Add LICENSE and NOTICE files for license compliance

Fix attribution: honest base_model + upstream NOTICE; remove false Zen MoDE/scratch claims

Add NOTICE: Copyright Zen Authors

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

Update model card: Fix library_name to diffusers, correct pipeline_tag to text-to-video, proper WanModel usage, add zenlm tag, remove emojis and generic template

Add model weights

Add README for zen-world

initial commit