Function show_plan_action_menu 

pub fn show_plan_action_menu(
    plan_path: &str,
    task_count: usize,
) -> PlanActionResult

Show the post-plan action menu

Displays after a plan is created, offering execution options:

1. Execute and auto-accept - runs all tasks without confirmation prompts
2. Execute and review - requires confirmation for each file write
3. Change something - lets user provide feedback to modify the plan