refactor: Add limitDownloads() method to Bookshelves.php and implement IP...
refactor: Add limitDownloads() method to Bookshelves.php and implement IP validation in DownloadController
- Add the limitDownloads() method to the Bookshelves.php file to retrieve the maximum number of downloads allowed from the configuration
- Implement IP validation in the DownloadController to check if the user's IP is blocked before allowing downloads