Tiers drive physical traits and serial checks; guide item

Fans (1/2/3/3) and power connectors (6/8/8/8+8) follow the real chip's tier,
so a fake shows its real tier physically. Serial numbers (brand prefix, tier
code, factory code, four digits) are drawn on the sticker from card state;
the label bar gets power-and-fans and serial rows, eight in total, with a
framed panel. A graphics card appraisal guide item holds the rules.

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

src/Decentralized/UsedDealerClient.cs

@@ -19,7 +19,7 @@ namespace Decentralized
         {
             ModHook.OnGenerateCustomerNormal += OnGenerate;
             ModHelper.AddAppraisalItem(ModInfo.Id, Appraisal, Items.GpuId("RZX60"), 2, CreateForAppraisal, u => (int)CardValue.True(Items.ToUnit(u)),
-                Items.IsGpu, null, () => L.T("appraisal.gpu"));
+                Items.IsGpu, Items.Guide, () => L.T("appraisal.gpu"));
             ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Appraisal client (test)", () => Log.Guard("鉴定客户（测试）", () =>
             {
                 while (AppraisalRankHelper.GetRank() < 2) AppraisalRankHelper.Promote();