Fix VibeVoice KugelAudio parameter handling and SageAttention support Technical details: - Apply KugelAudio 4-bit quantization instead of silently ignoring the flag - Honor KugelAudio inference_steps, top_p, and attention_mode settings - Add SageAttention patch support for KugelAudio and generalize attention restoration - Align KugelAudio logging with normal VibeVoice attention messages