1.0.0+kodimov.12: no duplicate TV guide instance; retry the web player registration

- The TV guide setup always wrote instance-settings-91.xml, so on a box
  already set up with another instance (from the original add-on) both read
  channels.m3u8 and every channel showed twice. The setup now rewrites the
  instance that already reads the list, and the service deletes extra ones
  at start (keeps the one that isn't 91, which holds what was watched) and
  restarts IPTV Simple when nothing plays.
- The web player registration for the new servers got one 401 error page
  and gave up, and the TV guide list then lacked LALIGA, DAZN LALIGA and
  Liga de Campeones until the next export 6 hours later. The registration
  is tried 3 times, and after a failure the service exports the list again
  every half hour, up to 6 times.

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

addon.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <addon id="plugin.video.kodimovplus"
        name="KodiMov+"
-       version="1.0.0+kodimov.11"
+       version="1.0.0+kodimov.12"
        provider-name="Paco8, xocko">
   <requires>
   <!--- <import addon="xbmc.python" version="2.25.0"/> -->
@@ -21,7 +21,8 @@
     <summary lang="es_ES">Movistar+ para Kodi, con inicio de sesión automático desde la red de Movistar</summary>
     <description lang="en_GB">Fork of Paco8's Movistar+ add-on (plugin.video.movistarplus). Logs in by itself from the Movistar home network, keeps the channel list and numbers up to date, plays the LALIGA, DAZN LALIGA and Liga de Campeones channels through Movistar's new servers (from the Movistar home network), hides the channels it can't play, adds free Galician channels (TVG2, TeleVigo) and writes a programme guide for every channel. Requires a Movistar+ subscription.</description>
     <description lang="es_ES">Fork del addon Movistar+ de Paco8 (plugin.video.movistarplus). Inicia sesión solo desde la red de Movistar, mantiene la lista y los números de los canales al día, reproduce los canales de LALIGA, DAZN LALIGA y Liga de Campeones a través de los servidores nuevos de Movistar (desde la red de Movistar de casa), oculta los canales que no puede reproducir, añade canales gallegos gratuitos (TVG2, TeleVigo) y genera la guía de programación de todos los canales. Se necesita estar abonado a Movistar+.</description>
-    <news>1.0.0+kodimov.11: Movistar's channel numbers also show on boxes with more than one IPTV Simple instance (Radios de Vigo, a leftover empty one), where Kodi had refused the setting and numbered the channels 1, 2, 3...; existing TV guide setups are put right by themselves. KodiMov+ and Radios de Vigo no longer restart IPTV Simple at the same time.
+    <news>1.0.0+kodimov.12: no more channels twice in the TV guide on boxes where the TV guide setup was run over an existing setup (the extra IPTV Simple instance is removed, and the setup now rewrites the existing one). LALIGA, DAZN LALIGA and Liga de Campeones no longer go missing for 6 hours when Movistar's new servers refuse the box's registration as a web player once: it is tried again, and the TV guide list is rewritten half an hour later.
+1.0.0+kodimov.11: Movistar's channel numbers also show on boxes with more than one IPTV Simple instance (Radios de Vigo, a leftover empty one), where Kodi had refused the setting and numbered the channels 1, 2, 3...; existing TV guide setups are put right by themselves. KodiMov+ and Radios de Vigo no longer restart IPTV Simple at the same time.
 1.0.0+kodimov.10: the LALIGA, DAZN LALIGA and Liga de Campeones channels are back, live and catch-up, on boxes connected to the Movistar home network (their streams are now served only through Movistar's new servers). New setting to always play at the best quality, up to 1080p, instead of the 576p Kodi stays at on automatic (off by default). The "Error 4027" message no longer pops up when the add-on recovers from it by itself.
 1.0.0+kodimov.9: after Kodi starts or the add-on updates, a new programme guide shows up in Kodi within a couple of minutes instead of at the next hourly reload (only while nothing is playing).
 1.0.0+kodimov.8: the programme guide refresh no longer fails at random inside Kodi, and a failed refresh is tried again half an hour later instead of 6 hours later.