Update app.py

app.py

@@ -386,7 +386,7 @@ You have access to the following tools:
                 "tools": "tools",  # If tools are called
                 "agent": "agent",  # If text is generated (the new loop)
                 END: END           # If final_answer is called
-            }
+            })
         self.graph = graph_builder.compile()
         print("✅ Graph compiled.")