Update veryfinal.py

veryfinal.py

@@ -287,7 +287,7 @@ if retriever_tool:
     all_tools.append(retriever_tool)
 
 # Build graph function with fallback manager
-def build_graph():
+def build_graph(provider="groq"):
     """Build the LangGraph with rate limiting and fallbacks"""
     
     fallback_manager = ModelFallbackManager()