docs: note Hung-yi Lee speaker centroid is bundled with permission (USAGE.md)

docs: note Hung-yi Lee speaker centroid is bundled with permission (README.md)

docs: primary USAGE.md example loads tokenizer explicitly (transformers 5.x)

docs: primary README.md example loads tokenizer explicitly (transformers 5.x)

Initial OpenFormosa release of BlueMagpie-TTS (rebrand from voidful; provenance refs preserved)

initial commit