SEATTLE – Here is how the No. 6- seed 49ers (13-6) graded in Saturday night’s 41-6 divisional-playoff loss to the No. 1-seed Seahawks (15-3) at Lumen Field: PASS OFFENSE: F Brock Purdy got drilled on the first snap, and this unit stayed askew as he desperately searched for targets that never materialized. Jake Tonges, the Week 1 hero, started in place of an injured George Kittle and fumbled away the 49ers’ second possession before leaving with a foot injury. Things were so off that a double flea-flicker screen amounted to just a 1-yard gain from Demarcus Robinson. Purdy threw for 140...