Tune Kaggle multi-GPU window preset

docs: add measured Kaggle beam1 speed

docs: refresh Kaggle T4 x2 speed numbers

fix: restore Space README metadata

docs: update Colab T4 speed profile

Add Hirashiba CT2 model options

Update README.md

Init Space: HachimiMT zh-vi demo (CT2, chuẩn hóa xưng hô)

initial commit