Los Angeles Times’ NFL writer, Sam Farmer, examines this week’s playoff matchups in the NFL wild-card round. Lines according to FanDuel. Last week’s record 12-4 (.750); season 168-111-2 (.625). Using point spreads with the scores Farmer had predicted, the record against the spread last week would have been 10-6 (.625); season 128-137-6 (.483). No. 7 Seattle (9-8) at No. 2 San Francisco (13-4) —…