refactor(launcher): reorganize into responsibility folders

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

LanMountainDesktop.Launcher/Infrastructure/LauncherExecutionContext.cs

@@ -0,0 +1,30 @@
+using System.Security.Principal;
+using LanMountainDesktop.Launcher.Models;
+
+namespace LanMountainDesktop.Launcher.Infrastructure;
+
+internal static class LauncherExecutionContext
+{
+    public static LauncherExecutionSnapshot Capture()
+    {
+        var userName = Environment.UserName ?? string.Empty;
+        if (!OperatingSystem.IsWindows())
+        {
+            return new LauncherExecutionSnapshot(false, userName, null);
+        }
+
+        try
+        {
+            using var identity = WindowsIdentity.GetCurrent();
+            var principal = new WindowsPrincipal(identity);
+            return new LauncherExecutionSnapshot(
+                principal.IsInRole(WindowsBuiltInRole.Administrator),
+                userName,
+                identity.User?.Value);
+        }
+        catch
+        {
+            return new LauncherExecutionSnapshot(false, userName, null);
+        }
+    }
+}