Thailand’s ruling party, which is seeking to retain power in next month’s election, has vowed to resolve the country’s conflict with Cambodia and clean up its image as a transit hub for trafficked scam victims.The conservative Bhumjaithai Party, which took power in September, has cast itself as the most suitable defender of Thai sovereignty during the border dispute between the two Southeast Asian countries. Clashes erupted for five days last July and reignited in December before a...