GAZA STRIP — Israel and Hamas’ cease-fire remains in place — but the firing hasn’t ceased, The Post can reveal after being among the first news outlets allowed into Gaza since President Trump’s peace plan went into effect last month. Across miles of devastation, dozens of Israeli Defense Force positions dot the outskirts of Gaza behind the “yellow line” marking the withdrawal established under Phase 1 of the plan. From there, soldiers keep watch for Hamas militants still bent on attacks despite the fragile truce.