view:change

instance.on('view:change', (event, instance) => {
    console.log('View changed:', {
        reason: event.reason,
        from: event.oldViewState,
        to: event.newViewState
    });
    
    // Remove transition CSS class
    document.body.classList.remove('chat-view-changing');
    
    // Track analytics
    if (event.newViewState.mainWindow && !event.oldViewState.mainWindow) {
        analytics.track('chat_opened', { reason: event.reason });
    }
    
    // Adjust page layout
    if (event.newViewState.mainWindow) {
        adjustPageLayout('chat-open');
    } else {
        adjustPageLayout('chat-closed');
    }
});