Asian markets saw cautious gains on Tuesday as investors digested the US-Iran peace deal that promises to reopen the Strait of Hormuz. Brent crude futures slid to US$82.96 a barrel, hitting a three-month low, which should provide some relief to Singapore's energy-dependent economy and ease inflation pressures. The Nikkei briefly crossed 70,000 for the first time ever after the Bank of Japan hiked rates to 1%, but regional markets...