first commit

Services/Interfaces/IUserSwitcher.cs

@@ -0,0 +1,14 @@
+using HanaToolbox.Services.Interfaces;
+
+namespace HanaToolbox.Services.Interfaces;
+
+public interface IUserSwitcher
+{
+    /// <summary>
+    /// Executes a shell command string as &lt;sid&gt;adm using `su - &lt;sid&gt;adm -c`.
+    /// If already running as &lt;sid&gt;adm, runs the command directly.
+    /// </summary>
+    Task<ProcessResult> RunAsAsync(
+        string sid, string shellCommand,
+        CancellationToken ct = default);
+}