fix(m6-synthesis): exhaustive [SUPERSEDED] tag sweep across ELEVATE-OR-KILL.md

Apply mechanical every-bullet/every-row/every-sentence [SUPERSEDED] rule to all superseded sections (★ through ★★★ plus preamble tables). Tag evaluative claims within the ★★★★/★★★★★ current sections that contradict canonical scorecard (red-team, fermi rework-rescue). Verify via scrutiny greps (a/b/c) - all hits carry inline [SUPERSEDED] or past-tense rewrite.