OT6 v0.2.1 — HUD fixes

OT6 v0.2.1

A bug-fix patch over v0.2.
Same content — Figaro through Vargas — with two battle-HUD bugs fixed.
No balance or progression changes; a v0.2 save works unchanged.

How to play

Apply ot6-v0.2.1.bps to a Final Fantasy III (USA) 1.0 ROM (sha1
4f37e4274ac3b2ea1bedb08aa149d8fc5bb676e7) using any BPS patcher (Flips,
beat). The patcher will reject any other ROM.

Play through Vargas at the top of Mt. Kolts, then stop.

Fixed

• The Boost pips no longer turn into stray numbers. OT6's boost
  marks had been placed in video memory that the game also uses to draw
  damage numerals, so every hit painted over them. Moved out of the way.
• Boosting after you confirm an action no longer wastes the points.
  Spending Boost Points during target selection was always fully
  effective (the spell still folds to its higher tier); it only looked
  cosmetic because the pips were the ones being overwritten above. But a
  spend after the action was locked in charged you and did nothing.
  That window is closed — points are spent only where they still matter.

Under the hood

• A distributable can no longer be built from an untested ROM: the test
  gate stamps the exact ROM it passed on, and the patch step refuses
  anything else.
• The battle-menu regression test was watching stale addresses and could
  pass without exercising what it checks; it now keys on the real data,
  and the fixture it depends on verifies itself before it's used.