In the annals of Seattle sports history, this will forever be the flashpoint: Where were you when you heard Russell Wilson was being traded to the Denver Broncos? Oh, it had been floating as a possibility since two Super Bowls ago, with far more substance to it (obviously) than many people wanted to acknowledge. And yet the finality of the midmorning tweetstorm hit with the impact of Kam Chancellor’s hit on Vernon Davis. You could call it the most shocking Seattle sports transaction since Ken Griffey Jr. was traded to the Reds in February 2000, yet that had been openly chronicled for months an…