You can’t have it both ways.A federal judge held a business consulting firm that insists its employee handbook is not a contract cannot force a worker to comply with a dispute-resolution provision on the ground that the handbook creates contractual obligations.In a written opinion last week, U.S. District Judge Gary Feinerman denied a motion by Wolf Retail Solutions I Inc. to compel an employee to mediate her pay dispute and then submit to arbitration if mediation fails.Feinerman acknowledged Wolf’s handbook …