Boston’s respect for tradition is sometimes dismissed as slavish devotion. Truth: We just want to keep our nice things. Thirty-three years ago, Grill 23 emerged as the swank Hub chophouse against which others are measured. Yet the consistency of expertly prepared cuts is complemented by evolution: Recent years saw modernizing interior redesigns, the advent of an overdue bar menu and the introduction of a tableside cigar service that preps stogies for post-meal puffing. Innovative anachronisms: perfectly Boston.