refactor(notifications): extract update notification ownership (#455)

Keep widget-before-send and CLI-after-send persistence, shared privacy filtering, and source-scoped release actions. Update ownership documentation and gettext references; supported behavior and TODO remain unchanged.
377ce7d06eSimone committed on 10/7/2026, 4:40:26 PM· committed by GitHubparent88da26a
14 files changedLine totals unavailable