CSVEmitter.export_to_csv raised ValueError only in intensity mode; degenerate exports with --normalize-to-one silently wrote all-zero CSV files. The guard now runs before the mode split and no file is written in either mode.
CSVEmitter.export_to_csv raised ValueError only in intensity mode; degenerate exports with --normalize-to-one silently wrote all-zero CSV files. The guard now runs before the mode split and no file is written in either mode.