Revert "feat(auth): add email-first sign-in"

apps/storybook/stories/SignInForm.stories.tsx

@@ -1,10 +1,5 @@
 import type { Meta, StoryObj } from '@storybook/nextjs';
 import { SignInForm } from '@/components/auth/SignInForm';
-import { orderNewAccountProviders } from '@/lib/auth/sign-in-methods';
-import { ProdNonSSOAuthProviders } from '@/lib/auth/provider-metadata';
-
-// Mirrors discovery for an eligible unknown email, including Google-first presentation.
-const eligibleNewAccountProviders = orderNewAccountProviders(ProdNonSSOAuthProviders);
 
 const meta: Meta<typeof SignInForm> = {
   title: 'Auth/SignInForm',
@@ -17,8 +12,8 @@ const meta: Meta<typeof SignInForm> = {
     isSignUp: false,
     error: undefined,
     allowFakeLogin: false,
-    title: 'Welcome.',
-    subtitle: 'Sign in or create an account to get started',
+    title: undefined,
+    subtitle: undefined,
   },
 };
 
@@ -39,8 +34,6 @@ export const LandingNewUser: Story = {
   },
 };
 
-export const InitialSignInEmailOnly: Story = LandingNewUser;
-
 export const LandingNewUserEmailInput: Story = {
   args: {
     storybookInitialState: {
@@ -63,32 +56,9 @@ export const LandingNewUserEmailInputWithValue: Story = {
   },
 };
 
-export const InvalidEmail: Story = {
-  args: {
-    storybookInitialState: {
-      flowState: 'landing',
-      tier: 'new',
-      email: 'not-an-email',
-    },
-  },
-};
-
-export const DiscoveryLoading: Story = {
-  args: {
-    storybookInitialState: {
-      flowState: 'landing',
-      tier: 'new',
-      email: 'user@example.com',
-      showTurnstile: true,
-    },
-  },
-};
-
 export const LandingNewUserSignUp: Story = {
   args: {
     isSignUp: true,
-    title: 'Create your account',
-    subtitle: 'Sign up to get started',
     storybookInitialState: {
       flowState: 'landing',
       tier: 'new',
@@ -97,21 +67,6 @@ export const LandingNewUserSignUp: Story = {
   },
 };
 
-export const LandingEnterpriseSSO: Story = {
-  args: {
-    ssoMode: true,
-    emailOnly: true,
-    title: 'Enterprise SSO',
-    subtitle: "Enter your work email address to sign in with your organization's Single Sign-On",
-    storybookInitialState: {
-      flowState: 'landing',
-      tier: 'new',
-      email: '',
-      showEmailInput: true,
-    },
-  },
-};
-
 export const LandingNewUserWithError: Story = {
   args: {
     error: 'An error occurred. Please try again.',
@@ -229,40 +184,20 @@ export const ProviderSelectNewUser: Story = {
     storybookInitialState: {
       flowState: 'provider-select',
       email: 'newuser@example.com',
-      availableProviders: eligibleNewAccountProviders,
-      isNewUser: true,
-    },
-  },
-};
-
-export const ProviderSelectExistingGoogleFirst: Story = {
-  args: {
-    storybookInitialState: {
-      flowState: 'provider-select',
-      email: 'user@example.com',
-      availableProviders: ['google', 'github', 'email'],
-      isNewUser: false,
-    },
-  },
-};
-
-export const UnknownEmailAccountCreation: Story = {
-  args: {
-    storybookInitialState: {
-      flowState: 'provider-select',
-      email: 'new.user@example.com',
-      availableProviders: eligibleNewAccountProviders,
+      availableProviders: ['google', 'github', 'gitlab', 'linkedin', 'email'],
       isNewUser: true,
     },
   },
 };
 
-export const ProviderSelectNewUserGoogleFirst: Story = {
+export const ProviderSelectNewUserWithPreferredProvider: Story = {
   args: {
     storybookInitialState: {
       flowState: 'provider-select',
+      tier: 'returning', // This simulates having a hint, so preferred provider is first
       email: 'user@example.com',
-      availableProviders: eligibleNewAccountProviders,
+      // Providers would be sorted with preferred (e.g., 'github') first
+      availableProviders: ['github', 'google', 'gitlab', 'linkedin', 'email'],
       isNewUser: true,
     },
   },
@@ -403,19 +338,6 @@ export const Redirecting: Story = {
   },
 };
 
-export const RedirectingSingleProvider: Story = Redirecting;
-
-export const NoSupportedMethod: Story = {
-  args: {
-    error: 'No supported sign-in method is available for this account. Use a different email.',
-    storybookInitialState: {
-      flowState: 'landing',
-      tier: 'new',
-      email: 'long.email.address.for.mobile.layout@example.com',
-    },
-  },
-};
-
 export const RedirectingWithTitle: Story = {
   args: {
     title: 'Signing you in...',