sheet upload fix

scripts/fast_test.py

@@ -1,7 +1,6 @@
 import sys
-import os
 sys.path.insert(0, ".")
-from app.services.rag_service import retrieve, answer_query
+from app.services.rag_service import retrieve
 from app.services.query_intent import extract_max_price, extract_brand_mention, is_count_query, detected_category
 
 print("=== Q1: How many products are there in Cadbury? ===")