fixed minor bug

src/streamlit_app.py

@@ -181,7 +181,7 @@ async def run_research_process(topic: str):
         elaboration_result= await Runner.run(elaboration_agent, elaboration_input)
         enhanced_report= elaboration_result.final_output
         
-    return enhanced report 
+    return enhanced_report 
 
 ## Main Research Process