Rewrites two store tests to verify observable state instead of implementation-level call counts.
navigation-active-workspace-store: the "persists" test now uses a functional in-memory AsyncStorage mock that retains written values across vi.resetModules(), then rehydrates a fresh store instance and asserts the resulting selection state matches what was written.
checkout-git-actions-store: removes toHaveBeenCalledWith/toHaveBeenCalledTimes assertions on client methods; replaces with getStatus() assertions that reflect the store's actual state after each action completes or fails.