Sidebar collapsed state was an orphan in localStorage -- not backed up,
lost on portable installs, and inconsistent with every other preference.
Added sidebarCollapsed: boolean to the Settings type and DEFAULT_SETTINGS,
wired it through applySettings' boolean branch, and updated the renderer
store / main.tsx mock defaults. App.tsx now drives the toggle via
updateSettings({ sidebarCollapsed }) instead of localStorage.
typecheck + 242 tests + eslint green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
debont80
4e3b141d6d