A user found model folders cluttered after scans: four files per model.
model_sidecars.py now says where the plugin's own side files are (.info,
.anomalous.json, .civitai_bak.*): beside the model, or in the folder's
hidden .amb (Settings -> Models -> Files that come with models). Every
reader and writer goes through it and reads both places; covers stay
beside the model for ComfyUI and other plugins.
Scans no longer keep a copy of Civitai's picture identical to the cover:
the cover is noted as Civitai's (SHA-256 in the .info) and a copy is kept
aside only while the user's own cover shows. api/sidecar_layout.py moves
existing files and drops the duplicates to the Recycle Bin. The folder
tree leaves .amb out; the duplicated tree builder and cover owner check
are shared now (model_catalog.py, backup.py back under 600 lines).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
