from pathlib import Path BASE_DIR = Path(__file__).resolve().parent.parent CHROMA_DIR = BASE_DIR / "chroma_db" EMBEDDING_MODEL = "BAAI/bge-small-en-v1.5" CHAT_MODEL = "llama-3.3-70b-versatile" TOP_K = 4 TEMPERATURE = 0.2 CHUNK_SIZE = 1500 CHUNK_OVERLAP = 400