Extract IHardwareMonitorService, ILogger, IRemoteWebServer interfaces

Define interfaces over the three domain services that the view model hard-news
today (the testability blocker). Concrete types implement the new interfaces;
no wiring or behavior change yet.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

LibreHardwareMonitor.Windows.WinUI/Services/IRemoteWebServer.cs

@@ -0,0 +1,34 @@
+// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+// Copyright (C) LibreHardwareMonitor and Contributors.
+
+using System;
+
+namespace LibreHardwareMonitor.Windows.WinUI.Services;
+
+/// <summary>
+/// Optional HTTP server exposing sensor data. Extracted as an interface so the view model can be
+/// unit-tested with a fake (and so the real server's network resources stay out of tests).
+/// </summary>
+public interface IRemoteWebServer : IDisposable
+{
+    bool AuthEnabled { get; set; }
+
+    string ListenerIp { get; set; }
+
+    int ListenerPort { get; set; }
+
+    string PasswordHash { get; }
+
+    bool PlatformNotSupported { get; }
+
+    string UserName { get; set; }
+
+    void SetPassword(string plainPassword);
+
+    bool Start();
+
+    bool Stop();
+
+    void Quit();
+}