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

tests/Paca.Tests/Core/SmartBandwidthSchedulerGateTests.cs

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+using System;
+using System.IO;
+using Paca.Mobile.Core;
+using Paca.Tests.Infrastructure;
+using Xunit;
+
+namespace Paca.Tests.Core;
+
+/// <summary>
+/// Gate 179 ~ 182: 스마트 대역폭 스케줄러 & 야간 오프피크 자동 큐잉 엔진 기계적 검증
+/// </summary>
+public class SmartBandwidthSchedulerGateTests
+{
+    [Fact]
+    public void Gate179_BandwidthSchedulePolicy_Immediate_AlwaysAllowed()
+    {
+        var policy = BandwidthSchedulePolicy.ImmediateUncapped;
+        var now = new DateTimeOffset(2026, 9, 4, 14, 0, 0, TimeSpan.FromHours(9)); // 오후 2시
+
+        Assert.True(policy.IsDownloadAllowed(now));
+        Assert.Equal(0, policy.GetCurrentRateLimitBytesPerSec(now)); // 0 = 무제한
+    }
+
+    [Fact]
+    public void Gate180_BandwidthSchedulePolicy_NightOwl_TimeWindow()
+    {
+        // 01:00 ~ 06:00 야간 정책
+        var policy = new BandwidthSchedulePolicy(
+            ScheduleMode.NightOwlOffPeak,
+            StartHour: 1,
+            EndHour: 6,
+            ThrottledBytesPerSec: 0
+        );
+
+        // 오후 14:00 -> 다운로드 대기(false)
+        var afternoon = new DateTimeOffset(2026, 9, 4, 14, 30, 0, TimeSpan.FromHours(9));
+        Assert.False(policy.IsDownloadAllowed(afternoon));
+
+        // 새벽 03:00 -> 다운로드 허용(true)
+        var midnight = new DateTimeOffset(2026, 9, 4, 3, 0, 0, TimeSpan.FromHours(9));
+        Assert.True(policy.IsDownloadAllowed(midnight));
+    }
+
+    [Fact]
+    public void Gate181_BandwidthSchedulePolicy_BusinessHours_Throttling()
+    {
+        // 09:00 ~ 18:00 업무 시간 1MB/s 제한, 그 외 무제한
+        var policy = new BandwidthSchedulePolicy(
+            ScheduleMode.BusinessHoursThrottled,
+            StartHour: 9,
+            EndHour: 18,
+            ThrottledBytesPerSec: 1_048_576 // 1 MB/s
+        );
+
+        // 오전 11:00 -> 스로틀 적용 (1MB/s)
+        var workingTime = new DateTimeOffset(2026, 9, 4, 11, 0, 0, TimeSpan.FromHours(9));
+        Assert.True(policy.IsDownloadAllowed(workingTime));
+        Assert.Equal(1_048_576, policy.GetCurrentRateLimitBytesPerSec(workingTime));
+
+        // 밤 21:00 -> 무제한 (0)
+        var evening = new DateTimeOffset(2026, 9, 4, 21, 0, 0, TimeSpan.FromHours(9));
+        Assert.True(policy.IsDownloadAllowed(evening));
+        Assert.Equal(0, policy.GetCurrentRateLimitBytesPerSec(evening));
+    }
+
+    [Fact]
+    public void Gate182_ServerHost_SchedulePolicy_Endpoint_Audit()
+    {
+        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/config/schedule", code);
+    }
+}