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

tests/Paca.Tests/Mobile/MobileGatewayDaemonAndHandshakeGateTests.cs

@@ -0,0 +1,105 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+using Paca.Server;
+using Paca.Server.Gateway;
+using Xunit;
+
+namespace Paca.Tests.Mobile;
+
+/// <summary>
+/// Gate 139 ~ 143: 백그라운드 게이트웨이 상주 서비스, 신뢰 기기 원클릭 페어링 핸드셰이크, Windows 시작 등록 규격 검증
+/// </summary>
+public class MobileGatewayDaemonAndHandshakeGateTests
+{
+    [Fact]
+    public void Gate139_TrustedDevicesStore_Add_And_Authorize()
+    {
+        var store = new TrustedDevicesStore();
+        Assert.Empty(store.GetTrustedDevices());
+
+        var device = new TrustedDevice(
+            DeviceId: "device-uuid-99",
+            DeviceName: "Galaxy-S24-Ultra",
+            Fingerprint: "FP-GALAXY-99",
+            IsApproved: true,
+            RegisteredAt: DateTimeOffset.UtcNow,
+            LastSeenAt: DateTimeOffset.UtcNow
+        );
+
+        store.RegisterDevice(device);
+        Assert.Single(store.GetTrustedDevices());
+        Assert.True(store.IsDeviceTrusted("device-uuid-99"));
+        Assert.False(store.IsDeviceTrusted("unknown-device"));
+    }
+
+    [Fact]
+    public void Gate140_OneClickPairing_Handshake_Resolves_Token()
+    {
+        var store = new TrustedDevicesStore();
+        var handshakeEngine = new OneClickPairingEngine(store, serverToken: "MASTER-PACA-TOKEN-SECRET");
+
+        // 1. 신규 기기 핸드셰이크 요청 (페어링 허용 모드)
+        var req = new PairingHandshakeRequest(
+            ClientDeviceId: "client-phone-01",
+            ClientDeviceName: "iPhone 16 Pro",
+            ClientFingerprint: "FINGERPRINT-IPHONE",
+            IsOneClickRequest: true
+        );
+
+        var resp = handshakeEngine.ProcessHandshake(req, autoApproveNewLanClients: true);
+        Assert.NotNull(resp);
+        Assert.True(resp.Success);
+        Assert.Equal("MASTER-PACA-TOKEN-SECRET", resp.IssuedToken);
+        Assert.True(store.IsDeviceTrusted("client-phone-01"));
+
+        // 2. 신규 기기 등록 불허 모드에서는 거절
+        var req2 = new PairingHandshakeRequest(
+            ClientDeviceId: "untrusted-stranger",
+            ClientDeviceName: "Unknown-Device",
+            ClientFingerprint: "FP-UNKNOWN",
+            IsOneClickRequest: true
+        );
+        var resp2 = handshakeEngine.ProcessHandshake(req2, autoApproveNewLanClients: false);
+        Assert.NotNull(resp2);
+        Assert.False(resp2.Success);
+        Assert.Null(resp2.IssuedToken);
+    }
+
+    [Fact]
+    public void Gate141_GatewayStartupConfig_Command_Arguments()
+    {
+        var config = new GatewayStartupConfig(
+            RunOnWindowsStartup: true,
+            StartMinimizedToTray: true,
+            AutoPortForwarding: true,
+            HttpPort: 52100
+        );
+
+        var args = config.ToCommandLineArgs();
+        Assert.Contains("--gateway-daemon", args);
+        Assert.Contains("--tray", args);
+        Assert.Contains("--port 52100", args);
+
+        var parsed = GatewayStartupConfig.ParseArgs(args);
+        Assert.True(parsed.StartMinimizedToTray);
+        Assert.Equal(52100, parsed.HttpPort);
+    }
+
+    [Fact]
+    public void Gate142_GatewayDaemon_Heartbeat_And_Status()
+    {
+        var daemon = new PacaGatewayDaemonState(
+            DeviceName: "Encep-Studio-PC",
+            HttpPort: 52100,
+            LanBeaconActive: true,
+            WanGatewayActive: true,
+            ConnectCode: "PACA-982143"
+        );
+
+        Assert.True(daemon.IsOperational);
+        Assert.Equal("PACA-982143", daemon.ConnectCode);
+        Assert.Equal("http://localhost:52100", daemon.LocalEndpoint);
+    }
+}