OpenPets v2.0.9

Desktop release for OpenPets v2.0.9.\n\nHighlights:\n- Windows pet drag recovery after default pet changes, display changes, resume, and idle pass-through rearming.\n- Quiet Windows drag watchdog logging to avoid recurring user log growth.\n- Linux RPM artifact added alongside AppImage, deb, and tar.gz.\n\nThis v2.0.9 release was refreshed with the follow-up Windows drag fix.\n\nAfter publishing:\n- Smoke test macOS, Windows, and Linux artifacts.\n- Expect Gatekeeper/SmartScreen warnings until signing/notarization is configured.