Toda referência do banco declara sua família de instrumento, e as 11 entradas do SH-101 migradas

Ingestão de amostras sem editar código + Roland SH-101 no banco

Add the Oberheim Matrix-1000 to the synth reference bank and classifier

Trained synth classifier: 41% top-1 / 69% top-3 (was 30-32% / 53-55% NN)

Real synth reference bank: 493 embeddings from real hardware (Legowelt)

Ship MERT reference DB; keep commercial tracks out of git and image