Forget “California cool” — the Golden State is now demanding actual cold. Los Angeles County is turning up the pressure on landlords — by telling them to turn down the temperature. Starting Jan. 1, 2027, landlords in unincorporated parts of LA County will be required to keep rental units at 82 degrees or cooler, marking a major shift in what counts as a livable home as Southern California battles hotter, longer and increasingly muggy heat waves. The new rule makes cooling part of the county’s habitability standards, joining long-standing requirements for basics like heat and hot water. In other words:…