Stage 7.3: NPC scams (wicks, phishing airdrops, rug pools, fake support, forged transfers)

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

src/Decentralized.Domain/Market.cs

@@ -23,6 +23,31 @@ namespace Decentralized.Domain
         public double OpenPrice = Tuning.PscStartPrice;
         /// <summary>玩家自己的现货大单把价格推高（正）或压低（负）的对数幅度，每晚随价格回归一起衰减。操纵检出和预测盘用它估"没有玩家时的价格"。</summary>
         public double PlayerPush;
+        /// <summary>今天的插针（对数幅度，0 = 没有）和当晚回去的比例（0 = 真跌真涨）。</summary>
+        public double Wick, WickBack;
+
+        /// <summary>夜间结算开始时：插针按比例回去（结算、预测盘读的是回去后的价格）。</summary>
+        public void UndoWick(int day)
+        {
+            if (Wick == 0) return;
+            Main.SetPrice(Price * Math.Exp(-Wick * WickBack), Tuning.PoolDepth(day));
+            Wick = 0; WickBack = 0;
+        }
+
+        /// <summary>
+        /// 插针：开门后价格瞬间被打到一边（大户扫强平、砸盘吸筹），大部分当晚回去，一部分是真的。
+        /// 标记价用开门前的价格和收盘价平均，强平只吃一半。返回幅度（0 = 今天没有）。
+        /// </summary>
+        public double TryWick(Rng rng, int day)
+        {
+            Wick = 0; WickBack = 0;
+            if (!rng.Chance(Tuning.WickChance)) return 0;
+            double size = rng.Range(Tuning.WickMin, Tuning.WickMax) * (rng.Chance(0.5) ? 1 : -1);
+            Wick = size;
+            WickBack = rng.Chance(Tuning.WickReal) ? 0 : rng.Range(Tuning.WickRevertMin, Tuning.WickRevertMax);
+            Main.SetPrice(Price * Math.Exp(size), Tuning.PoolDepth(day));
+            return size;
+        }
         public double NeutralPrice => Price * Math.Exp(-PlayerPush);
         /// <summary>被查概率：推价幅度（绝对值）超过 ManipFree 后随幅度升高。</summary>
         public static double ManipChance(double push)
@@ -113,6 +138,7 @@ namespace Decentralized.Domain
         /// </summary>
         public void Night(ICollection<MarketEvent> active, Rng rng, int day, Func<string, double> stablePrice)
         {
+            if (Wick != 0) { Main.SetPrice(Price * Math.Exp(-Wick * WickBack), Tuning.PoolDepth(day)); Wick = 0; WickBack = 0; }
             PlayerPush *= 1 - Tuning.Revert;
             Sentiment *= Math.Exp(Tuning.SentimentKappa * -Math.Log(Sentiment) + rng.Gauss() * Tuning.SentimentVol);
             double anchor = Anchor(active);