fix(sign-in): TOTP enrollment QR branding and verification failure

Two bugs in the sign-in UI's TOTP MFA enrollment flow:

1. Auth app displayed the PC hostname and "Platform Owner" instead of
   "Cameleer" and the user's email. The sign-in UI was rendering Logto's
   pre-generated QR code which uses the ENDPOINT hostname as issuer.
   Now generates our own otpauth:// URI with proper branding, rendered
   client-side via qrcode.react.

2. TOTP code verification returned 400 "Invalid TOTP code". The
   verifyTotpSetup() call was missing the required verificationId
   parameter — Logto's Experience API needs it to locate the pending
   secret during enrollment.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/sign-in/package-lock.json

@@ -10,6 +10,7 @@
       "dependencies": {
         "@cameleer/design-system": "^0.1.54",
         "@simplewebauthn/browser": "^13.3.0",
+        "qrcode.react": "^4.2.0",
         "react": "^19.0.0",
         "react-dom": "^19.0.0"
       },
@@ -1905,6 +1906,15 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/qrcode.react": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/qrcode.react/-/qrcode.react-4.2.0.tgz",
+      "integrity": "sha512-QpgqWi8rD9DsS9EP3z7BT+5lY5SFhsqGjpgW5DY/i3mK4M9DTBNz3ErMi8BWYEfI3L0d8GIbGmcdFAS1uIRGjA==",
+      "license": "ISC",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/react": {
       "version": "19.2.4",
       "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",

ui/sign-in/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@cameleer/design-system": "^0.1.54",
     "@simplewebauthn/browser": "^13.3.0",
+    "qrcode.react": "^4.2.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },

ui/sign-in/src/SignInPage.tsx

@@ -2,6 +2,7 @@ import { type FormEvent, useEffect, useMemo, useState } from 'react';
 import { Eye, EyeOff } from 'lucide-react';
 import { Card, Input, Button, Alert, FormField } from '@cameleer/design-system';
 import cameleerLogo from '@cameleer/design-system/assets/cameleer-logo.svg';
+import { QRCodeSVG } from 'qrcode.react';
 import { startAuthentication, startRegistration as startWebAuthnReg } from '@simplewebauthn/browser';
 import {
   signIn, startRegistration, completeRegistration,
@@ -311,7 +312,7 @@ export function SignInPage() {
   };
 
   // --- MFA enrollment ---
-  const [totpSetup, setTotpSetup] = useState<{ secret: string; secretQrCode: string; verificationId: string } | null>(null);
+  const [totpSetup, setTotpSetup] = useState<{ secret: string; otpauthUri: string; verificationId: string } | null>(null);
   const [totpCode, setTotpCode] = useState('');
 
   async function handleEnrollPasskey() {
@@ -343,7 +344,10 @@ export function SignInPage() {
     setLoading(true);
     try {
       const data = await createTotpSecret();
-      setTotpSetup(data);
+      const account = identifier || 'user';
+      const issuer = 'Cameleer';
+      const otpauthUri = `otpauth://totp/${encodeURIComponent(issuer)}:${encodeURIComponent(account)}?secret=${data.secret}&issuer=${encodeURIComponent(issuer)}&algorithm=SHA1&digits=6&period=30`;
+      setTotpSetup({ secret: data.secret, otpauthUri, verificationId: data.verificationId });
       setTotpCode('');
       setMode('mfaEnrollTotp');
     } catch (err) {
@@ -358,7 +362,7 @@ export function SignInPage() {
     setError(null);
     setLoading(true);
     try {
-      const verifiedId = await verifyTotpSetup(totpCode);
+      const verifiedId = await verifyTotpSetup(totpCode, totpSetup!.verificationId);
       await bindMfaProfile('Totp', verifiedId);
       const bc = await generateBackupCodes();
       await bindMfaProfile('BackupCode', bc.verificationId);
@@ -848,7 +852,7 @@ export function SignInPage() {
                 </p>
               </div>
               <div style={{ display: 'flex', justifyContent: 'center', padding: '8px 0' }}>
-                <img src={totpSetup.secretQrCode} alt="TOTP QR Code" width={180} height={180} />
+                <QRCodeSVG value={totpSetup.otpauthUri} size={180} />
               </div>
               <div style={{
                 textAlign: 'center', padding: '6px 10px',

ui/sign-in/src/experience-api.ts

@@ -347,8 +347,8 @@ export async function createTotpSecret(): Promise<{ secret: string; secretQrCode
   return res.json();
 }
 
-export async function verifyTotpSetup(code: string): Promise<string> {
-  const res = await request('POST', '/verification/totp/verify', { code });
+export async function verifyTotpSetup(code: string, verificationId: string): Promise<string> {
+  const res = await request('POST', '/verification/totp/verify', { code, verificationId });
   if (!res.ok) {
     const err = await res.json().catch(() => ({}));
     throw new Error(err.message || `TOTP verification failed (${res.status})`);