M0: remote access server - Kestrel embedded (token auth/pair/queue API/library/range streaming/web companion zero-install), QR pairing window, DownloadQueueAdapter, auto-start+palette commands. Server E2E green (102 tests)

VideoDownloader.Core/Config/AppConfig.cs

@@ -73,4 +73,8 @@ public class AppConfig
 
     /// <summary>종료 시 탭을 저장하고 다음 시작에 복원(T1-10 세션 복원).</summary>
     public bool RestoreSession { get; set; } = true;
+
+    /// <summary>M0 원격 접근(모바일 연동) 서버 켜기. 토큰은 자동 생성/저장.</summary>
+    public bool RemoteAccessEnabled { get; set; } = false;
+    public string? RemoteAccessToken { get; set; }
 }