Reconstruct a signed pulse train from BinRAW Data_RAW demodulated bits
(run-length encoded at TE-µs steps) so BinRAW files populate raw_data and
flow through the existing RAW identification pipeline. Previously 0/120
BinRAW files yielded a predicted_category; now 118/120 categorize via the
live SignatureMatcher engine. RAW code path is unchanged.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>