"""Retired legacy mutation UI.

Scanner lifecycle control is intentionally available only through supervisor.py.
The read-only observability UI remains dashboard.py.
"""

import streamlit as st


st.set_page_config(page_title='Scanner UI Retired', page_icon='LOCK', layout='centered')
st.title('Legacy scanner controls are retired')
st.error('This UI cannot start, pause, resume, cancel, or configure scans.')
st.info('Use the authenticated supervisor commands for lifecycle control and dashboard.py for read-only observability.')