- Added a new endpoint in `index.js` to update book data using the Google Books API, allowing for real-time updates based on ISBN.
- Introduced a `rebuild_book_entries` function in `libraryManager.py` to facilitate user-driven updates of book entries from the Google Books API.
- Enhanced error handling and user prompts for better interaction during book updates.
- Updated `public/index.html` and `public/script.js` to improve the user interface and support new functionalities.
- Modified styles in `public/styles.css` to enhance the layout and usability of the checkout button and location prompt.
- Updated .gitignore to exclude node_modules directory.
- Enhanced index.js with new endpoints for book fetching and checkout requests, integrating nodemailer and express-rate-limit for email notifications and request management.
- Added functionality to confirm book presence in the library and improved error handling for external book sources.
- Updated package.json and package-lock.json to include new dependencies (nodemailer, express-rate-limit) and their respective versions.
- Modified public HTML and JavaScript files to support new features, including a confirm mode for book scanning and improved UI elements.
- Updated styles for better user experience in the library interface.
