Black market: 18 merchant types from the game's items and player professions

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Decentralized/BlackDelivery.cs

@@ -56,7 +56,7 @@ namespace Decentralized
             if (it == null || it.identifier == null) return null;
             if (Items.IsGpu(it)) return "gpu:" + Items.ToUnit(it).Model;
             string id = it.identifier;
-            return BlackMarket.Pool.Any(x => x.Key == id) || BlackMarket.PharmaPool.Any(x => x.Key == id) || BlackMarket.TechPool.Contains(id) ? id : null;
+            return Merchants.IsGood(id) ? id : null;
         }
 
         public static System.Collections.Generic.List<GameItem> Sellable() =>
@@ -71,7 +71,7 @@ namespace Decentralized
             return Value(id);
         }
 
-        public static GoodKind KindOf(string id) => id.StartsWith("gpu:") ? GoodKind.Gpu : BlackMarket.TechPool.Contains(id) ? GoodKind.Tech : GoodKind.Contraband;
+        public static GoodKind KindOf(string id) => id.StartsWith("gpu:") ? GoodKind.Gpu : Merchants.Info(id).Kind;
 
         /// <summary>每周刷新：现货与订单目录一起。返回是否刷新了。</summary>
         public static bool Restock(SaveData d, int day, bool force = false)