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>

resources/lib/plugin.py

@@ -835,7 +835,7 @@ def export_epg_now(quiet=False, reload_guide=False):
   if True: #not addon.getSettingBool('use_external_epg'):
     notify(addon.getLocalizedString(30311))
     changed = m.export_epg_to_xml(epg_filename, addon.getSettingInt('export_days'), report_progress, only_subscribed)
-    if changed and reload_guide:
+    if reload_guide == 'force' or (changed and reload_guide):
       from . import kodimov
       try:
         pvr_dir = translatePath(xbmcaddon.Addon('pvr.iptvsimple').getAddonInfo('profile'))
@@ -941,7 +941,7 @@ def router(paramstring):
     elif params['action'] == 'create_iptv_settings':
       create_iptv_settings()
     elif params['action'] == 'export_epg_now':
-      export_epg_now(quiet=params.get('quiet') == '1', reload_guide=params.get('reload_guide') == '1')
+      export_epg_now(quiet=params.get('quiet') == '1', reload_guide=params.get('reload_guide'))
     elif params['action'] == 'to_wishlist':
       to_wishlist(params)
     elif 'iptv' in params['action']: