Document CLIP model source in embedder.py and README

Model downloads automatically from HuggingFace Hub on first use.
No manual download required.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-05-20 12:04:10 +02:00
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@@ -439,6 +439,15 @@ pip3 install -r pgvector-demo/backend/requirements.txt --break-system-packages
pip3 install -r oravector-demo/backend/requirements.txt --break-system-packages
```
**CLIP model** — not included in the repository. It is downloaded automatically from
Hugging Face Hub on first use (~600 MB, cached in `~/.cache/huggingface/hub/`):
> `sentence-transformers/clip-ViT-B-32`
> https://huggingface.co/sentence-transformers/clip-ViT-B-32
No manual download is required — `sentence-transformers` handles this transparently
when `index_images.py` or a backend is started for the first time.
### 1. PostgreSQL
**Start the container:**