Clean uniform file names from PKG info (Title - TID - vVersion - Region, e.g. Elden Ring - PPSA04863 - v1.06 - EU). Single-file Rename button with preview, header Undo, multi-file drag-and-drop batch dialog (All/None, revert log), Revert dialog restores original names from any revert log, header Batch button, --batch-rename / --revert CLI with dry run, split multi-part sets stay together.
