Black market in Web3 page, shelf UI, no dead drop, tech and GPU goods; rules moved to Web3 handbook

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

src/Decentralized/Items.cs

@@ -16,6 +16,7 @@ namespace Decentralized
         public const string Terminal = "pd_terminal";
         public const string Rig = "pd_rig";
         public const string Guide = "pd_gpu_guide";
+        public const string Web3Guide = "pd_web3_guide";
         public const string GpuPrefix = "pd_gpu_";
 
         public const string HealthTag = "PD_HEALTH";
@@ -38,6 +39,7 @@ namespace Decentralized
             dir.Add(Terminal, CreateTerminal);
             dir.Add(Rig, CreateRig);
             dir.Add(Guide, CreateGuide);
+            dir.Add(Web3Guide, CreateWeb3Guide);
             foreach (var spec in Hardware.Specs.Values.Where(s => !s.Asic && !s.Scrap))
             {
                 var s = spec;
@@ -77,6 +79,20 @@ namespace Decentralized
             return item;
         }
 
+        /// <summary>Web3 手册：银行、交易、混币器、黑市与 Ponero 的规则。界面上不放说明，规则都在这里。</summary>
+        private static GameItem CreateWeb3Guide()
+        {
+            var item = ItemDirectory.CreateEmptyItem(Web3Guide);
+            item.SetSpriteAndShapeFromMod(ModInfo.Id, "gpu_guide");
+            item.name = L.T("item.web3guide.name");
+            item.shortDescription = L.T("item.web3guide.desc");
+            item.unitValue = 0;
+            item.EnableTag(GeneralHelper.IMPORTANT_TAG);
+            item.EnableTag(TypeHelper.NOT_FOR_RESALE);
+            ModHelper.SetSource(item, ModInfo.Id, ModInfo.Name);
+            return item;
+        }
+
         // ---------- 显卡 ----------
 
         /// <summary>RTX70 → "RTX 70"，RX800 → "RX 800"。</summary>