methods: {
  // ... existing methods
  
  onFocusProbe: async function() {
    // Only check if dialog is visible
    if (!(this.isSignInDialogVisible || this.isReauthDialogVisible)) return;
    
    try {
      await axios.get('/admin/api/session-check', { suppressGlobalErrorHandler: true });
      this.resetState(); // Session restored - close dialog
    } catch (error) {
      // Still expired - keep dialog open
    }
  }
}

showLoginDialog(event) {
  if (this.isReauthRequired(event?.detail)) {
    this.isReauthDialogVisible = true;
  } else {
    this.isSignInDialogVisible = true;
  }
  
  // Start listening for tab focus
  window.addEventListener('focus', this.onFocusProbe);
}

resetState() {
  // Stop listening when dialog closes
  window.removeEventListener('focus', this.onFocusProbe);
  
  // ... existing reset logic
  this.signInForm = {
    username: window.__username__ || null,
    password: null,
    csrf_token: null
  };
  this.isSignInDialogLoading = false;
  this.isSignInDialogVisible = false;
  this.isReauthDialogVisible = false;
  this.signInErrorMessage = null;
  this.twoFaSelectForm = null;
  this.verificationCode = null;
  this.signInStep = 'sign-in';
}