aplicacion-ventas-rjimenez

Create a mini-application using the 'aplicacion-ventas-rjimenez' Python package to manage a small retail store's sales operations. This application will allow users to add new products, update product prices, apply taxes, and calculate final sale prices after applying discounts. Here are the specific steps and features you need to implement:

1. **Product Management**: Users should be able to add new products to the inventory, specifying details such as product name, price, category, and tax rate.
2. **Price Updates**: Provide functionality to update the price of existing products.
3. **Tax Calculation**: Utilize the 'aplicacion-ventas-rjimenez' package to automatically calculate the tax based on the product's tax rate.
4. **Discount Application**: Implement a feature where users can apply discounts to products, either as a percentage off or a fixed amount, and have the 'aplicacion-ventas-rjimenez' package handle the calculation of the final sale price.
5. **Sales Report**: Develop a report generation feature that summarizes all sales transactions, including pre-tax and post-discount totals, and total revenue.
6. **User Interface**: Design a simple command-line interface for interacting with the application, making it user-friendly for store employees.

To achieve these functionalities, utilize the core features of the 'aplicacion-ventas-rjimenez' package for managing prices, applying taxes, and calculating discounts. Ensure your application demonstrates a clear understanding and effective use of the package's capabilities.