Ponero fee 6%/cap 1000, mixer fee 3%, brand-new GPUs on the black market

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

src/Decentralized/Items.cs

@@ -126,6 +126,7 @@ namespace Decentralized
         {
             var item = ModHelper.SpawnItem(GpuId(model));
             var u = new Unit { Model = model, FakeOf = fakeOf, Health = health, Look = CardLook.Generate(rng, health, fakeOf != null) };
+            if (health >= 100 && fakeOf == null) u.Look.Sticker = 0;   // 全新卡：封条完好
             Store(item, u);
             if (seller != null)
             {