local_album and the queue batch action carried byte-identical ~110-line copies
of the FFmpeg re-enrich apply+SAF-writeback+temp-cleanup flow (differing only in
helper names). Extract one applyFfmpegReEnrichResult() so the SAF temp-file
cleanup — the class of bug fixed in fb7d101 — has a single source. The
track-detail copy stays: it drives snackbars and does not preserve metadata.
