Sitting outside Dr. Insomnia’s coffee shop in Novato on a hot May morning, blonde and blue-eyed county supervisor hopeful Diane Furst has the easy warmth of a suburban mom. She’s exchanging text messages with her older daughter, arranging the 11-year-old’s summer softball plans. “Things seem to start earlier every year,” she said with a laugh.
With family affairs taken care of, she quickly delves into her platform. A homemaker and relative newcomer to Marin County,…