✨Feature: implement loot resolution system with gold and item tracking from defeated creatures

src/types/state.ts

@@ -217,6 +217,8 @@ export type RunState = {
   activeCombat?: CombatState;
   defeatedCreatureIds: string[];
   xpGained: number;
+  goldGained: number;
+  lootedItems: InventoryEntry[];
   log: LogEntry[];
   pendingEffects: RuleEffect[];
 };