WASHINGTON — President Trump’s secret ride inside an Turkish airport catering truck to board a military jet appears to have been captured on video last month — the climax of a stunning plane swap carried out while journalists and even some White House staffers sat unaware on Air Force One. The footage shows a catering truck with a raised box bed — typically used for loading meals — positioned with its dock raised on the far side of Air Force One as Trump boarded the presidential plane in Ankara July 8 following the annual conference of NATO heads of state,…