Stage 4: Web3 black market spot counter and Ponero desk

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

src/Decentralized.Domain/Tuning.cs

@@ -83,6 +83,14 @@ namespace Decentralized.Domain
         public const double CardValueFloor = 0.25;
         /// <summary>非主交易对每晚被拉回参考价的比例，及其深度占主交易对的比例。</summary>
         public const double SideArbRate = 0.5, SideDepthShare = 0.3;
+        /// <summary>Web3 黑市：开放所需黑市声望，中 / 高档货所需声望，现货每周刷新的天数与基础件数（每高 BmStockPerRep 声望多一件），现货溢价。</summary>
+        public const int BmOpenRep = 10, BmMidRep = 40, BmHighRep = 80, BmRefreshDays = 7, BmStockBase = 4;
+        public const double BmStockPerRep = 40, BmPremium = 0.30;
+        /// <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>
         public const double CrimeEventCap = 400;