feat(tui): make the mouse disablable (#6824, #7926)

[blackheaven]

What does this PR do?

Closes #6824 and #7926

I have added a way to disable mouse all along:

Add a configuration option to disable mouse capture entirely:

// opencode.json
{
"tui": {
"mouse": false
}
}
Or via environment variable:

OPENCODE_DISABLE_MOUSE=true opencode

How did you verify your code works?

I did not test yet.

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

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

Based on the search results, I found one potentially related PR:

PR #6329: feat(tui): add disable_mouse option for Linux right-click paste support
#6329

This appears to be directly related to the current PR #13748. It also adds a feature to disable mouse functionality in the TUI, specifically for Linux right-click paste support. It may already implement the mouse disabling configuration that PR #13748 is addressing, and could be a duplicate or supersede this work.

[blackheaven]

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

Based on the search results, I found one potentially related PR:

PR #6329: feat(tui): add disable_mouse option for Linux right-click paste support #6329

This appears to be directly related to the current PR #13748. It also adds a feature to disable mouse functionality in the TUI, specifically for Linux right-click paste support. It may already implement the mouse disabling configuration that PR #13748 is addressing, and could be a duplicate or supersede this work.

Not really, think one disable the mouse all along, not just the paste