SAN FRANCISCO — This time, Carlos Beltran, David Freese and the St. Louis Cardinals took a six-run lead — and held onto it, barely. Beltran and Freese hit two-run homers and these wild, wild-card Cardinals beat the San Francisco Giants 6-4 on Sunday night in Game 1 of the NL championship series. The defending World Series champions took an early 6-0 cushion and made it stand up.