The war in Gaza has stopped — but the killing hasn’t . Terrified Palestinians fear Hamas has no plans to saddle up for “phase two” of President Trump’s peace deal as the terror group’s fury and violence against civilians has been on full display since Israeli forces retreated back home. “From the first moment the Israeli planes disappeared from the sky, Hamas began punishing the families,” one Gazan activist in the war-torn land told The Post. “They accused people of collaborating with Israel —