Trust, Iran’s chief negotiator made clear, remains in short supply. Tehran will not sign off on any agreement with Washington, he said, unless it can prove that Iranian rights are fully protected. The comments from Mohammad Bagher Ghalibaf came as fresh reports suggested US President Donald Trump had returned a more hardline peace proposal to Iran, highlighting just how much distance still separates the two sides. Any further revisions to the draft risk slowing an already fragile push to formally end the Middle East war and…