- Fix: clicking '+' on work node now creates folder (category) instead of item
- Fix: built-in categories (人物设定, 空间/地点 etc.) no longer show delete button
- Fix: user-created custom folders show proper add/rename/delete options on hover
- Fix: pdf-parse build error by marking it as serverExternalPackage
- Add locale keys: settings.newFolder (zh/en/ru)