ScragVAE — Improved VAE Decoder for ACE-Step 1.5

A fine-tuned AutoencoderOobleck decoder with an intent to improve audio fidelity for the ACE-Step 1.5 music generation pipeline. Drop-in compatible with all existing ACE-Step DiT checkpoints.

This is a conversion of the original ScragVAE that makes it usable with ComfyUI.