Merge PR #419: fix: pass stable task_id in CLI and gateway to preserve sandbox state across turns

Authored by rovle. Passes session_id as task_id to run_conversation()
in both CLI and gateway, so container backends (Docker/Modal/Singularity)
reuse the same sandbox across turns. Also passes task_id through to
_create_environment() in file_tools.py.

Cherry-picked from original PR branch (which had unrelated divergent
commits from the contributor's fork).

cli.py

@@ -2157,6 +2157,7 @@ class HermesCLI:
                 result = self.agent.run_conversation(
                     user_message=message,
                     conversation_history=self.conversation_history[:-1],  # Exclude the message we just added
+                    task_id=self.session_id,
                 )
             
             # Start agent in background thread

gateway/run.py

@@ -2131,7 +2131,7 @@ class GatewayRunner:
                             if _p:
                                 _history_media_paths.add(_p)
             
-            result = agent.run_conversation(message, conversation_history=agent_history)
+            result = agent.run_conversation(message, conversation_history=agent_history, task_id=session_id)
             result_holder[0] = result
             
             # Return final response, or a message if something went wrong

tools/file_tools.py

@@ -95,6 +95,7 @@ def _get_file_ops(task_id: str = "default") -> ShellFileOperations:
                 cwd=cwd,
                 timeout=config["timeout"],
                 container_config=container_config,
+                task_id=task_id,
             )
 
             with _env_lock: