Module app 

Application state and TUI event loop.

The App struct owns long-lived state (config, HTTP client, cache, downloads, and the currently active AppScreen). It drives a simple state machine:

• render the current screen,
• wait for input,
• dispatch the key to a small handler per screen.

This is intentionally separated from the drawing code in screens/ so that alternative frontends can reuse the same "backend" services.

Structs

App

Root application object for the TUI.

Enums

AppScreen

All possible high-level screens in the TUI.