完善抓大鹅创作入口与运行态表现

src/components/auth/AuthGate.test.tsx

@@ -245,6 +245,7 @@ test('auth gate keeps password entry available when login options are empty', as
   const dialog = screen.getByRole('dialog', { name: '账号入口' });
   expect(within(dialog).getByLabelText('密码')).toBeTruthy();
   expect(within(dialog).queryByText('当前登录入口暂不可用。')).toBeNull();
+  expect(within(dialog).queryByText('读取登录方式失败')).toBeNull();
 });
 
 test('auth gate falls back to password entry when login options request fails', async () => {

src/components/auth/AuthGate.tsx

@@ -263,6 +263,7 @@ export function AuthGate({ children }: AuthGateProps) {
     let isActive = true;
 
     const hydrate = async () => {
+      const callbackResult = consumeAuthCallbackResult();
       const loadLoginOptions = async () => {
         const options = await getAuthLoginOptions();
         if (!isActive) {
@@ -291,16 +292,13 @@ export function AuthGate({ children }: AuthGateProps) {
 
           setAvailableLoginMethods(FALLBACK_LOGIN_METHODS);
           setUser(null);
-          setError(
-            optionsError instanceof Error
-              ? optionsError.message
-              : '读取登录方式失败，请稍后再试。',
-          );
+          // 中文注释：登录方式接口失败时按产品约定保留密码登录入口；
+          // 这里不展示接口读取错误，避免用户误以为登录本身不可用。
+          setError(callbackResult?.error ?? '');
           setStatus('unauthenticated');
         }
       };
 
-      const callbackResult = consumeAuthCallbackResult();
       if (callbackResult?.error && isActive) {
         setError(callbackResult.error);
         setShowLoginModal(true);