fix: OIDC auth flow, Vite proxy, and PostgreSQL query compat

- Add auth redirect in root layout for unauthenticated users
- Proxy OIDC routes (/login, /callback, /logout) through Vite dev server
- Strip Secure flag from OIDC cookies in dev mode (HTTP localhost)
- Disable retry on auth query to prevent stale cookie loops
- Fix SQLite .get()/.all()/.run() calls in category and global-item
  services for PostgreSQL compatibility
- Add userId scoping to category service functions
- Add OIDC error logging in auth middleware
- Apply linter auto-formatting across affected files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/hooks/useAuth.ts

@@ -11,6 +11,7 @@ export function useAuth() {
 		queryKey: ["auth"],
 		queryFn: () => apiGet<AuthState>("/api/auth/me"),
 		staleTime: 5 * 60 * 1000,
+		retry: false,
 	});
 }