fix(cli): handle OSC52 clipboard passthrough properly under gnu screen

[valdemardi]

Issue for this PR

Closes #26491

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Please provide a description of the issue, the changes you made to fix it, and why they work. It is expected that you understand why your changes work and if you do not understand why at least say as much so a maintainer knows how much to value the PR.

How did you verify your code works?

Tested the copy functionality under gnu screen and tmux with short and long text passages.

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

Hey! Your PR title Handle OSC52 clipboard passthrough properly in GNU screen doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Based on my search, I found one potentially related PR:

Related PR:

• PR fix(clipboard): write OSC52 to /dev/tty instead of stdout #12129: fix(clipboard): write OSC52 to /dev/tty instead of stdout

This PR addresses OSC52 clipboard functionality and involves writing to /dev/tty, which is closely related to the clipboard passthrough handling in the current PR #26492. It appears to be addressing a similar clipboard/OSC52 issue, though the specific context may differ.

The search did not reveal any other open duplicate PRs addressing the same GNU screen OSC52 passthrough issue.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍