1.0.0+kodimov.13: updates don't stop live TV; IPTV Simple restarts only when idle

- After an add-on update the new service found port 57031 still held by the
  old proxy for a moment and moved to a random port; the stream playing kept
  asking 57031 for its manifest and died a minute later (.49, 2026-11-13).
  The proxy now waits up to 10 s for the port, and SO_REUSEADDR /
  allow_reuse_address are set before binding (upstream set them after, so
  they did nothing).
- IPTV Simple is restarted only when nothing plays and no key was pressed
  for 30 s: on .49 a channel opened during a restart failed with an error.
- After start or update, changed instance files (duplicate removed, refresh
  timer) are picked up by the guide reload instead of a restart of their
  own; the service restarts IPTV Simple itself only if that reload didn't
  happen within 10 minutes. 3 restarts after kodimov.12 -> 2.

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

service.py

@@ -29,7 +29,8 @@ if __name__ == '__main__':
   # programme guide a minute after Kodi starts and then every 6 hours; a
   # refresh that failed is tried again half an hour later. Opening the add-on
   # also renews the 10-day Movistar login.
-  next_check = time.time() + 60
+  started = time.time()
+  next_check = started + 60
   max_age = 0  # always refresh once after Kodi starts
   new_api_retries = 6
   try:
@@ -39,12 +40,17 @@ if __name__ == '__main__':
   except RuntimeError:  # IPTV Simple not installed or disabled
     pvr_dir = None
     restart_iptv = False
-  player = xbmc.Player()
+  # A changed instance file needs IPTV Simple restarted. The guide reload
+  # after start (below) restarts it anyway, so that one is left to do it;
+  # this is only the fallback, 10 minutes later, if it didn't happen.
+  restart_after = started + 10 * 60
   monitor = xbmc.Monitor()
   while not monitor.abortRequested():
     if monitor.waitForAbort(1):
       break
-    if restart_iptv and not player.isPlaying():  # restarting stops live TV
+    if restart_iptv and kodimov.last_iptv_restart() > started:
+      restart_iptv = False
+    if restart_iptv and time.time() >= restart_after and kodimov.is_idle():
       restart_iptv = False
       kodimov.restart_iptv_simple()
     if time.time() >= next_check:
@@ -57,13 +63,14 @@ if __name__ == '__main__':
       age_limit, max_age = max_age, 6 * 3600 - 120
       # After Kodi starts (or this add-on updates) also get the new guide into Kodi now
       reload_guide = '&reload_guide=1' if age_limit == 0 else ''
+      if restart_iptv: reload_guide = '&reload_guide=force'  # also for the changed instance files
       # The new servers failed (they at times refuse everything for minutes):
       # the list lacks LALIGA, DAZN LALIGA, Liga de Campeones. Try again in
       # half an hour, a few times, instead of in 6 hours.
       if new_api_retries and kodimov.new_api_failed(profile_dir):
         new_api_retries -= 1
         age_limit = 0
-        reload_guide = '&reload_guide=1'
+        reload_guide = reload_guide or '&reload_guide=1'
       if addon.getSettingBool('auto_export_epg'):  # channels + programme guide
         if file_age(os.path.join(profile_dir, 'epg.xml')) > age_limit:
           exporting = True