Add two optional windowed frontends over the same local state the TUI and
web console read: `enodia-sentinel gui` (stdlib tkinter) and
`enodia-sentinel gui-qt` (PySide6, new `[qt]` extra).
Both share `gui/model.py`, a GUI-free presentation model over
`tui.collect_model`, so every formatter is unit-testable without a display
server. Only `app.py` and `qt_app.py` import GUI libraries, enforced by
import-guard tests mirroring the tray applet's boundary.
Tabs cover status, alerts, incidents, posture, integrity, response plans,
and the event tail, plus daemon-control buttons via systemctl. Response
plans are display-only; the GUIs never execute containment commands. Core
runtime dependencies stay empty.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JX86xeoBJVBb16qHkDf53K
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