fix: --check输出区分能力注册 vs 规则覆盖, 不再误导

ValidateRuleCompliance 新增3项检查:
- 鸡胡缺失警告 (fan_types 应配鸡胡兜底)
- base_fan=0 番型警告 (标记番型需更高番型覆盖)
- 番型识别率统计 (DSL中有多少引擎能识别)

输出变更:
- 'DSL适配率' → '能力注册' (准确描述含义)
- 新增 '规则合规检查通过' (warnings=0时显示)
- --check末尾加警告: 能力注册≠完整规则覆盖

Demo/Program.cs

@@ -40,15 +40,19 @@ try
     rules = loader.Load(dslPath);
     var (r, m, pct) = caps.ComputeCoverage(rules.Requires);
     string status = pct == 100 ? "✅" : "⚠";
-    Console.WriteLine($"{status} DSL 适配率: {m}/{r} ({pct}%) — {rules.Game.Name}");
+    Console.WriteLine($"{status} 能力注册: {m}/{r} ({pct}%) — {rules.Game.Name}");
 
     // Rule-level compliance check (finer granularity than capability check)
     var warnings = caps.ValidateRuleCompliance(rules);
     if (warnings.Count > 0)
     {
-        Console.WriteLine($"  ⚠ {warnings.Count} 条规则引擎无法完全执行:");
+        Console.WriteLine($"  ⚠ {warnings.Count} 条规则警告:");
         foreach (var w in warnings)
-            Console.WriteLine($"    • {w}");
+            Console.WriteLine($"{w}");
+    }
+    else
+    {
+        Console.WriteLine($"  ✅ 规则合规检查通过");
     }
 
     if (pct < 100)
@@ -67,7 +71,7 @@ catch (Exception ex)
 
 if (checkOnly)
 {
-    Console.WriteLine($"✅ 仅验证模式 — 未运行牌局");
+    Console.WriteLine($"\n✅ 仅验证模式 — 未运行牌局\n   注意: 能力注册≠完整规则覆盖, 需逐条验证玩法规则");
     return 0;
 }
 

RuleEngine/Dsl/DslLoader.cs

@@ -113,6 +113,20 @@ public class CapabilityRegistry
         if (rules.Scoring.Mode != "fan_table")
             warnings.Add($"scoring.mode={rules.Scoring.Mode} 引擎仅支持fan_table→忽略");
 
+        // 鸡胡 兜底番型: DSL应配置以避免FanValue=0
+        if (!rules.FanTypes.Any(f => f.Name == "鸡胡"))
+            warnings.Add("fan_types 缺少鸡胡兜底番型→建议添加 { name: 鸡胡, base_fan: 1 }");
+
+        // 番型值检查: base_fan=0 的标记番型需有更高番型覆盖
+        var zeroFans = rules.FanTypes.Where(f => f.BaseFan <= 0).ToList();
+        if (zeroFans.Count > 0)
+            warnings.Add($"有 {zeroFans.Count} 个番型 base_fan=0 ({string.Join(", ", zeroFans.Select(f => f.Name))})→仅当被更高番型排除时有用");
+
+        // 番型识别率: DSL 中多少番型引擎能识别
+        int recognized = rules.FanTypes.Count(f => enginePatterns.Contains(f.Name));
+        if (recognized < rules.FanTypes.Count)
+            warnings.Add($"番型识别率: {recognized}/{rules.FanTypes.Count}→{rules.FanTypes.Count - recognized} 个番型得分为0");
+
         return warnings;
     }
 }