The hotel that owes the largest wage theft payout in Oakland’s history still hasn’t paid a dollar to 128 ex-workers, according to union representatives who are pressuring the city to take legal action. Workers at the Radisson Hotel near the city’s airport were owed $20 an hour instead of the $15 rate they made between July 2019 and April 2020 because they declined health benefits — a wage-increase measure approved by voters in the 2018 election. Last fall, the city’s Department of Workforce and Employment Standards found the Edes Avenue hotel owed more than $400,000 in back pay to housekeepers,…