Update src/qa.py

src/qa.py

@@ -216,7 +216,7 @@ REASONING_PROMPT = (
 from vectorstore import build_faiss_index
 
 def retrieve_chunks(query: str, index, chunks: list, top_k: int = 5,
-                    min_similarity: float = 0.4, candidate_multiplier: int = 3,
+                    min_similarity: float = 0.3, candidate_multiplier: int = 3,
                     embeddings: list = None):
     if not index or not chunks:
         print("⚠️ No FAISS index or chunks provided — returning empty result.")