The API interceptor was redirecting to /login on 401 errors, but since
admin-client is deployed under /admin/, it should redirect to /admin/login.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add base: '/admin/' to vite.config.ts for proper asset paths
- Replace vite.svg favicon with inline SVG emoji icon
- Fixes 404 errors when accessing admin panel at /admin/ path
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>