More Diverse & Complex Examples

[zinthose]

Why it's good:

The shopping cart and Pygame examples are great, but more variety can show pureshell's applicability.

Ideas:

• CLI Application: A simple click or Typer app using pureshell for its core logic.
• Simple Data Transformation Pipeline: E.g., processing a CSV file, validating rows, and saving outputs.
• Finite State Machine: A state machine driven by pureshell rules.
• Integration with a Micro-framework: Show a tiny FastAPI or Flask example where pureshell manages the core request processing logic.

[zinthose]

Create an example involving database interactions (where the shell handles the ORM/DB access, and the core processes the retrieved data purely), or integration with a message queue. This would show how pureshell bridges the gap between pure logic and external systems.

[zinthose]

Explicitly demonstrate different strategies for error handling, especially showcasing how returns could improve this

See: #9