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/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);
     }