Function saveModel

main.js:9426–9734

(modelData)

    }
    
    if (index < 0 || index >= thumbnails.length) {
      throw new Error('Invalid thumbnail index');
    }
    
    // Cannot delete the active (first) thumbnail
    if (index === 0) {
      throw new Error('Cannot delete the active thumbnail');
    }
    
    // Remove the thumbnail at the specified index
    thumbnails.splice(index, 1);
    const updatedThumbnail = thumbnails.join('::');
    await saveThumbnail(filePath, updatedThumbnail);
    
    // Send refresh event
    if (event && event.sender) {
      event.sender.send('thumbnail-deleted', {
        filePath: filePath,
        thumbnailCount: thumbnails.length
      });
    } else if (isServerMode && global.broadcastEvent) {
      global.broadcastEvent('thumbnail-deleted', {
        filePath: filePath,
        thumbnailCount: thumbnails.length
      });
    }
    
    return true;
  } catch (error) {
    console.error('Error deleting thumbnail:', error);
    throw error;
  }
});

// Update the checkForUpdates function to track user's response
async function checkForUpdates(isBeta = false) {
  try {
    // First check if we've already shown update dialog this session
    const versionCheckPerformed = db.prepare('SELECT value FROM settings WHERE key = ?').get('versionCheckPerformedOnStartup');
    if (versionCheckPerformed && versionCheckPerformed.value === 'true') {
      console.log('Version check already performed this session, skipping');
      return null;
    }

    return new Promise((resolve, reject) => {
      const versionUrl = isBeta ? 
        'https://printventory.com/beta.version' : 
        'https://printventory.com/public.version';

      console.log('Main Process - Checking version URL:', versionUrl);

      https.get(versionUrl, (res) => {
        let data = '';
        res.on('data', (chunk) => data += chunk);
        res.on('end', () => {
          const version = data.trim();
          console.log('Main Process - Version check response:', version);
          // Validate version format (e.g., "0.6.0")