Poinbase 只收 PSC、CRC、SPARK，新增 SPARK/CRC；DEX 稳定币对改为 StableSwap

- 钱包拦下往 Poinbase 充值地址转 CRT、CRA；资金页按上架币种列出
- 现货交易对跟着行情图选中的币（PSC/CRC、SPARK/CRC）
- CRT/CRC、CRA/CRC 用 StableSwap：手续费 0.04%、A=200；脱锚 A=20，崩盘 A=1 且深度四分之一
- 旧存档读档时补 SPARK/CRC、升级稳定币池

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

src/Decentralized/TerminalWindow.cs

@@ -422,9 +422,8 @@ namespace Decentralized
             Open();
         }
 
-        private static void TradeRows(CustomUIBuilder b, Venue venue)
+        private static void TradeRows(CustomUIBuilder b, Pool pool)
         {
-            foreach (var pool in Session.Data.Market.Pools.Where(x => x.Venue == venue))
             {
                 var p = pool;
                 b.AddLabel(L.T("trade.pair", p.Base, p.Quote, L.T("venue." + p.Venue)) + "  " + L.T("trade.price", Fmt.Num(p.Price)) + "  " + L.T("trade.fee", (p.Fee * 100).ToString("0.0#", CultureInfo.InvariantCulture)));
@@ -491,16 +490,19 @@ namespace Decentralized
             if (_poinTab == PoinTab.Funds) { FundsPage(b); return; }
             Columns(b, l =>
             {
-                CandleChart.AddPicker(l, "poin", Assets.PSC, Open, _picked);
+                CandleChart.AddPicker(l, "poin", Assets.PSC, Open, _picked, Exchange.Listed);
                 l.AddSeparator();
                 l.AddHeader(L.T("poin.account.h"));
                 Holdings(l, w, a => true);
                 if (w.Taint > 0.5) l.AddLabel(L.T("wallet.taint", Fmt.Credits(w.Taint)), "taint_note");
             }, r =>
             {
+                // 交易对跟着行情图选中的币（CRC 本身没有交易对，显示 PSC/CRC）
+                string sel = CandleChart.Selected("poin", Assets.PSC, Exchange.Listed);
+                var pair = d.Market.Find(Venue.Exchange, sel, Assets.CRC) ?? d.Market.Main;
                 r.AddHeader(L.T("trade.h"));
-                AmountRow(r, unit: d.Market.Main.Base);
-                TradeRows(r, venue);
+                AmountRow(r, unit: pair.Base);
+                TradeRows(r, pair);
             });
         }
 
@@ -529,8 +531,11 @@ namespace Decentralized
                     PledgerSkin.Pick(r, L.T("funds." + m.ToString().ToLowerInvariant()), mode == _fundsMode, () => { _fundsMode = mode; _message = null; Open(); }, _picked);
                 }
                 r.End();
+                // 入金只收 Poinbase 上架的币；出金另外列出账户里还有余额的其他币（旧存档里充进来的 CRT、CRA）
+                var coins = Exchange.Listed.Concat(_fundsMode == FundsMode.Send ? SwapCoins.Where(a => !Exchange.Listed.Contains(a) && w.Get(a) > 1e-9) : Enumerable.Empty<string>()).ToList();
+                if (!coins.Contains(_fundsAsset)) { _fundsAsset = Assets.CRC; _fundsBank = true; }
                 r.BeginRow(4f);
-                foreach (var c in SwapCoins)
+                foreach (var c in coins)
                 {
                     var coin = c;
                     PledgerSkin.Pick(r, coin, coin == _fundsAsset, () => { _fundsAsset = coin; if (coin != Assets.CRC) _fundsBank = false; Open(); }, _picked);