refactor(launcher): reorganize into responsibility folders

Co-authored-by: Cursor <cursoragent@cursor.com>

LanMountainDesktop.Launcher/Infrastructure/Logger.cs

@@ -0,0 +1,148 @@
+using System.Text;
+
+namespace LanMountainDesktop.Launcher.Infrastructure;
+
+/// <summary>
+/// 简单的日志记录器 - 同时输出到控制台和文件
+/// </summary>
+internal static class Logger
+{
+    private static readonly object _lock = new();
+    private static string? _logFilePath;
+    private static bool _initialized;
+
+    /// <summary>
+    /// 初始化日志记录器
+    /// </summary>
+    public static void Initialize()
+    {
+        if (_initialized)
+        {
+            return;
+        }
+
+        try
+        {
+            var logDir = GetLogDirectory();
+            if (!string.IsNullOrEmpty(logDir))
+            {
+                Directory.CreateDirectory(logDir);
+                var timestamp = DateTime.Now.ToString("yyyyMMdd_HHmmss");
+                _logFilePath = Path.Combine(logDir, $"launcher_{timestamp}.log");
+                Console.WriteLine($"[Logger] Log file initialized: {_logFilePath}");
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.Error.WriteLine($"[Logger] Failed to initialize log file: {ex.Message}");
+        }
+
+        _initialized = true;
+    }
+
+    /// <summary>
+    /// 获取日志文件路径
+    /// </summary>
+    public static string? GetLogFilePath()
+    {
+        return _logFilePath;
+    }
+
+    /// <summary>
+    /// 获取日志目录
+    /// </summary>
+    private static string? GetLogDirectory()
+    {
+        try
+        {
+            var appRoot = Commands.ResolveAppRoot(CommandContext.FromArgs([]));
+            var resolver = new DataLocationResolver(appRoot);
+            return resolver.ResolveLauncherLogsPath();
+        }
+        catch
+        {
+        }
+
+        try
+        {
+            var appData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+            if (!string.IsNullOrEmpty(appData))
+            {
+                return Path.Combine(appData, "LanMountainDesktop", "Launcher", "logs");
+            }
+        }
+        catch
+        {
+        }
+
+        try
+        {
+            var launcherDir = AppContext.BaseDirectory;
+            return Path.Combine(launcherDir, "Launcher", "logs");
+        }
+        catch
+        {
+        }
+
+        return null;
+    }
+
+    /// <summary>
+    /// 记录信息日志
+    /// </summary>
+    public static void Info(string message)
+    {
+        WriteLog("INFO", message);
+    }
+
+    /// <summary>
+    /// 记录警告日志
+    /// </summary>
+    public static void Warn(string message)
+    {
+        WriteLog("WARN", message);
+    }
+
+    /// <summary>
+    /// 记录错误日志
+    /// </summary>
+    public static void Error(string message)
+    {
+        WriteLog("ERROR", message);
+    }
+
+    /// <summary>
+    /// 记录错误日志（带异常）
+    /// </summary>
+    public static void Error(string message, Exception exception)
+    {
+        WriteLog("ERROR", $"{message}\n{exception}");
+    }
+
+    /// <summary>
+    /// 写入日志
+    /// </summary>
+    private static void WriteLog(string level, string message)
+    {
+        var timestamp = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");
+        var logLine = $"[{timestamp}] [{level}] {message}";
+
+        Console.WriteLine(logLine);
+
+        if (string.IsNullOrEmpty(_logFilePath))
+        {
+            return;
+        }
+
+        try
+        {
+            lock (_lock)
+            {
+                File.AppendAllText(_logFilePath, logLine + Environment.NewLine, Encoding.UTF8);
+            }
+        }
+        catch
+        {
+        }
+    }
+}