fix(project): use cwd instead of "/" when .git is not found

[rareboe]

When no .git directory exists in the directory tree, the project worktree and sandbox were hardcoded to "/", causing the web UI to show the root filesystem as the working directory. Now falls back to the actual working directory instead.

Issue for this PR

Closes #

Type of change

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

What does this PR do?

When running opencode in a directory without a .git folder, Project.fromDirectory() traverses up the directory tree looking for .git. If none is found, the fallback sets worktree and sandbox to "/" (root filesystem).

This causes the web UI to display / as the working directory, which is incorrect. The fix changes the fallback to use the original directory parameter (the actual CWD) instead of "/".

Changed file: packages/opencode/src/project/project.ts line 199-204

- worktree: "/",
- sandbox: "/",
+ worktree: directory,
+ sandbox: directory,

How did you verify your code works?

Ran opencode in a directory without .git and confirmed the web UI shows the correct CWD instead of /.

Screenshots / recordings

N/A

Checklist

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

[github-actions]

Thanks for your contribution!

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[github-actions]

This PR doesn't fully meet our contributing guidelines and PR template.

What needs to be fixed:

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[github-actions]

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

Potential Duplicate Found:

• PR fix(project): use working directory instead of / as fallback for non-git projects #15737: "fix(project): use working directory instead of / as fallback for non-git projects"
  • fix(project): use working directory instead of / as fallback for non-git projects #15737
  • This appears to be addressing the same issue: using the working directory as a fallback instead of "/" when .git is not found.

This is likely a duplicate of the current PR #16484, as both are fixing the exact same problem with the project worktree/sandbox fallback behavior.

[github-actions]

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