message3.txt

/generate Please generate a Python project for a basic todo list application with the following structure:

- todo_app/
  - app.py
  - todo.py
  - database.py
  - templates/
    - index.html
    - base.html
  - static/
    - css/
      - styles.css
    - js/
      - app.js
  - requirements.txt
  - README.md

The project should have the following functionality:
- Use Flask as the web framework
- Use SQLite for the database
- Allow users to view, add, update, and delete todo items
- Have a simple and intuitive user interface
- Include basic error handling and validation
- Provide clear instructions in the README.md file for running the application

Please include the necessary code for each file, along with any additional configuration or setup required. The code should be well-organized, follow best practices, and include comments where appropriate.