- backend/photos: whitelist sortable columns instead of getattr(Photo, sort).
Previously any client-supplied string was passed to SQLAlchemy, exposing
every Photo attribute (filepath, file_hash, etc.) as a sort target.
- App: move the auto-show-right-sidebar logic out of the render body and
into a useEffect. The previous version called setState during render,
causing extra re-render passes the audit caught.
- types/photo: add added_at and tighten folder_id from optional to nullable.
Drops a (photo as any).added_at cast in Timeline.
- constants/colorLabels: extract a single COLOR_LABEL_OPTIONS used by
FilterBar, RightSidebar, and PhotoInfoPanel. filterStore re-exports the
ColorLabel type so existing imports keep working.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>