- Defer backend view creation for FIELDS widgets to prevent orphan views
when users cancel or leave before saving. Views are now created
optimistically in Jotai state (client-side UUID) and only persisted to
the database when the page layout is saved.
- Align the frontend's default field groups fallback with the backend
logic: split into General/Other groups, hide relation fields by default,
and filter invisible fields consistently across all code paths.
Weiko
9e385e44f9