Retrained Sonata weights (contrastive data), 4096 tokens by default, updated evaluation

Add ONNX export (int8 embeddings) for on-device use in Orglet

Add model-index metadata with the typed-decisions scores

Add the benchmark chart to the card

Show the Tacet mark and icon badges at the top of the card

Link the GitHub repo, PyPI and docs at the top of the card

Release Tacet Sonata

initial commit