Build a RESTful API for a bookstore application using Node.js, Express, and TypeScript. The API should manage books, authors, and categories. Each book has a title, author, category, publication year, and ISBN.

• Initialize a new Node.js project using npm or yarn.
• Use TypeScript for your project.

Set up an Express application with appropriate middleware. Include middleware for JSON parsing and logging.

Create routes for the following CRUD operations:

• Create a new book.
• Get a list of all books.
• Get details of a specific book.
• Update the details of a book.
• Delete a book.

• Create a new author.
• Get a list of all authors.
• Get details of a specific author.
• Update the details of an author.
• Delete an author.

• Create a new category.
• Get a list of all categories.
• Get details of a specific category.
• Update the details of a category.
• Delete a category.

• Use an in-memory array or a simple database (e.g., MongoDB or MySQL) to store books, authors, and categories.
• Implement appropriate relationships between books, authors, and categories.

• Validate the input data for creating and updating books, authors, and categories.
• Include appropriate error handling and return meaningful error messages.

Write unit tests for at least two routes using a testing framework of your choice (Jest, Mocha, etc.).

• Provide clear documentation on how to run your application and tests.
• Include a brief overview of the project structure and any important design decisions.
• Use Postman to document your endpoints

• Implement sorting and filtering options for the list of books, authors, and categories.
• Add pagination for the list endpoints.
• Include user authentication middleware.

• Fork this repository and commit your code.
• Include a README.md file with instructions on how to run the application and tests.
• Create a pull request with your completed assessment.