Stage 4: black market orders, escrow, delivery, seller scams, platform rug

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

src/Decentralized.Domain/Tuning.cs

@@ -89,6 +89,11 @@ namespace Decentralized.Domain
         /// <summary>Ponero 兑换处：开放所需黑市声望、每次兑入 / 兑出的手续费、每天可兑换的额度（信用点）、对 PSC 的价格比。</summary>
         public const int PoneroOpenRep = 30;
         public const double PoneroFee = 0.08, PoneroDailyCap = 1000, PoneroPscRatio = 0.5;
+        /// <summary>黑市订单：订单价相对游戏基础价的折扣、托管费、提前放款再折扣、提前放款所需卖家成交数、上门 / 死投的天数、
+        /// 上门 / 死投被截获的概率（镇压期间再加）、死投被别人先挖走的概率、骗子卖家占比、每晚平台跑路基础概率与每万信用点托管资金加的概率（封顶）、跑路后关闭的天数。</summary>
+        public const double BmOrderDiscount = 0.15, BmEscrowFee = 0.05, BmAdvanceDiscount = 0.10, BmInterceptDoor = 0.08, BmInterceptDrop = 0.03, BmInterceptCrackdown = 0.15;
+        public const double BmDropTheft = 0.12, BmScamSellerShare = 0.15, BmRugBase = 0.002, BmRugPerTenK = 0.004, BmRugMax = 0.05;
+        public const int BmAdvanceMinTrades = 30, BmDoorDays = 3, BmDropDays = 2, BmRugClosedDays = 10, BmSellerCount = 4;
         /// <summary>黑市人脉升级的价格。</summary>
         public const int BmUnlockPrice = 1500;
         /// <summary>单个金融违规事件记入的罪证上限。</summary>