Report: Jim Harbaugh’s “act has worn thin” in the 49ers locker room

At this rate, 49ers coach Jim Harbaugh’s infamous “who’s got it better than us?” victory cry eventually may become a “who hasn’t got it better than us?” lament. With most of the last nine days devoted to a dissection of the dysfunction between Harbaugh and 49ers G.M. Trent Baalke, Ann Killion of the San Francisco…