Add a dedicated button to create new worktree sessions directly from the
project header. The button appears on hover (alongside the existing menu)
for git repositories, making the worktree feature more discoverable.
- Add onNewWorktreeSession prop to SortableProjectItem
- Show git branch icon button between menu and new session button
- Button only visible for git repositories
- Uses same hover behavior as the existing project menu
Nils
195355ae8b