Issue #10: implement worker process launcher

src/MxGateway.Server/Workers/WorkerProcessHandle.cs

@@ -0,0 +1,28 @@
+namespace MxGateway.Server.Workers;
+
+public sealed class WorkerProcessHandle : IDisposable
+{
+    public WorkerProcessHandle(
+        IWorkerProcess process,
+        WorkerProcessCommandLine commandLine,
+        DateTimeOffset launchedAt)
+    {
+        Process = process;
+        ProcessId = process.Id;
+        CommandLine = commandLine;
+        LaunchedAt = launchedAt;
+    }
+
+    public IWorkerProcess Process { get; }
+
+    public int ProcessId { get; }
+
+    public WorkerProcessCommandLine CommandLine { get; }
+
+    public DateTimeOffset LaunchedAt { get; }
+
+    public void Dispose()
+    {
+        Process.Dispose();
+    }
+}