Deployment Notes

Design system rollout

Status: The design system styling is always active. The former FEATURE_DESIGN_SYSTEM runtime flag has been removed, so there is no rollback toggle during deployment.
Template contract: Every layout, view, and partial must keep data-ds on its root element. The entrypoint stamps data-ds="new" during bootstrap so controllers inherit the correct primitives.
Controllers: UI controllers still receive a designSystem context, but context.isNew() now always returns true. Use the context for consistency, but do not branch on legacy styling paths.