Fix the VMA envelope: EGT is sustaining, and release at end of track
Play HandyPhone scores that drive the chip with register writes
Point doc references at docs/formats, not the out-of-branch TODOs
Fix C89 violation and a wave-buffer leak
update the docs
Drop SMAF_TODO.md from the branch (kept locally)
Separate the Mtsu setup wave bank from the Awa/Mwa bank
Decode MA-3 wave records and unpack its sampled-voice bodies