TypeDAL

Create a simple task management application using Python that leverages the TypeDAL package for type-safe database operations. The application should allow users to add, update, delete, and list tasks. Each task should have fields such as title, description, due date, priority level, and completion status.

### Project Requirements:
1. **Database Setup**: Use SQLite as your database backend. Utilize TypeDAL to define your database schema with proper typing to ensure type safety during runtime.
2. **CRUD Operations**: Implement Create, Read, Update, and Delete operations for tasks. Ensure these operations are type-safe and robust against common errors like SQL injection.
3. **User Interface**: Develop a basic command-line interface (CLI) where users can interact with the application. The CLI should provide clear prompts and feedback for each action.
4. **Validation**: Include input validation to ensure that dates are correctly formatted, priorities are within a specified range, and descriptions are not too long.
5. **Error Handling**: Implement error handling to gracefully manage invalid inputs and other exceptions.
6. **Persistence**: Ensure that data persists even after the application is closed and reopened.
7. **Optional Features**: Consider adding optional features such as filtering tasks by priority, searching for tasks by keyword, or marking all tasks as completed at once.

### How to Use TypeDAL:
- Define your models with TypeDAL, specifying types for each field to take advantage of type checking during development.
- Use TypeDAL's query builder to safely construct queries that avoid SQL injection risks.
- Leverage TypeDAL's transaction management capabilities to ensure database operations are atomic and consistent.

Your goal is to demonstrate a practical use case for TypeDAL in building a real-world application, focusing on its ability to enhance code quality through type safety.