- init_terminal() enables raw mode and clears main screen via Viewport::Fullscreen
- No alternate screen buffer used (deliberate BBS immersive approach)
- restore_terminal() disables raw mode and shows cursor using let _ for all calls
- install_panic_hook() restores terminal, prints BBS-themed message, delegates to original hook
- Use ratatui::crossterm re-export (crossterm is transitive dep only)
- All panic hook operations use let _ or eprintln! — no unwrap() or ? inside hook
ruohki
