fix: 圈风/门风/单钓将/四归一加_fanConfig守卫 + 精牌显示 + TileName修复

问题1: 圈风/门风/单钓将/四归一在南昌武汉等非Guobiao玩法中误生成
  修复: 4个新识别器加 _fanConfig.ContainsKey() 守卫,只有配了才生成
  Guobiao DSL 补充4个番型定义(圈风2/门风2/四归一2/单钓将1)

问题2: 翻牌定精信息未在demo显示
  修复: RenderDeal() 显示精牌(翻牌+正精+副精)

问题3: TileName?{tile}→ToStringCore(tile)
  修复: 带🀫前缀的数字牌显示 '🀫3万' 而非 '🀫?21'

Demo/Program.cs

@@ -237,6 +237,16 @@ void RenderDeal(MahjongRoom room)
     foreach (var p in state.PlayerOrder)
         Console.WriteLine($"  {p}{(p == state.Dealer ? " (庄)" : "")}: {state.Hands[p].Count}张");
     Console.WriteLine($"  牌墙: {state.Deck.Count} 张");
+    // Show wildcard info if configured
+    var wc = state.Wildcards;
+    if (wc.ConfiguredWildcards.Count > 0)
+    {
+        var wcStr = string.Join(" ", wc.ConfiguredWildcards.Select(t => MahjongTile.ToString(t, wc)));
+        if (wc.RevealedTile.HasValue)
+            Console.WriteLine($"  🀫 精: {wcStr} (翻牌: {MahjongTile.ToString(wc.RevealedTile.Value)})");
+        else
+            Console.WriteLine($"  🀫 宝牌: {wcStr}");
+    }
     Console.WriteLine($"  (手牌已洗牌，按 Enter 查看牌局)");
 }
 

RuleEngine/Core/MahjongTile.cs

@@ -52,11 +52,11 @@ public static class MahjongTile
     }
 
     private static string TileName(int tile) => tile switch
-    {
-        31 => "东", 32 => "南", 33 => "西", 34 => "北",
-        35 => "中", 36 => "发", 37 => "白",
-        _ => $"?{tile}"
-    };
+        {
+            31 => "东", 32 => "南", 33 => "西", 34 => "北",
+            35 => "中", 36 => "发", 37 => "白",
+            _ => ToStringCore(tile)
+        };
 
     /// 0=万, 1=条, 2=筒, 3=字, 4=花, 5=宝牌
     public static int Suit(int tile)

RuleEngine/Patterns/MeldsSolver.cs

@@ -776,22 +776,24 @@ public class MeldsSolver
                 fans.Add("地胡");
 
             // 圈风刻: kezi matching current wind round (e.g. 东风圈→有东刻子)
-            if (keziTiles.Any(t => t == state.WindRound))
+            if (_fanConfig.ContainsKey("圈风") && keziTiles.Any(t => t == state.WindRound))
                 fans.Add("圈风");
-            // 门风刻: kezi matching player's seat wind (applies per-hand, identified by state owner)
-            foreach (var (player, seatWind) in state.SeatWinds)
-                if (keziTiles.Any(t => t == seatWind))
-                    fans.Add("门风");
+            // 门风刻: kezi matching player's seat wind
+            if (_fanConfig.ContainsKey("门风") && state.SeatWinds.Values.Any(sw => keziTiles.Any(t => t == sw)))
+                fans.Add("门风");
 
             // 单钓将: detected at self-draw time (single tile→pair completion)
-            if (state.IsSingleWait) fans.Add("单钓将");
+            if (_fanConfig.ContainsKey("单钓将") && state.IsSingleWait) fans.Add("单钓将");
         }
 
         // 四归一: 4 identical numbered tiles used across 2+ melds (not in a single kong)
-        var tileCounts = allTiles.Where(t => MahjongTile.IsNumbered(t)).GroupBy(t => t);
-        bool hasSiGuiYi = tileCounts.Any(g =>
-            g.Count() >= 4 && !melds.Any(m => m.Type == "kezi" && m.Tiles.Contains(g.Key) && m.Tiles.All(x => x == g.Key)));
-        if (hasSiGuiYi) fans.Add("四归一");
+        if (_fanConfig.ContainsKey("四归一"))
+        {
+            var tileCounts4 = allTiles.Where(t => MahjongTile.IsNumbered(t)).GroupBy(t => t);
+            bool hasSiGuiYi = tileCounts4.Any(g =>
+                g.Count() >= 4 && !melds.Any(m => m.Type == "kezi" && m.Tiles.Contains(g.Key) && m.Tiles.All(x => x == g.Key)));
+            if (hasSiGuiYi) fans.Add("四归一");
+        }
 
         // 鸡胡: base-level fan when no other fan with positive value exists.
         // A fan has positive value if it's in _fanConfig with base_fan>0,

dsl-examples/guobiao.yaml

@@ -75,9 +75,14 @@ fan_types:
   - { name: 断幺九, base_fan: 2, level: 2 }
   - { name: 平和, base_fan: 2, level: 2 }
   - { name: 门前清, base_fan: 2, level: 2 }
+  # 2番
+  - { name: 圈风, base_fan: 2, level: 2 }
+  - { name: 门风, base_fan: 2, level: 2 }
+  - { name: 四归一, base_fan: 2, level: 2 }
   # 1番
   - { name: 缺一门, base_fan: 1, level: 1 }
   - { name: 无字, base_fan: 1, level: 1 }
+  - { name: 单钓将, base_fan: 1, level: 1 }
   # 兜底
   - { name: 鸡胡, base_fan: 1, level: 0 }