Cards: appearance follows wear, hash depends on fan and contacts, seller confrontation

Fan, contact and scratch levels are recomputed from health and a per-card
seed, so a card looks older as it wears. Fan and contacts scale hashrate.
Each inspection-tray detail now maps to exactly one dimension value. Quoting
dealers price the card as if its condition were fine; the player points out
fan, contacts, bracket, print or sticker in the tray to take the matching
discount or expose a fake (a wrong accusation costs reputation like the
vanilla confrontation). Unowned cards show a coarse grade and rated specs.

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

tests/Decentralized.Domain.Tests/Program.cs

@@ -137,8 +137,8 @@ internal static class Program
             for (int i = 0; i < n; i++)
             {
                 var real = CardLook.Generate(rng, 100, false);
-                var oldReal = CardLook.Generate(rng, 30, false);
-                var fake = CardLook.Generate(rng, 60, true);
+                var oldReal = CardLook.Generate(rng, 20 + (i % 40), false);
+                var fake = CardLook.Generate(rng, 20 + (i % 80), true);
                 if (real.HasFakeSign || oldReal.HasFakeSign) realSign++;
                 if (!fake.HasFakeSign) fakeNoSign++;
                 fakeSigns += (fake.Bracket == 2 ? 1 : 0) + (fake.Print != 0 ? 1 : 0) + (fake.Sticker == 1 ? 1 : 0);
@@ -340,27 +340,52 @@ internal static class Program
             Check(Near(dr.Received, 900 * (1 - Tuning.ExchangeFee), 1e-6), "CRC 脱锚时按市价兑出");
         });
 
-        Test("二手贩子：老实人没有假卡；骗子按标称价九折报价；假卡芯片至少便宜一半；买下后只值真实价值", () =>
+        Test("二手贩子：老实人不报价；中间商加价；骗子夹带假卡；指出问题按维度扣价、拆穿假货按真实芯片算", () =>
         {
             var rng = new Rng(7);
             int fakes = 0, cards = 0;
             for (int i = 0; i < 300; i++)
                 foreach (var c in UsedDealers.Cards(DealerKind.Honest, 40, rng))
-                    Check(c.FakeOf == null && c.MarkupPct == 0, "老实人的卡是真卡且按真实价值");
+                    Check(c.FakeOf == null && !c.Quoted, "老实人的卡是真卡且不报价");
             for (int i = 0; i < 300; i++)
                 foreach (var c in UsedDealers.Cards(DealerKind.Scammer, 40, rng))
                 {
                     cards++;
                     if (c.FakeOf == null) continue;
                     fakes++;
-                    var u = new Unit { Model = c.Model, FakeOf = c.FakeOf, Health = c.Health };
                     Check(Hardware.Specs[c.FakeOf].Price * 2 <= Hardware.Specs[c.Model].Price, "假卡的芯片至少便宜一半");
-                    long shown = (long)Math.Round(CardValue.True(u) * (1 + c.MarkupPct / 100.0));
-                    Check(Math.Abs(shown - CardValue.Of(c.Model, c.Health) * UsedDealers.ScamDiscount) <= CardValue.True(u) * 0.01 + 1, "柜台价约等于标称价九折");
-                    Check(c.MarkupPct > 0, "假卡的柜台价高于真实价值");
                 }
             Check(fakes > cards * 0.2 && fakes < cards * 0.5, $"骗子的假卡占两成多（入门卡便宜到没法冒充）：{fakes}/{cards}");
             Check(UsedDealers.Pool(5).All(m => Dealer.Basic.Contains(m)) && UsedDealers.Pool(30).Contains("RZX90"), "型号按天数放开");
+            // 报价：假 RZX 70（芯片 RZX 50）、健康 60、风扇缺角、金手指氧化
+            var u = new Unit { Model = "RZX70", FakeOf = "RZX50", Health = 60, Look = new CardLook { Fan = 2, Fingers = 2 } };
+            long label = CardValue.Of("RZX70", 60), real = CardValue.True(u);
+            Check(CardValue.Quote(u, 0, 0, false) == (long)Math.Round(label * 0.9), "没拆穿的假卡：标称型号的价打九折，外观问题还没指出就不扣");
+            Check(CardValue.Quote(u, 0, CardLook.DimFan, false) == (long)Math.Round(label * 0.88 * 0.9), "指出风扇缺角：扣 12%");
+            Check(CardValue.Quote(u, 0, CardLook.AllDims, true) == real, "外观问题都指出并拆穿假货：报价等于真实价值");
+            var honest = new Unit { Model = "RZX70", Health = 60, Look = new CardLook { Fan = 1 } };
+            Check(CardValue.Quote(honest, 8, 0, false) == (long)Math.Round(CardValue.Of("RZX70", 60) * 1.08), "中间商：加价 8%，外观问题没指出就不扣");
+            Check(CardValue.Quote(honest, 8, CardLook.AllDims, false) == (long)Math.Round(CardValue.Of("RZX70", 60) * 0.96 * 1.08), "指出积灰：扣 4%");
+        });
+
+        Test("外观随损耗重算：越旧外观越差；种子固定；算力受风扇与金手指影响", () =>
+        {
+            var rng = new Rng(5);
+            int worse = 0, total = 400;
+            for (int i = 0; i < total; i++)
+            {
+                var look = CardLook.Generate(rng, 100, false);
+                var a = look.Appearance(100); var b = look.Appearance(20);
+                Check(b.Fan >= a.Fan && b.Fingers >= a.Fingers && b.Bracket >= a.Bracket, "健康度下降时外观只会变差");
+                if (b.Fan + b.Fingers + b.Bracket > a.Fan + a.Fingers + a.Bracket) worse++;
+                Check(look.Appearance(60).Encode() == look.Appearance(60).Encode(), "同一健康度外观固定");
+            }
+            Check(worse > total * 0.9, $"健康度从 100 掉到 20，九成以上的卡外观变差：{worse}/{total}");
+            var fake = CardLook.Generate(rng, 80, true);
+            Check(fake.HasFakeSign && fake.Appearance(10).HasFakeSign, "假卡的破绽不随健康度变化");
+            var clean = new Unit { Model = "RZX70", Health = 100 };
+            var bad = new Unit { Model = "RZX70", Health = 100, Look = new CardLook { Fan = 2, Fingers = 2 } };
+            Check(Near(bad.Hash(ModuleBonus.None) / clean.Hash(ModuleBonus.None), 0.92 * 0.94, 1e-9), "风扇缺角 + 金手指氧化：算力 ×0.92 ×0.94");
         });
 
         Test("杰克逊博士：没有矿架必上一个；基础卡每次两张；进阶第 10 天起、旗舰第 30 天起；特供货第 20 天起必有旗舰", () =>