H3VAE TRT Custom Node Makes MiniMax H3 Encoding 1.7x Faster

A new ComfyUI custom node, H3VAE TRT, compiles the MiniMax H3 VAE encoder and decoder using TensorRT, cutting the encoding and decoding step by roughly 1.7 times. The node is available on GitHub. The speedup is especially noticeable on longer clips where VAE processing is a significant fraction of total generation time.