Hardware wallet window: invoices paid from PLEDGER, checksummed addresses, DEX signing, block confirmation animation

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

src/Decentralized/Session.cs

@@ -35,9 +35,11 @@ namespace Decentralized
 
         public string Address(string key)
         {
-            if (!Addresses.TryGetValue(key, out var a)) { a = "0x" + Rng.NextUInt().ToString("x8").Substring(0, 6); Addresses[key] = a; }
+            if (!Addresses.TryGetValue(key, out var a) || !ChainAddress.Valid(a)) { a = ChainAddress.Make(Rng.NextUInt()); Addresses[key] = a; }
             return a;
         }
+        /// <summary>链上的区块高度：每签一笔交易往上走几块。</summary>
+        public long Block = 1204331;
         /// <summary>当天用币付款的成交额（信用点），夜间清零。</summary>
         public double CoinSalesToday;
     }
@@ -64,6 +66,8 @@ namespace Decentralized
             catch (Exception ex) { Log.Error($"读取存档数据失败，重新开始：{ex.Message}"); }
             if (Data == null) Data = new SaveData();
             if (Data.Market == null) Data.Market = Market.CreateDefault(StoreStation.GetDayCounter());
+            // 旧存档里的商家地址没有校验位：换成合法地址
+            foreach (var s in Data.Black.Sellers) if (!ChainAddress.Valid(s.Name)) s.Name = ChainAddress.Make(Data.Rng.NextUInt());
             Log.Info($"状态已载入（第 {Data.Day} 天，PSC {Data.Market.Price:0.00}）");
         }