The maintenance "Fix alles" now collapses catalog_pages that share the same
caption_save + parent_id into a single survivor (moving catalog_items and
reparenting child pages before deleting duplicates), so the catalog tree
never renders double links. The duplicate-page count is also surfaced in the
health panel.
- Move /admin/import/* tools under /admin/studio/* and add studio nav, layout and tabs
- Add shared catalog maintenance panel plus a /admin/studio/maintenance tab
- Make furnidata reconciliation overwrite conflicting entries with the
DB-authoritative items_base classname/id (surfaced via fixedConflicts)
- Add furnidata_translate_enabled setting to skip the heavy localized
furnidata build during import (manual build-languages still forces it)
- Update staff smoke contract test for the studio hub
openhands