@cancel-worktree-cleanup Feature: Plan cancel cleans up worktree sandbox (#9230) Verifies that cancelling a plan after execute removes the git worktree branch and directory to prevent resource leaks. Scenario: _cleanup_sandbox_for_plan removes worktree for cancelled plan for cwc Given a temp git project with a worktree sandbox for plan "01TESTCANCEL000000000000" for cwc And a mocked service that resolves the project for cwc When I call _cleanup_sandbox_for_plan for plan "01TESTCANCEL000000000000" for cwc Then the branch "cleveragents/plan-01TESTCANCEL000000000000" should not exist for cwc And the worktree directory should not exist for cwc Scenario: _cleanup_sandbox_for_plan is a no-op when no sandbox exists for cwc Given a temp git project without any worktree for cwc And a mocked service with no linked resources for cwc When I call _cleanup_sandbox_for_plan for plan "01TESTNOSANDBOX0000000000" for cwc Then the call should complete without error for cwc