Start rtpMIDI if it is not running; it also restarts itself if it crashes

- Hold MIDI on "LIGHT PC MIDI GONE" starts the rtpMIDI service, then its tray
  app, only if they are not running (a restart drops every session).
- The Lighting PC's rtpMIDI service now has Windows recovery actions
  (restart after 5 s, 5 s, 30 s); windows-setup.ps1 sets the same.
- coremidi.disconnect_peer (Disconnect in Audio MIDI Setup), used to test the
  alarms: all six links dropped and came back (four by themselves, two by
  the hold).
- Audio MIDI Setup need not be open: quitting it on NA Ingest left the
  session connected.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_status_panel.py

@@ -529,8 +529,12 @@ class TestFixes(unittest.TestCase):
         self.assertEqual(self.plan("arena"), [("fix", "arena")])
         self.assertEqual(self.plan("apps"), [("fix", "vista")])
         # Restarting rtpMIDI drops every session and does not rejoin them (2026-10-08): the hold
-        # reconnects the peer from the Mac's side instead, like Connect in Audio MIDI Setup.
-        self.assertEqual(self.plan("midi"), [("fix", "midi_reconnect")])
+        # starts rtpMIDI only if it is not running, and reconnects the peer from the Mac's side.
+        self.assertEqual(sorted(self.plan("midi")), [("fix", "midi_reconnect"), ("fix", "rtpmidi_start")])
+        run = CONFIG["fixes"]["rtpmidi_start"]["run"]
+        self.assertTrue(run.startswith("(sc query rtpMIDIService | find"), run)
+        self.assertNotIn("Restart-Service", run)
+        self.assertNotIn("net stop", run)
         for fix_id in ("obs", "arena", "vista"):                             # never closes a running app
             self.assertTrue(CONFIG["fixes"][fix_id]["run"].startswith("tasklist "), fix_id)
 
@@ -575,6 +579,9 @@ class TestFixes(unittest.TestCase):
         self.assertEqual(new["peers"][2], {"address": "10.1.10.206:5004", "name": "Lighting PC"})
         self.assertEqual({k: v for k, v in new.items() if k != "peers"}, {k: v for k, v in sess.items() if k != "peers"})
         self.assertIsNone(coremidi.with_peer(new, "Lighting PC", "10.1.10.206:5004"))   # already there
+        back = coremidi.without_peer(new, "Lighting PC")
+        self.assertEqual(back, sess)
+        self.assertIsNone(coremidi.without_peer(sess, "Lighting PC"))                    # not there
 
     def test_an_off_pc_is_woken(self):
         from unittest import mock