Wallets: expected-days drain, copy/paste, three-column selectable balances, rename and destroy

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

src/Decentralized.Domain/Tuning.cs

@@ -139,7 +139,7 @@ namespace Decentralized.Domain
         /// <summary>硬件钱包：最多几个（含主钱包）；杰克逊博士的售价与每次进货上架的概率；Web3 商城的价格范围、每周平台现货上架的概率与件数上限；商城货里被投毒的比例。</summary>
         public const int WalletMax = 5, WalletJacksonPrice = 240, WalletMallMin = 150, WalletMallMax = 180, WalletMallQtyMax = 2;
         public const double WalletJacksonChance = 0.5, WalletMallChance = 0.5, WalletPoisonShare = 0.2;
-        /// <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：每晚概率从门槛处的 1 / SlowDays（平均 7 天）按价值线性升到 DrainFull 处的 1（当晚就转走）。</summary>
+        /// <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>主交易对（信用点一侧）的深度随天数增长。</summary>