Neighbors in Leonardo Gastélum say they’ve gone weeks — some claim two months — without a single drop at the tap. On Wednesday, they took their frustration straight to the source, blocking the doors of the OOMSAPAS office in Cabo San Lucas. They say tankers are scarce, rotation schedules slip, and the bills still arrive. This is not an isolated gripe; nearby colonias have echoed the same story. What’s failing, what’s promised, and what actually c…