AdminSession (login with saved password, CLI round trips, timeouts, field
table, typed values) moves into ui-core; UiCore offers login answers and
CLI replies to it first. ui-new's Tools > Admin becomes a view over it.
L2: node detail > Admin with tabs and per-field popups.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
