Phase J audit findings: the visible focus ring the doc asked for
already exists (FocusOverlay singleton, 2px accent ring, breathing
pulse, reduce-motion aware — landed after the doc was written), and
post-Phase-C every modal already opens and dismisses keyboard-only.
The real gaps were two silently diverging static hotkey tables
(onboarding's slide vs Help's list — onboarding still said 'Mode
Launcher (then 1-5)') and no way to see the bindings mid-game.
- New crate::hotkeys module owns THE binding table (21 rows, verified
against a grep inventory of every just_pressed(KeyCode::..) handler);
rows carry an `essential` flag — the onboarding slide teaches that
subset, the cheat sheet shows everything.
- New cheat_sheet_plugin: hold `/` for a right-anchored reference
overlay of every binding; release hides it. Deliberately not a
spawn_modal modal (momentary reference, closer to a tooltip), never
spawns while a modal owns the screen (also keeps it out of the
seed-entry field), inert on touch builds.
- Onboarding's stale local table deleted in favour of the shared one
(copy updated: Home naming, hold-to-repeat undo, added H).
5 new tests (table integrity, essential-subset size, uniqueness,
show/hide driver, modal suppression). Workspace + clippy green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300