feat(combat): wade visual + smoke test budget

public/js/match.js

@@ -97,6 +97,7 @@ function renderGrid(root, match) {
         if (isActive) cls.push('bf-unit--active');
         else cls.push('bf-unit--inactive');
         if (isWinner) cls.push('bf-unit--winner');
+        if (unit.wadedThisTurn) cls.push('bf-unit--wading');
         const unitBtn = el(
           'button',
           {