Add message queuing

What version of the VS Code extension are you using?

0.5.56

What subscription do you have?

Pro

Which IDE are you using?

VsCode

What platform is your computer?

ubuntu 24.04

What issue are you seeing?

When sending a new message in the codex extension when the agent is running, the conversation gets interrupted. When i do the same in codex cli, the message gets queued. Is this intentional? Would prefer the queuing behaviour in the vscode extension as well. When i want to interrupt, i can do that manually.

What steps can reproduce the bug?

see above

What is the expected behavior?

_No response_

Additional information

_No response_