igir-dryrun.sh: read-only igir report for one platform vs given DAT(s), prints an identified%% summary + sample of unmatched files (the scoring step of the platform sweep). igir-dorename.sh: igir move to canonical names in place for one platform, with before/after manifests for reversibility and --dir-game-subdir never to keep folders flat. Cart-safe; not for disc systems with .m3u.