Stage 4: honeypot, seller busts, controlled delivery; mining report moved into Web3 page

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

src/Decentralized.Domain/BmOrders.cs

@@ -38,11 +38,22 @@ namespace Decentralized.Domain
         /// <summary>付款时留在卖家那边的污点与成本：退款时一并还回，免得"付脏币再退款"洗钱。</summary>
         public double Taint, Basis;
         public int PlacedDay, DueDay;
+        /// <summary>被截获后执法选择了上门：到货时快递员是执法人员，签收即记罪证。</summary>
+        public bool Controlled;
         public OrderState State = OrderState.Pending;
         /// <summary>终态的原因：done / scam / rug / intercept / theft / refund。</summary>
         public string Why;
     }
 
+    /// <summary>一笔会被追查的交易：到期日、金额（信用点）、来源（honeypot / seller / controlled）。</summary>
+    public sealed class BmTrap
+    {
+        public int Day;
+        public double Amount;
+        public string Why;
+        public string Item;
+    }
+
     /// <summary>夜间发生的订单事件，供日志与新闻使用。</summary>
     public sealed class BmEvent
     {
@@ -59,6 +70,13 @@ namespace Decentralized.Domain
         public List<string> Forum = new List<string>();
         /// <summary>平台跑路后关闭到这一天（含）。</summary>
         public int ClosedUntil = -1;
+        /// <summary>执法接管平台的最后一天（含）；期间的交易之后会被追查。</summary>
+        public int HoneypotUntil = -1;
+        public List<BmTrap> Traps = new List<BmTrap>();
+
+        public bool Honeypot(int day) => day <= HoneypotUntil;
+
+        public static double HoneypotChance(int secRep) => Math.Min(Tuning.BmHoneypotMax, Tuning.BmHoneypotBase + Math.Max(0, secRep) * Tuning.BmHoneypotPerSecRep);
 
         private static readonly string[] NameA = { "rat", "grey", "static", "null", "dust", "iron", "pale", "wire", "salt", "ghost" };
         private static readonly string[] NameB = { "king", "mule", "broker", "hand", "cat", "fox", "tooth", "lamp", "nine", "dealer" };
@@ -122,6 +140,7 @@ namespace Decentralized.Domain
                 Taint = taint, Basis = basis, PlacedDay = day, DueDay = day + Tuning.BmDoorDays,
             };
             Orders.Add(o);
+            if (Honeypot(day)) Traps.Add(new BmTrap { Day = day + Tuning.BmTrapDelay, Amount = credits, Why = "honeypot", Item = l.Item });
             return o;
         }
 
@@ -132,9 +151,10 @@ namespace Decentralized.Domain
         }
 
         /// <summary>每晚推进订单：平台跑路、到期的订单（卖家跑路、被截获、死投被挖走）、转入可取状态。镇压期间到期顺延一天。</summary>
-        public List<BmEvent> Night(int day, bool crackdown, Wallet w, Rng rng)
+        public List<BmEvent> Night(int day, bool crackdown, Wallet w, Rng rng, int secRep = 0)
         {
             var ev = new List<BmEvent>();
+            if (!Honeypot(day) && rng.Chance(HoneypotChance(secRep))) { HoneypotUntil = day + Tuning.BmHoneypotDays; if (!Forum.Contains("easy")) Forum.Add("easy"); }
             if (ClosedUntil == day) ev.Add(new BmEvent { Kind = "reopen" });
             if (!Closed(day) && Orders.Any(o => o.State == OrderState.Pending) && rng.Chance(RugChance))
             {
@@ -158,14 +178,39 @@ namespace Decentralized.Domain
                     continue;
                 }
                 double ic = Tuning.BmInterceptDoor + (crackdown ? Tuning.BmInterceptCrackdown : 0);
-                if (rng.Chance(ic)) { o.State = OrderState.Lost; o.Why = "intercept"; ev.Add(new BmEvent { Kind = "intercept", Order = o, Amount = o.Price }); continue; }
+                if (rng.Chance(ic))
+                {
+                    if (rng.Chance(Tuning.BmControlled)) { o.Controlled = true; o.State = OrderState.Ready; ev.Add(new BmEvent { Kind = "ready", Order = o }); continue; }
+                    o.State = OrderState.Lost; o.Why = "intercept"; ev.Add(new BmEvent { Kind = "intercept", Order = o, Amount = o.Price }); continue;
+                }
                 o.State = OrderState.Ready;
                 ev.Add(new BmEvent { Kind = "ready", Order = o });
             }
+            // 卖家落网：近期成交过的卖家各有小概率被抓，他们留存的订单记录之后会连累买家
+            foreach (var name in Orders.Where(x => x.State == OrderState.Done && day - x.DueDay <= 14).Select(x => x.Seller).Distinct().ToList())
+            {
+                if (!rng.Chance(Tuning.BmSellerBust)) continue;
+                foreach (var o in Orders.Where(x => x.State == OrderState.Done && x.Seller == name && day - x.DueDay <= 14))
+                    Traps.Add(new BmTrap { Day = day + Tuning.BmTrapDelay, Amount = o.Price, Why = "seller", Item = o.Item });
+                Forum.Add("busted:" + name);
+            }
+            foreach (var t in Traps.Where(x => day >= x.Day).ToList())
+            {
+                Traps.Remove(t);
+                ev.Add(new BmEvent { Kind = "trap", Amount = t.Amount, Order = new BmOrder { Item = t.Item, Seller = t.Why } });
+            }
             Orders.RemoveAll(o => o.State != OrderState.Pending && o.State != OrderState.Ready && day - o.DueDay > 14);
             return ev;
         }
 
+        /// <summary>受控交付：签收则当场记罪证（返回金额）并查封，不交货；拒签则损失货款，不留罪证。</summary>
+        public double Sign(BmOrder o, bool accept)
+        {
+            o.State = OrderState.Lost;
+            o.Why = accept ? "seized" : "refused";
+            return accept ? o.Price : 0;
+        }
+
         public void Deliver(BmOrder o) { o.State = OrderState.Done; o.Why = "done"; }
 
         public IEnumerable<BmOrder> Ready => Orders.Where(o => o.State == OrderState.Ready);