Kale Williams, reporting for The Oregonian: Lynnae Ruttledge was worried when she heard Facebook planned to build a landing spot for an undersea fiber-optic cable near her Oregon Coast home. Tierra Del Mar, where the 70-year-old retired government worker lives part-time, is a tiny community north of Pacific City with no stoplights and no cell-phone service. The enclave, all zoned residential,…