Feature Request: Option to disable automatic worktree creation in Claude app Code tab

When using the Claude Code tab in the Claude desktop app, a worktree branch (e.g. claude/happy-grothendieck) is automatically created. This means commits go to the worktree branch, not main, and session logs/work don't persist on the main branch without an explicit merge step.

Request: Add a per-project setting (e.g. in .claude/settings.json) or a UI option to opt out of automatic worktree creation and work directly on the current branch.

Use case: Personal project management workflows where session logs and task files should accumulate on main without a separate merge step.