Update model card: add zen/zenlm tags, fix branding

Fix pipeline_tag to text-to-audio (valid HF tag), keep foley tag in tags list

Update README: document all .pth model files, two variants (XXL/XL), local loading instructions

fix: remove upstream model references from README

Update README with Zen branding

Add foley XL model weights

Add foley model weights

Add VAE weights

Add synchformer weights

Add config files

Upload README.md with huggingface_hub

Add README for zen-foley

initial commit