Update config.py

config.py

@@ -1,24 +1,24 @@
 # config.py
 import os
+import warnings
 from dotenv import load_dotenv
 
 load_dotenv()
 
 GROQ_API_KEY      = os.getenv("GROQ_API_KEY", "")
-GROQ_MODEL        = "llama-3.3-70b-versatile"
 
+if not GROQ_API_KEY:
+    warnings.warn("GROQ_API_KEY not set — LLM calls will fail")
+
+GROQ_MODEL        = "llama-3.3-70b-versatile"
 DOCS_DIR          = "./docs"
 FAISS_INDEX_PATH  = "./faiss.index"
 BM25_PATH         = "./bm25.pkl"
 CHUNKS_PATH       = "./chunks.pkl"
 SOURCES_PATH      = "./sources.pkl"
 EMBEDDER_NAME     = "all-MiniLM-L6-v2"
-
 CHUNK_SIZE        = 500
 CHUNK_OVERLAP     = 50
 TOP_K             = 5
 MAX_RETRIES       = 3
 MAX_HISTORY_TURNS = 5
-
-if not GROQ_API_KEY:
-    raise ValueError("GROQ_API_KEY not set in .env file")