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

tests/Paca.Tests/App/DesktopRemoteTabSyncGateTests.cs

@@ -0,0 +1,64 @@
+using System;
+using System.IO;
+using System.Text.Json;
+using Paca.Mobile.Core;
+using Paca.Tests.Infrastructure;
+using Xunit;
+
+namespace Paca.Tests.App;
+
+/// <summary>
+/// Gate 161 ~ 163: 데스크톱 ↔ 모바일 원격 탭 동기화 및 원클릭 웹 브라우징 릴레이 기계적 검증
+/// </summary>
+public class DesktopRemoteTabSyncGateTests
+{
+    [Fact]
+    public void Gate161_RemoteTabs_Models_And_Serialization()
+    {
+        var tab = new RemoteTabDto(
+            Id: "tab-101",
+            Title: "4K Nature Landscape - YouTube",
+            Url: "https://www.youtube.com/watch?v=12345",
+            IsActive: true
+        );
+
+        var json = JsonSerializer.Serialize(tab);
+        var deserialized = JsonSerializer.Deserialize<RemoteTabDto>(json);
+
+        Assert.NotNull(deserialized);
+        Assert.Equal("tab-101", deserialized.Id);
+        Assert.Equal("4K Nature Landscape - YouTube", deserialized.Title);
+        Assert.Equal("https://www.youtube.com/watch?v=12345", deserialized.Url);
+        Assert.True(deserialized.IsActive);
+    }
+
+    [Fact]
+    public void Gate162_ServerHost_Tabs_Endpoints_Registered()
+    {
+        var serverHostPath = Path.Combine(SourceTree.Root, "src", "Paca.Server", "ServerHost.cs");
+        Assert.True(File.Exists(serverHostPath), "ServerHost.cs must exist");
+
+        var code = File.ReadAllText(serverHostPath);
+
+        Assert.Contains("/api/tabs", code);
+        Assert.Contains("/api/tabs/open", code);
+    }
+
+    [Fact]
+    public void Gate163_ApiClient_RemoteTabs_Methods_Implemented()
+    {
+        var mobileDir = Directory.Exists(Path.Combine(SourceTree.Root, "src", "Paca.Mobile"))
+            ? Path.Combine(SourceTree.Root, "src", "Paca.Mobile")
+            : Path.Combine(SourceTree.Root, "Paca.Mobile");
+
+        var apiClientPath = File.Exists(Path.Combine(mobileDir, "ApiClient.cs"))
+            ? Path.Combine(mobileDir, "ApiClient.cs")
+            : Path.Combine(SourceTree.Root, "src", "Paca.Mobile.Core", "ApiClient.cs");
+        Assert.True(File.Exists(apiClientPath), "ApiClient.cs must exist");
+
+        var code = File.ReadAllText(apiClientPath);
+
+        Assert.Contains("GetRemoteTabsAsync", code);
+        Assert.Contains("OpenRemoteTabAsync", code);
+    }
+}