Addresses review feedback: the repo bans type casts in new code. Use a
real null guard that throws if the handler never received an event, so
the test keeps the handler contract type-checked.
Add routeSgrMouseInput() and routeSelectListMouse() to centralize the
repeated SGR parse + SelectList hit-test/hover/wheel/click patterns, and
make SelectList implement MouseRoutable via routeMouse(). The structural
SelectListMouseTarget interface keeps mouse.ts free of component imports.
Extend the emergency-restore tests to assert mouse-off sequences
(1006l/1003l/1000l) are emitted while keeping the alt-screen 1049 gating.
- Added `SettingsList` section-focus state with `sectionFocused`, `hasSectionFocusTargets`, and `toggleSectionFocus()`.
- Implemented section-heading navigation with Tab/Shift+Tab, Up/Down focus jumps, and Enter/Escape exits.
- Updated `/settings` input hints and fallback routing to tab-bar keys when section focus is unavailable.
- Added tests for section-focus navigation, mouse parsing, and tab-bar behavior coverage.
Wolfgang Schoenberger