The automaton guards gold only within sight (X2XN stall)

The guard-the-gold rung cast SAFE/GLUE at a floor treasure with no
line-of-sight check; the engine refused the cast and the fallback
burned the bot's whole turn.

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

packages/engine/src/automaton.ts

@@ -1034,9 +1034,11 @@ function selfCare(view: GameView, style: AutomatonStyle, tier: TierTraits): Comm
   const myFloorTreasure = tier.guardGold
     ? view.treasures.find((t) => t.owner === view.you && t.position && !t.carriedBy)
     : undefined;
-  if (myFloorTreasure && enemyNear) {
+  // Both spells demand line of sight to the gold; a blind cast would be
+  // refused and cost the whole turn.
+  if (myFloorTreasure && enemyNear && sightedCellsFor(view).has(cellKey(myFloorTreasure.position!))) {
     const safe = inHand(view, "safe");
-    if (safe) {
+    if (safe && !view.squareContents[cellKey(myFloorTreasure.position!)]) {
       return { type: "cast", instanceId: safe.instanceId, target: { kind: "cell", cell: myFloorTreasure.position! } };
     }
     const glue = inHand(view, "glue");