bug: pasting in API key includes stray 'v' character on mac

What version of Codex is running?

codex-cli 0.53.0

What subscription do you have?

n/a

Which model were you using?

n/a

What platform is your computer?

Darwin 24.6.0 arm64 arm with ghostty

What issue are you seeing?

Command+V to paste in the API key into the Provide your own API key prompt sometimes includes a stray v character at the end of the key.

<img width="454" height="276" alt="Image" src="https://github.com/user-attachments/assets/ba05acd9-5f49-4b12-9cc8-aaaf04fd60da" />

This also happens when sshed into a Linux machine from my mac+ghostty setup.

What steps can reproduce the bug?

1. run codex
2. run /logout
3. copy an api key like sk-something-super-secret
4. run codex, and choose sign in with api key
5. attempt to paste in the API key, and see the stray v character appear.

https://github.com/user-attachments/assets/ee1ea44a-e1bd-419e-8d61-33735aca0ba3

This issue does NOT exist on Linux directly, where my paste keybinding is ctrl+shift+v.

What is the expected behavior?

pasting in API keys works as expected.

Additional information

Fixed by #4903