* feat(ui): add PDF tab context menu (#1233)
* Tab menu: reveal through D-Bus off the UI thread
`dbus-send --print-reply --reply-timeout=2000` (and the xdg-open fallback)
could block the frame for 2 s or more; on Linux and FreeBSD the reveal now runs
on a `pdfcraft-reveal` thread and a failure is logged. The existence check stays
on the UI thread and is still reported; Windows and macOS launches are
unchanged. Refreshes the catalog hashes after the main merge.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: srt8hellcat2-ui <225485253+srt8hellcat2-ui@users.noreply.github.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>