# 10 — Unify Help, dialogs, and navigation

**What to build:** Give every page a consistent keyboard navigation and modal model, with scrollable contextual Help that can be consulted without losing current work.

**Blocked by:** 04 — Unify operation coordination and status feedback; 07 — Build the dedicated Profile management page.

**Status:** done

- [x] Help opens as a scrollable contextual dialog over the current page rather than an unbounded static document.
- [x] Help describes actions valid for the current page, focus, Target state, and operation state.
- [x] Escape closes the top dialog or returns one page level.
- [x] `q` returns from child pages and exits only from the dashboard.
- [x] Ctrl+C requests exit from every page and follows deferred-exit safety during mutations.
- [x] Closing a dialog restores the prior page, focus, selection, and viewport when still valid.
- [x] Dialog stacking and confirmation precedence are deterministic; an input cannot accidentally act on content behind a dialog.
- [x] Dialogs resize within the agreed terminal bounds and preserve meaningful focus.
- [x] Help can be opened and scrolled during a mutation while conflicting actions remain disabled.
- [x] Footer hints agree with actual accepted keys, including cancel and back behavior.
- [x] Complete-Model tests cover Help from every page, long Help, nested dialog precedence, resize, focus restoration, `q`, Escape, Ctrl+C, and in-flight operation behavior.