Frontend for pansy auth, rendering whatever /auth/providers reports. - lib/auth.ts: zod-validated User/Providers, a shared meQueryOptions (a 401 resolves to null, not an error) reused by useMe() and the router guard, useProviders(), and useLogin/useRegister/useLogout mutations that prime/clear the me cache (logout also drops non-auth cached data). - lib/queryClient.ts: one QueryClient shared by the React tree and the router context so guard and components hit the same cache. - router.tsx: createRootRouteWithContext with the queryClient; requireAuth (redirects to /login?redirect=<dest>) on gardens/plants/editor, and requireGuest on login/register (bounces authed users away). Login search params (redirect, error) validated as optional; redirect targets are restricted to same-origin paths. - pages/LoginPage: OIDC button (label from providers) linking to /auth/oidc/login, "or" divider, local email/password form, and friendly messages for the OIDC callback ?error= codes. RegisterPage: email + display name + password (min 8), registration-closed and SSO-only handling; auto-login lands on /gardens. - AppShell: auth-aware nav — shows the user's display name + Sign out when logged in, Sign in otherwise; nav links only when authed. - ui/: TextField (16px text to avoid iOS zoom, autocomplete + a11y), Button (+ shared buttonClasses for the OIDC anchor), Alert; AuthCard. Verified in a real browser against the embedded binary: register → auto-login → /gardens; refresh stays in; Sign out → /login; a logged-out /gardens/1 redirects to /login and returns after login; OIDC button renders with the Authentik label when configured. tsc --noEmit clean. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]> Claude-Session: https://claude.ai/code/session_01JdQpdYYsTgtkJBxbcpAszi