Model card: hfa-english-fullweak-v2, mark v1 superseded

Add hfa-english-fullweak-v2 (leading-SP fix; passes the batch-invariance gate)

Model card: add the breath head nll-hubert-ls960-v1 and M4Singer attribution

Add nll-hubert-ls960-v1, the breath head for the hubert-base-ls960 aligner

Document the English checkpoint, its corpora terms and its limits

Add hfa-english-fullweak-v1 (step 54000)

Add model card

Add hfa-mandarin-fullweak-v1 (HubertFA, step 15000)

initial commit