朱子纯 / test

Per docs/04 production stack: Vite + React 18 + TypeScript + AntD 5 +
Redux Toolkit + React Router v6 + Axios. Theme tokens copied from
prototype/XLY-ERP.html so density, colors, and layout match. Pages:
Login, Home, UserList, UserDetail, ModuleConfig — wired to existing
endpoints (/api/usr/auth/login, /api/usr/users, /api/mod/modules).
Backend-unsupported fields (user permission grid, 18 module fields,
iStaffId picker) hidden per scope. Sidebar/MegaNav remain static
reference data; dashboard stats hardcoded (no endpoint).

Enables the new frontend/ Vite app (localhost:5173) to call the backend
across origins. Adds OPTIONS preflight permitAll. Seed script provisions
an admin user (sUserName=admin / password=666666) for first-run login.