Refactor chat command in main function to modify file contents

run.py

@@ -7,9 +7,10 @@ from src.chat import ChatSession
 
 async def _main() -> None:
     async with ChatSession(user="demo_user", session="demo_session") as chat:
-        doc_path = chat.upload_document("test.txt")
-        print(f"Document uploaded to VM at: {doc_path}")
-        answer = await chat.chat(f"Add a line to {doc_path} saying JavaScript sucks!")
+        # doc_path = chat.upload_document("test.txt")
+        # print(f"Document uploaded to VM at: {doc_path}")
+        answer = await chat.chat(f"Remove all contents of test.txt and add the text 'Hello, World!' to it.")
+        # answer = await chat.chat("What is in /data directory?")
         print("\n>>>", answer)