Add auto-discovery support (UDP discovery responder & subnet scanner) and implement virtual screen MCP server

boot.py

@@ -21,6 +21,13 @@ def connect_wifi():
         print("Display init failed in boot.py:", e)
 
     # Initialize Wi-Fi Station
+    try:
+        import network
+        network.hostname('esp32screen')
+        print("Hostname set to: {}".format(network.hostname()))
+    except Exception as he:
+        print("Failed to set hostname: {}".format(he))
+
     wlan = network.WLAN(network.STA_IF)
     wlan.active(True)