Three feature flags changed the UI:
IS_NAVIGATION_MENU_ITEM_ENABLED — Sidebar no longer has a default
"People" link → navigate via URL instead
IS_COMMAND_MENU_ITEM_ENABLED — Button label is now "Create new Person"
(interpolated from object name) instead of static "Create new record"
IS_JUNCTION_RELATIONS_ENABLED — Company is now a junction relation
("Previous Companies") displayed inline, no longer a boxed
dynamic-relation-widget on the record page
