fix(account): prevent duplicate TOTP submission toast on success

Clear code input immediately after successful TOTP binding to prevent
the auto-submit useEffect from triggering a duplicate API call.

The issue occurred because:
1. User enters 6 digits, triggering handleSubmit via useEffect
2. API call succeeds, loading changes from true to false
3. handleSubmit (which depends on loading) gets recreated
4. useEffect triggers again since handleSubmit is a dependency
5. Second API call returns "TOTP is already in use" error toast

By clearing codeInput before navigation, the isCodeReady check fails
and prevents the duplicate submission.

Author: wangsijie

packages/account/src/pages/TotpBinding/index.tsx

@@ -144,6 +144,10 @@ const TotpBinding = () => {
         return;
       }
 
+      // Clear code input to prevent duplicate submission from the auto-submit useEffect
+      // (when loading state changes, handleSubmit gets recreated, which triggers the effect again)
+      setCodeInput([]);
+
       if (isBackupCodeEnabled(experienceSettings?.mfa) && !hasBackupCodes) {
         void navigate(backupCodesGenerateRoute, { replace: true });
         return;