Phase 1 cleanup: stale unlock text, unused code, README layout

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

tests/Decentralized.Domain.Tests/Program.cs

@@ -154,8 +154,7 @@ internal static class Program
             Check(seen.Count >= 60, $"抽样见到 {seen.Count} 种不同组合（上限 243）");
             Check(Hardware.Specs["RZX60"].Price == 220 && Hardware.Specs["RZX90"].Price == 5000 && Hardware.Specs["RZ900"].Price == 4000, "价格已抬高到约 1.8 倍");
             var u = new Unit { Model = "RZX90", FakeOf = "RZX60", Health = 80 };
-            Check(CardValue.True(u) == CardValue.Of("RZX60", 80) && CardValue.Quoted(u, 80) == CardValue.Of("RZX90", 80), "真实价值按芯片型号，标称价按标称型号");
-            Check(CardValue.Quoted(u, 80) > CardValue.True(u) * 8, $"假 RZX 90 的标称价 {CardValue.Quoted(u, 80)} 远高于真值 {CardValue.True(u)}");
+            Check(CardValue.True(u) == CardValue.Of("RZX60", 80) && CardValue.Of("RZX90", 80) > CardValue.True(u) * 8, "真实价值按芯片型号，标称型号的价远高于真值");
             var worn = new Unit { Model = "RZX70", Health = 100, Look = new CardLook { Fan = 2, Fingers = 2, Bracket = 1, Sticker = 2 } };
             Check(CardValue.True(worn) == (long)Math.Round(800 * (1 - 0.12 - 0.12 - 0.02 - 0.06)), "各标签折扣相加进真实价值：风扇缺角 + 金手指氧化 + 划痕 + 封条缺失");
             var clean = new Unit { Model = "RZX70", Health = 80 };