fix: override WebAuthn credential type for Logto Account API

@simplewebauthn/browser returns type: "public-key" (W3C standard) but
Logto's verify endpoint expects type: "WebAuthn".

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

ui/src/api/logto-account-api.ts

@@ -40,7 +40,7 @@ export async function registerPasskey(getAccountToken: () => Promise<string>): P
     'POST',
     '/verifications/web-authn/registration/verify',
     token,
-    { verificationRecordId, payload: credential },
+    { verificationRecordId, payload: { ...credential, type: 'WebAuthn' } },
   );
   if (!verifyRes.ok) {
     const err = await verifyRes.json().catch(() => ({}));