feat: add client password argument to multiple agents and scripts

- Introduced `--client_password` argument in `run_multienv_aguvis.py`, `run_multienv_claude.py`, and `run_multienv_gta1.py` for enhanced security and flexibility.
- Updated agent classes (`PromptAgent`, `AguvisAgent`, `GTA1Agent`) to accept and utilize `client_password` for improved configuration.
- Modified evaluation guidelines to reflect the new client password requirement.
- Ensured existing logic remains intact while enhancing functionality for better user experience.

mm_agents/openai_cua_agent.py

@@ -644,7 +644,7 @@ class OpenAICUAAgent:
         """
         Predict the next action(s) based on the current observation.
         """
-        prompt = OPERATOR_PROMPT.replace("{CLIENT_PASSWORD}", self.client_password)
+        prompt = OPERATOR_PROMPT.format(CLIENT_PASSWORD=self.client_password)
 
         base64_image = encode_image(obs["screenshot"])
         if self.cua_messages == []: