fixing errors

agent.py

@@ -129,7 +129,7 @@ vector_store = SupabaseVectorStore(
     client=supabase,
     embedding= embeddings,
     table_name="documents",
-    query_name="match_documents_langchain",
+    query_name="match_documents",
 )
 create_retriever_tool = create_retriever_tool(
     retriever=vector_store.as_retriever(),
@@ -220,4 +220,4 @@ def build_graph(provider: str = "google"):
     builder.set_finish_point("retriever")
 
     # Compile graph
-    return builder.compile()
+    return builder.compile()