Chain drama: fee tiers, congestion, mempool drops, address poisoning, clipboard hijack, phishing; selected-button style

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

src/Decentralized.Domain/ChainAddress.cs

@@ -41,5 +41,31 @@ namespace Decentralized.Domain
         }
 
         public static bool Same(string a, string b) => Normalize(a) == Normalize(b);
+
+        /// <summary>缩写（钱包列表里的样子）：0x + 主体前 3 位 + … + 校验位，例如 0x4b9…17。</summary>
+        public static string Short(string a)
+        {
+            a = Normalize(a);
+            return WellFormed(a) ? a.Substring(0, 5) + "…" + a.Substring(2 + BodyLength) : a;
+        }
+
+        /// <summary>
+        /// 相似地址（地址投毒、剪贴板木马用）：主体前 3 位和校验位都和原地址一样，缩写看起来完全相同，中间几位不同；本身是合法地址，
+        /// 币转过去就进了骗子手里。找不到校验位相同的就只保留前 3 位。
+        /// </summary>
+        public static string Lookalike(string a, Rng rng)
+        {
+            a = Normalize(a);
+            if (!Valid(a)) return Make(rng.NextUInt());
+            string prefix = a.Substring(2, 3), check = a.Substring(2 + BodyLength), body0 = a.Substring(2, BodyLength);
+            for (int i = 0; i < 20000; i++)
+            {
+                string body = prefix + (rng.NextUInt() & 0xFFF).ToString("x3");
+                if (body != body0 && Check(body) == check) return "0x" + body + check;
+            }
+            string fallback;
+            do fallback = prefix + (rng.NextUInt() & 0xFFF).ToString("x3"); while (fallback == body0);
+            return "0x" + fallback + Check(fallback);
+        }
     }
 }

src/Decentralized.Domain/Tuning.cs

@@ -142,6 +142,18 @@ namespace Decentralized.Domain
         /// <summary>被投毒的钱包：币的总价值达到 DrainMin 起，每晚有概率被转空；价值越高越快：期望天数从门槛处的 SlowDays（7 天）按价值线性降到 DrainFull 处的 1 天，每晚概率 = 1 / 期望天数。</summary>
         public const double WalletDrainMin = 3000, WalletDrainFull = 20000, WalletDrainSlowDays = 7;
 
+        /// <summary>转账手续费（信用点等值，按转出的币扣）：慢 / 普通 / 快；拥堵时乘以倍数。</summary>
+        public const double TxFeeSlow = 0.5, TxFeeNormal = 1.5, TxFeeFast = 4, TxCongestedFeeMult = 4;
+        /// <summary>网络拥堵：每晚开始拥堵的概率、持续天数上限；拥堵时普通档、慢档的确认间隔倍数，慢档被挤出内存池的概率。</summary>
+        public const double TxCongestionChance = 0.12, TxCongestedNormalSlow = 2, TxCongestedSlowSlow = 3.5, TxSlowDrop = 0.3;
+        public const int TxCongestionDaysMax = 2;
+        /// <summary>确认数：默认 3；金额（信用点）≥ MidValue 时 6，≥ BigValue 时 12。</summary>
+        public const int TxConfirmBase = 3, TxConfirmMid = 6, TxConfirmBig = 12;
+        public const double TxConfirmMidValue = 2000, TxConfirmBigValue = 10000;
+        /// <summary>地址投毒：每笔转出后被盯上的概率，0 币转入在 1–2 天后出现。剪贴板木马（被投毒的钱包）：粘贴时换成相似地址的概率。钓鱼公告：每晚出现的概率。</summary>
+        public const double TxPoisonChance = 0.35, TxHijackChance = 0.3, TxPhishChance = 0.05;
+        public const int TxPoisonDelayMax = 2;
+
         /// <summary>主交易对（信用点一侧）的深度随天数增长。</summary>
         public static double PoolDepth(int day) => PoolDepth0 * (1 + day / 60.0);
     }

src/Decentralized.Domain/TxRules.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+
+namespace Decentralized.Domain
+{
+    /// <summary>钱包里的一条转账记录：对方地址、币种、数量、哪天、转入还是转出。地址投毒的 0 币转入也记在这里。</summary>
+    public sealed class TxRecord
+    {
+        public string Addr, Asset;
+        public double Amount;
+        public int Day;
+        public bool In;
+    }
+
+    /// <summary>手续费档位：慢最便宜，网络拥堵时可能被挤出内存池；快最贵，拥堵时也照常确认。</summary>
+    public enum FeeTier { Slow, Normal, Fast }
+
+    /// <summary>链上转账的规则：手续费、需要的确认数、拥堵时慢档被丢弃的概率。</summary>
+    public static class TxRules
+    {
+        /// <summary>手续费（信用点等值，按转出的币扣）：档位基础价 × 拥堵倍数。</summary>
+        public static double FeeCredits(FeeTier t, bool congested) =>
+            (t == FeeTier.Slow ? Tuning.TxFeeSlow : t == FeeTier.Normal ? Tuning.TxFeeNormal : Tuning.TxFeeFast) * (congested ? Tuning.TxCongestedFeeMult : 1);
+
+        /// <summary>需要的确认数：金额越大越多。</summary>
+        public static int Confirmations(double valueCredits) =>
+            valueCredits >= Tuning.TxConfirmBigValue ? Tuning.TxConfirmBig : valueCredits >= Tuning.TxConfirmMidValue ? Tuning.TxConfirmMid : Tuning.TxConfirmBase;
+
+        /// <summary>每次确认的间隔倍数：拥堵时慢档、普通档变慢。</summary>
+        public static double Slowdown(FeeTier t, bool congested) => !congested ? 1 : t == FeeTier.Fast ? 1 : t == FeeTier.Normal ? Tuning.TxCongestedNormalSlow : Tuning.TxCongestedSlowSlow;
+
+        /// <summary>拥堵时慢档交易被挤出内存池的概率（交易作废，手续费照扣）。</summary>
+        public static double DropChance(FeeTier t, bool congested) => congested && t == FeeTier.Slow ? Tuning.TxSlowDrop : 0;
+
+        /// <summary>转账记录最多保留几条。</summary>
+        public const int HistoryMax = 20;
+
+        public static void Record(List<TxRecord> history, TxRecord r)
+        {
+            history.Insert(0, r);
+            if (history.Count > HistoryMax) history.RemoveRange(HistoryMax, history.Count - HistoryMax);
+        }
+    }
+}

src/Decentralized.Domain/Wallet.cs

@@ -22,6 +22,9 @@ namespace Decentralized.Domain
         public string Name;
         /// <summary>玩家起的名字；空时用默认名。</summary>
         public string Label;
+        /// <summary>转账记录（最新的在前），PLEDGER 发送页的"最近"列表从这里取。</summary>
+        public List<TxRecord> History = new List<TxRecord>();
+
         /// <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;