printer discovery in print service

EpsonPrintService/ConsoleDiscoveredPrintersReceiver.cs

@@ -0,0 +1,26 @@
+using Inspectron.Epson;
+
+namespace EpsonPrintService;
+
+/// <summary>
+/// Simple console implementation that logs discovered printers to the console
+/// </summary>
+public class ConsoleDiscoveredPrintersReceiver : IDiscoveredPrintersReceiver
+{
+    public Task OnPrintersDiscoveredAsync(IReadOnlyList<DiscoveredPrinter> printers)
+    {
+        Console.WriteLine($"[{DateTime.Now:HH:mm:ss}] Discovered printers changed. Found {printers.Count} printer(s):");
+
+        foreach (var printer in printers)
+        {
+            Console.WriteLine($"  - {printer.IPAddress}");
+        }
+
+        if (printers.Count == 0)
+        {
+            Console.WriteLine("  (no printers found)");
+        }
+
+        return Task.CompletedTask;
+    }
+}