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

tests/Paca.Tests/Infrastructure/GrandUnifiedPipeline.cs

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+using System.IO;
+using Paca.App.Core;
+using Paca.App.ViewModels;
+using Paca.Browser;
+using Paca.Browser.Tabs;
+using Paca.Core.Config;
+using Paca.Core.Detection;
+using Paca.Core.Platform;
+using Paca.Core.Utils;
+
+namespace Paca.Tests.Infrastructure;
+
+public sealed class MockPipelineProcessRunner : IProcessRunner
+{
+    public List<ProcessSpec> Specs { get; } = new();
+
+    public Task<ProcessResult> RunAsync(ProcessSpec spec, Action<string, string>? onLine, CancellationToken ct)
+    {
+        Specs.Add(spec);
+        return Task.FromResult(new ProcessResult(0, "OK", ""));
+    }
+}
+
+public sealed class MockPipelineCloudStorageClient : ICloudStorageClient
+{
+    public List<string> UploadedList { get; } = new();
+
+    public Task<bool> UploadAsync(string localFilePath, string remoteDestination, Action<long, long>? onProgress, CancellationToken ct)
+    {
+        UploadedList.Add($"{localFilePath} -> {remoteDestination}");
+        return Task.FromResult(true);
+    }
+
+    public Task<bool> ExistsAsync(string remoteDestination, CancellationToken ct)
+    {
+        return Task.FromResult(UploadedList.Any(u => u.EndsWith(remoteDestination)));
+    }
+}
+
+/// <summary>
+/// 40개 마일스톤 전 영역 통합 오케스트레이션 파이프라인 하네스.
+/// </summary>
+public sealed class GrandUnifiedPipeline : IDisposable
+{
+    public string TempDir { get; }
+    public AppConfig Config { get; }
+    public TabManager TabManager { get; }
+    public AdBlockRuleEngine AdBlockEngine { get; }
+    public MemoryTurboGuard MemoryGuard { get; }
+    public DownloadManager DownloadManager { get; }
+    public VideoDeduplicator Deduplicator { get; }
+    public QoSTrafficShaper TrafficShaper { get; }
+    public ChaosMonkeyStressDefense ChaosDefense { get; }
+    public AudioNormalizer AudioNormalizer { get; }
+    public HdrToneMapper HdrToneMapper { get; }
+    public ChapterSplitter ChapterSplitter { get; }
+    public DualSubtitleEngine DualSubtitleEngine { get; }
+    public CloudSyncGateway CloudGateway { get; }
+    public MockPipelineProcessRunner ProcessRunner { get; }
+    public MockPipelineCloudStorageClient CloudClient { get; }
+
+    private readonly List<DownloadItemViewModel> _detectedItems = new();
+
+    private GrandUnifiedPipeline()
+    {
+        TempDir = Path.Combine(Path.GetTempPath(), "VD_Grand_" + Guid.NewGuid().ToString("N"));
+        Directory.CreateDirectory(TempDir);
+
+        Config = new AppConfig
+        {
+            OutputFolder = Path.Combine(TempDir, "downloads")
+        };
+        Directory.CreateDirectory(Config.OutputFolder);
+
+        ProcessRunner = new MockPipelineProcessRunner();
+        CloudClient = new MockPipelineCloudStorageClient();
+
+        TabManager = new TabManager(() => new TabItem(), _ => { });
+        AdBlockEngine = new AdBlockRuleEngine();
+        MemoryGuard = new MemoryTurboGuard(TimeSpan.FromMinutes(10));
+
+        DownloadManager = new DownloadManager(
+            Config,
+            _ => Task.FromResult(new List<Microsoft.Web.WebView2.Core.CoreWebView2Cookie>()),
+            _ => { });
+
+        DownloadManager.ItemDetected += item => _detectedItems.Add(item);
+
+        Deduplicator = new VideoDeduplicator(maxHammingThreshold: 5);
+        TrafficShaper = new QoSTrafficShaper(maxBandwidthBytesPerSec: 10_000_000);
+        ChaosDefense = new ChaosMonkeyStressDefense(failureRate: 0.3);
+        AudioNormalizer = new AudioNormalizer(ProcessRunner);
+        HdrToneMapper = new HdrToneMapper(ProcessRunner);
+        ChapterSplitter = new ChapterSplitter(ProcessRunner);
+        DualSubtitleEngine = new DualSubtitleEngine();
+        CloudGateway = new CloudSyncGateway(CloudClient);
+    }
+
+    public static GrandUnifiedPipeline Create() => new();
+
+    public IReadOnlyList<DownloadItemViewModel> DetectedItems => _detectedItems;
+
+    public void SimulateWebRequest(string url, MediaKind? mediaKind = null, string? pageUrl = null)
+    {
+        var uri = new Uri(url);
+
+        // 1. 광고 차단 검사
+        if (AdBlockEngine.ShouldBlock(uri))
+            return;
+
+        // 2. 미디어 감지
+        if (mediaKind.HasValue)
+        {
+            DownloadManager.OnDetected(new DetectionContext(url, pageUrl ?? "https://test.local", mediaKind.Value));
+        }
+    }
+
+    public void Dispose()
+    {
+        if (Directory.Exists(TempDir))
+        {
+            try { Directory.Delete(TempDir, true); } catch { }
+        }
+    }
+}