Multiple hardware wallets: per-wallet devices, wallets page, Poinbase custodial account, PLEDGER item with supply-chain poisoning

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

src/Decentralized.Domain/Wallet.cs

@@ -18,6 +18,27 @@ namespace Decentralized.Domain
         public double Basis;
         /// <summary>被执法标记。</summary>
         public bool Flagged;
+        /// <summary>显示名（终端钱包页、硬件钱包标题）。</summary>
+        public string Name;
+        /// <summary>硬件钱包被动过手脚（供应链投毒）：别人手里有助记词。玩家看不到。</summary>
+        public bool Poisoned;
+
+        /// <summary>被投毒的钱包今晚被转空的概率：总价值不到门槛时为 0，越多越高（1–7 天）。</summary>
+        public static double DrainChance(double value)
+        {
+            if (value < Tuning.WalletDrainMin) return 0;
+            double slow = 1 / Tuning.WalletDrainSlowDays, t = Math.Min(1, (value - Tuning.WalletDrainMin) / (Tuning.WalletDrainFull - Tuning.WalletDrainMin));
+            return slow + (1 - slow) * t;
+        }
+
+        /// <summary>转空：全部余额（含冻结的）连同污点、成本一起转走，返回转走的价值（信用点）。</summary>
+        public double Drain(Func<string, double> price)
+        {
+            double v = Value(price);
+            Balances.Clear(); Frozen.Clear(); FrozenUntil.Clear(); BuyQty.Clear(); BuyCost.Clear();
+            Taint = 0; Basis = 0;
+            return v;
+        }
 
         /// <summary>买入记录：每种币买入的数量与花费（信用点等值），用来显示买入均价。卖出或转出时按比例减少。</summary>
         public Dictionary<string, double> BuyQty = new Dictionary<string, double>(), BuyCost = new Dictionary<string, double>();