Added Documents Feature

frontend/README.md

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+# Frontend Quickload
+
+## Overview
+- Tech: React 18, Vite, TypeScript, MUI, Tailwind, React Query, Zustand.
+- Auth: Auth0 via `src/core/auth/Auth0Provider.tsx`.
+- Data: API client in `src/core/api/client.ts` with React Query config.
+
+## Commands (containers)
+- Build: `make rebuild`
+- Tests: `make test-frontend`
+- Logs: `make logs-frontend`
+
+## Structure
+- `src/App.tsx`, `src/main.tsx` — app entry.
+- `src/features/*` — feature pages/components/hooks.
+- `src/core/*` — auth, api, store, hooks, query config, utils.
+- `src/shared-minimal/*` — shared UI components and theme.
+
+## Mobile + Desktop (required)
+- Layouts responsive by default; validate on small/large viewports.
+- Verify Suspense fallbacks and navigation flows on both form factors.
+- Test key screens: Vehicles, Fuel Logs, Documents, Settings.
+- Ensure touch interactions and keyboard navigation work equivalently.
+
+## Testing
+- Jest config: `frontend/jest.config.ts` (jsdom).
+- Setup: `frontend/setupTests.ts` (Testing Library).
+- Run: `make test-frontend` (containerized).
+
+## Patterns
+- State: co-locate feature state in `src/core/store` (Zustand) and React Query for server state.
+- Forms: `react-hook-form` + Zod resolvers.
+- UI: MUI components; Tailwind for utility styling.
+