MIDI hold re-adds a peer stuck half-connected

After the network test SuperRack sat in NA Ingest's session as
"initializing"; the hold saw it listed and did nothing ("already").
connect_peer now drops a listed-but-not-live peer and adds it back,
building the second write from the first so a slow re-read cannot leave
it dropped. Tested live today: DVS x4, APPS and INGEST holds, NET clear,
CAPTIONS and BRIDGE restart keys.

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

tests/test_status_panel.py

@@ -789,6 +789,24 @@ class TestFixes(unittest.TestCase):
         self.assertEqual(back, sess)
         self.assertIsNone(coremidi.without_peer(sess, "Lighting PC"))                    # not there
 
+    def test_a_peer_stuck_initializing_is_kicked(self):
+        import coremidi
+        from unittest import mock
+        sess = {"dns-sd-name": "NA Ingest", "port": 5009, "peers": [
+            {"name": "Lighting PC", "address": "10.1.10.206:5004", "state": "running"},
+            {"name": "SuperRack-LiveBox", "address": "10.1.13.140:5004", "state": "initializing"}]}
+        self.assertTrue(coremidi.stuck_peer(sess, "SuperRack-LiveBox"))
+        self.assertFalse(coremidi.stuck_peer(sess, "Lighting PC"))
+        writes = []
+        with mock.patch.object(coremidi, "_session_entities", return_value=[(1, sess)]), \
+                mock.patch.object(coremidi, "_string_prop", return_value=None), \
+                mock.patch.object(coremidi, "_set_dict_prop", side_effect=lambda e, k, v: writes.append(v) or 0):
+            self.assertEqual(coremidi.connect_peer("NA Ingest", "SuperRack-LiveBox", "10.1.13.140:5004",
+                                                   settle=lambda s: None), "kicked")
+            self.assertEqual(coremidi.connect_peer("NA Ingest", "Lighting PC", "10.1.10.206:5004"), "already")
+        self.assertEqual([[p["name"] for p in w["peers"]] for w in writes],
+                         [["Lighting PC"], ["Lighting PC", "SuperRack-LiveBox"]])   # dropped, then added back
+
     def test_an_off_pc_is_woken(self):
         from unittest import mock
         woke = []