A rundown of the 49ers’ activity this weekend during the 2022 NFL draft: SaturdayBrock Purdy, QB, Iowa State (6-1, 220)Round 7 (No. 262) — Fast facts: Four-year starter completed 67.7% of his passes for 12,170 yards, 81 touchdowns and 33 interceptions. The first-team All-Big-12 quarterback goes into the books as this year’s “Mr. Irrelevant,” although as general manager John Lynch said, “He’s relevant to us.” Purdy is the sixth quarterback taken as Mr. Irrelevant since 1976. The last one was Chad Kelly in 2017 by Denver. — Fun fact: Purdy had no interaction at all with coach Kyle Shanahan going…
