LISBON – Portugal’s government unveiled Friday a 3.4 billion-euro ($4.1 billion) rescue package for national airline TAP Air Portugal that entails more than 3,500 job losses — around one-third of the workforce.The plan, which requires the blessing of European Union authorities, also foresees a payroll cut of up to 25% by lowering wages.If approved, 500 pilots, 750 cabin crew and 750 ground crew will be laid off.