename

* fix

* fix

packages/misskey-js/src/entities.ts

@@ -267,7 +267,7 @@ export type SignupPendingResponse = {
 	i: string,
 };
 
-export type SigninRequest = {
+export type SigninFlowRequest = {
 	username: string;
 	password?: string;
 	token?: string;
@@ -278,6 +278,19 @@ export type SigninRequest = {
 	'm-captcha-response'?: string | null;
 };
 
+export type SigninFlowResponse = {
+	finished: true;
+	id: User['id'];
+	i: string;
+} | {
+	finished: false;
+	next: 'captcha' | 'password' | 'totp';
+} | {
+	finished: false;
+	next: 'passkey';
+	authRequest: PublicKeyCredentialRequestOptionsJSON;
+};
+
 export type SigninWithPasskeyRequest = {
 	credential?: AuthenticationResponseJSON;
 	context?: string;
@@ -289,12 +302,7 @@ export type SigninWithPasskeyInitResponse = {
 };
 
 export type SigninWithPasskeyResponse = {
-	signinResponse: SigninResponse;
-};
-
-export type SigninResponse = {
-	id: User['id'],
-	i: string,
+	signinResponse: SigninFlowResponse;
 };
 
 type Values<T extends Record<PropertyKey, unknown>> = T[keyof T];