- ftxui v6.1.9 fetched at configure time; vendored .a + headers dropped.
- TUI: visualisation area on top, input prompt at the bottom; ↑/↓ history,
Tab completion (commands + file paths), Esc cancels prompts. History is
persisted (XDG on Linux, %LOCALAPPDATA% on Windows when ported).
- Command registry: `new`, `load`, `search`, `clear`, `help`, `quit`/`exit`.
Inline params or interactive prompts; either way the canonical inline
form is what gets stored in history.
- `search`: second full-screen mode with module + parts/signals menus and
a live-filtered list; Tab cycles focus, Esc returns to the main shell.
- Domain: `System::modules()` accessor + `SystemElementContainer::size()`
to support load summary + search.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
