- **Search Features**: Facets, suggestions, security filtering, ranking rules
- **Integration Points**: Applications consuming search APIs
- **User Permissions**: Access control and label configurations

### 2. Infrastructure Requirements

Ensure your Fess environment meets these requirements:

- **Java**: JDK 17 or later
- **Memory**: Minimum 4GB RAM (8GB+ recommended for production)
- **Storage**: At least 2x your current index size

        return null;
    }

    /**
     * Performs logout for the specified user.
     *
     * SPNEGO authentication relies on the underlying Kerberos infrastructure
     * for session management, so no specific logout URL is provided.
     *
     * @param user The user to logout
     * @return Always returns null as SPNEGO doesn't provide a logout URL
     */
    @Override