Initial pass at Golden Pack.

internal/game/sim.go

@@ -17,16 +17,26 @@ func SimulateBattle(round, prioritySeat int, deckA, deckB []Card, rollDie func()
 			{Name: "A", Seat: 0, Deck: append([]Card(nil), deckA...)},
 			{Name: "B", Seat: 1, Deck: append([]Card(nil), deckB...)},
 		},
+		// Rollouts never pause for a mid-battle decision; a fixed policy resolves
+		// them (Golden pack: Nurse Shark).
+		autoBattleDecide: true,
 	}
-	g.resolveBattle()
+	g.startBattle()
 	return g.Battle
 }
 
-// TierContents returns the full printed contents of a tier's shop deck —
-// public information from the box. Cards carry placeholder IDs; they are
-// reference data, not live instances.
+// TierContents returns the full printed contents of a tier's shop deck for the
+// default pack. Cards carry placeholder IDs; they are reference data, not live
+// instances.
 func TierContents(tier int) []Card {
-	scratch := &Game{}
+	return TierContentsForPack(DefaultPack, tier)
+}
+
+// TierContentsForPack returns a pack's printed tier contents — public
+// information from the box. Used by the AI, which decides from a View that
+// names its pack.
+func TierContentsForPack(pack string, tier int) []Card {
+	scratch := &Game{Pack: pack}
 	scratch.buildShopDecks()
 	if tier < 1 || tier > len(scratch.ShopDecks) {
 		return nil