Rev 21: collapsing walls crush anyone — monsters included

DESTROY WALL's "anyone in either square next to the wall takes 4
points" swept only wizards; a troll leaned on the falling masonry
untouched. The expansion sheet is explicit — "if a card specifies
'Opponent' or 'Anyone' as a target, this includes Monsters" — so the
collapse now crushes creatures in both squares, at the rim breach's
far side too. Earlier ledgers keep their charmed monsters.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/server/src/rooms.ts

@@ -54,7 +54,7 @@ export interface Room {
 const rooms = new Map<string, Room>();
 
 /** Rules revision new games are dealt under (stored games keep their own). */
-const RULES_REV = 20;
+const RULES_REV = 21;
 
 const ROOM_CODE_ALPHABET = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";