# Optional: Hugging Face token (only needed for private models or rate-limited downloads)
# HF_API_TOKEN=hf_your_token_here

# Optional overrides
# RAG_EMBED_MODEL=mixedbread-ai/mxbai-embed-large-v1
# RAG_RERANK_MODEL=mixedbread-ai/mxbai-rerank-base-v2
# RAG_EMBED_BATCH=8
# RAG_DEVICE=cpu  # or "cuda" for GPU acceleration
# RAG_CHROMA_COLLECTION=cve_chunks