Fix noise-class padding shortcut: no_onset_start_s 10.0 -> 0.0. Every STEAD noise trace previously padded an identical, deterministic 200 samples (10s), a zero-exception class signature every model could trivially key on instead of genuine content -- see scripts/check_noise_padding_shortcut.py.
Fix noise-class padding shortcut: no_onset_start_s 10.0 -> 0.0. Every STEAD noise trace previously padded an identical, deterministic 200 samples (10s), a zero-exception class signature every model could trivially key on instead of genuine content -- see scripts/check_noise_padding_shortcut.py.
Fix noise-class padding shortcut: no_onset_start_s 10.0 -> 0.0. Every STEAD noise trace previously padded an identical, deterministic 200 samples (10s), a zero-exception class signature every model could trivially key on instead of genuine content -- see scripts/check_noise_padding_shortcut.py.
