App.tsx (routing + QueryClient), main.tsx (entry; index.html updated to
main.tsx), useAuth.tsx (typed AuthContextValue/User + MeResponse; uses the safe
useContext()||defaults pattern so no `never` trap), and the layout components
(Layout, Sidebar, NavPill, BrandBlock — NavItem type, LucideIcon-typed nav
config, casts for the untyped overdue/simplefin API responses). TS caught a dead
prop: App passed mainContentId to TrackerPage, which takes no params — removed.
typecheck 0, lint 0 errors (39 warns), build green, 17/17 e2e probe.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Skip-to-content link for keyboard users (sr-only/focus:not-sr-only pattern)
- aria-expanded and aria-haspopup on Tracker menu dropdown
- aria-label on footer, role='main' and aria-labelledby on layout wrapper
- Main content wrapped in <main> with unique id from React useId()
- Fixed build error: useId imported from react, not react-router-dom
- Hudson security audit: 5/5 PASS (no XSS, no DOM clobbering, no injection)
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