MIAMI — Typically the week before NBA free agency tends to be somewhat of an exhale. But with the draft this time falling only days before Sunday’s 6 p.m. start of free agency, that hardly has been the case for the league. And it certainly was not for the Miami Heat, a week when Jimmy Butler and Bam Adebayo both were linked, in different ways, to discussions about contract extensions, when the Heat took a curious step in the draft, and when a previous Heat cash consideration came into clearer focus. So before the whirlwind of free agency, a spiral through the swirl of the week that was for the Heat. The Butler drama: Cast as news from the NBA’s newsbreakers, word that Butler is poised to bypass an extension request at the open of that July 7 window hardly comes as a surprise to those familiar with the drama. Reality: If Pat Riley were willing to immediately offer the maximum extension, Butler would arrive with pen in hand.