终端窗口可调大小（默认 1200×900）与布局放宽；mod 设置：界面、剧情、难度

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

tests/Decentralized.Domain.Tests/Program.cs

@@ -1565,6 +1565,22 @@ internal static class Program
             }
         });
 
+        Test("mod 设置倍率：解析、封顶、挖矿产出按倍率", () =>
+        {
+            Check(Scales.Parse("×1.5") == 1.5 && Scales.Parse("×0.5") == 0.5 && Scales.Parse("x") == 1 && Scales.Parse(null) == 1, "解析档位文字");
+            foreach (var c in Scales.Choices) Check(Scales.Parse(c) > 0, "档位都能解析：" + c);
+            try
+            {
+                Scales.Risk = 2; Check(Math.Abs(Scales.R(0.3) - 0.6) < 1e-9 && Scales.R(0.8) == 1, "风险倍率乘概率并封顶 1");
+                Scales.Risk = 1;
+                var n = new Network();
+                Scales.Mining = 1; double a = n.Mine(100);
+                Scales.Mining = 2; double b2 = n.Mine(100);
+                Check(a > 0 && Math.Abs(b2 - 2 * a) < 1e-9, "挖矿产出按倍率");
+            }
+            finally { Scales.Risk = 1; Scales.Mining = 1; }
+        });
+
         Test("预测市场：先验概率", () =>
         {
             Check(Math.Abs(PredictMath.PurityAtLeast(8500, 8000, 8999) - 0.5) < 1e-9, "纯度 8500 以上一半");