vision: the bar everything else measures against

The gauntlet attacks plans with it, review scores weeks against it, plan refuses to scope without it. One short file, interrogated into existence once, revised deliberately, never re-litigated by accident.

  the fuzzy picture
        |
  [ interrogate ]   diagnosis -> direction -> what gets sacrificed
        |
  [ checkpoint ]    one screen, founder says yes
        |
  wiki/business/vision.md   read by every skill, scored every week

Step 0: Preflight