SEATTLE — Supporters of higher pay for minimum wage workers hailed a federal judge’s decision clearing the way for Seattle’s new minimum wage law to take effect as planned next month. In a 43-page decision, U.S. District Judge Richard A. Jones rejected claims by franchises of big national chains that the law discriminates against them. “Although plaintiffs assert that they will suffer competitive injury, loss of customers, loss of goodwill and the risk of going out of business, the court …