feat(ads/seo/release): v1.2.0 with live Google Ads, isolated ad profile, ads.txt, and SEO/AEO/GEO optimization

tests/Paca.Tests/Browser/ChromeParityMilestone13Tests.cs

@@ -0,0 +1,55 @@
+using System;
+using System.IO;
+using Paca.App;
+using Paca.Browser.Tabs;
+using Paca.Tests.Infrastructure;
+using Xunit;
+
+namespace Paca.Tests.Browser;
+
+public class ChromeParityMilestone13Tests
+{
+    [Fact]
+    public void ToggleTabMute_음소거_토글_정상_동작()
+    {
+        using var sta = StaDispatcher.Start();
+        WpfTestApp.Ensure(sta.Dispatcher);
+        sta.Invoke(() =>
+        {
+            var dataDir = Path.Combine(Path.GetTempPath(), $"vd_mute_{Guid.NewGuid():N}");
+            Environment.SetEnvironmentVariable("VD_DATA_DIR", dataDir);
+            try
+            {
+                var win = new MainWindow();
+                win.TabsManager.Tabs.Clear();
+                var tab = win.TabsManager.NewTab("https://site1.com");
+                Assert.False(tab.IsMuted);
+
+                win.ToggleTabMute(tab);
+                Assert.True(tab.IsMuted);
+
+                win.ToggleTabMute(tab);
+                Assert.False(tab.IsMuted);
+            }
+            finally
+            {
+                try { if (Directory.Exists(dataDir)) Directory.Delete(dataDir, true); } catch { }
+            }
+        });
+    }
+
+    [Fact]
+    public void MainWindow_XAML_IsMuted_트리거에_Visibility_Visible_포함()
+    {
+        var xamlPath = SourceTree.AppPath("MainWindow.xaml");
+        Assert.True(File.Exists(xamlPath), "MainWindow.xaml 파일이 존재해야 합니다.");
+        var xaml = File.ReadAllText(xamlPath);
+
+        // IsMuted 가 True 일 때 AudioIcon 이 화면에 유지되도록 Visibility Visible 세터가 있어야 함
+        Assert.Contains("<DataTrigger Binding=\"{Binding IsMuted}\" Value=\"True\">", xaml);
+        var idx = xaml.IndexOf("<DataTrigger Binding=\"{Binding IsMuted}\" Value=\"True\">");
+        var endIdx = xaml.IndexOf("</DataTrigger>", idx);
+        var block = xaml.Substring(idx, endIdx - idx + 14);
+        Assert.Contains("Property=\"Visibility\" Value=\"Visible\"", block);
+    }
+}