Clear a fault once its check stops reporting it

Found in today's power-off test: a Shure/PSM check reports "conn" while its
connection is down and per-channel results once it is back, so the
"AXIENT 1 OFFLINE" tracker never saw OK. The button looked green, but no
CLEAR was logged and a hold on RF would still have restarted the Shure
connections. A tracker missing from a round now gets an OK update.

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

status_panel.py

@@ -724,6 +724,14 @@ class Engine:
                 self.events.append(("FAULT", "%s %s" % (self.tiles[tile_id]["label"], res.msg)))
             elif event == "clear":
                 self.events.append(("CLEAR", "%s %s" % (self.tiles[tile_id]["label"], tr.last_fault_msg)))
+        # A check may stop reporting a fault instead of reporting it OK: a Shure or PSM check says
+        # "conn" while its connection is down and per channel once it is back (2026-10-08). Such a
+        # fault is over - clear it, or it lingers unseen and a hold would still try to fix it.
+        for key, tr in self.trackers.items():
+            if key not in raw and (tr.confirmed or tr.bad_since is not None):
+                if tr.update(Result(OK), now, 0, self.flap_window) == "clear" and key in self.meta:
+                    tile_id = self.meta[key][0]
+                    self.events.append(("CLEAR", "%s %s" % (self.tiles[tile_id]["label"], tr.last_fault_msg)))
         self.items = {}
         for key, (tile_id, res, chk) in raw.items():
             tr = self.trackers[key]