手册数值改为占位符，渲染时从 Tuning 取值；加规则文件和测试

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

src/Decentralized/HandbookWindow.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
+using Decentralized.Domain;
 
 namespace Decentralized
 {
@@ -41,7 +42,7 @@ namespace Decentralized
 
         public static void Open()
         {
-            var chapters = L.T("guide.web3.text").Replace("¶", "\n\n").Split('§');
+            var chapters = TuningText.Render(L.T("guide.web3.text")).Replace("¶", "\n\n").Split('§');
             if (_chapter >= chapters.Length) _chapter = 0;
             var b = CustomUIManager.Window(Id, L.T("item.web3guide.name"));
             if (b == null) return;