- New backend endpoint /api/huggingface/repo_tree lists files/folders
of a HF repo via HfApi.list_repo_tree (with list_repo_files fallback).
- SearchModels now returns real creator (from org/repo), metrics,
publishedAt and pipeline_tag-derived type, so cards show useful info.
- New repoTreeRenderer modal: breadcrumb navigation, per-file Download
(prefills Download tab with resolve URL) and Download repo button
(snapshot_download, auto-selects diffusers folder).
- searchRenderer rewritten: removed CivitAI-style version buttons;
each card now has View / Browse / Repo actions.
- eventListeners, UI, api client updated for the new buttons.
- DownloadModel no longer blocks snapshot downloads when the target
directory already exists (allows resume).
- CSS: added repo tree modal styles, removed dead all-versions CSS.