PSC daily candle history and pixel candlestick chart

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

src/Decentralized/Session.cs

@@ -39,6 +39,8 @@ namespace Decentralized
         public Ponzi Ponzi = new Ponzi();
         /// <summary>NPC 骗局：空投与授权、第三方收益池、骗子地址。</summary>
         public Scams Scams = new Scams();
+        /// <summary>日 K 历史（PSC，Poinbase 主池价格）。</summary>
+        public CandleBook Candles = new CandleBook();
         /// <summary>今天被伪造转账骗走的（晨间日志用）：顾客名 + 信用点。</summary>
         public List<string> FakePaidToday = new List<string>();
         /// <summary>近几天的 gas 指数（每晚记明天的），情报线索里显示；最近一份局势简报。</summary>