fix(media_player): ADB-health-aware _attr_available; fetch_media_info dispatches through _track_task (F2, F4)

custom_components/nvidia_shield/media_player.py

@@ -94,6 +94,7 @@ class NvidiaShieldMediaPlayer(MediaPlayerEntity):
     _attr_has_entity_name = True
     _attr_name = None
     _attr_should_poll = False
+    # Overridden as a property below: ADB-health aware
 
     def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
         self.hass = hass
@@ -121,6 +122,18 @@ class NvidiaShieldMediaPlayer(MediaPlayerEntity):
         # here directly.
         self._entity_tasks: set = set()
 
+    @property
+    def available(self) -> bool:
+        """The bridge entities stay functional without ADB (passive manager).
+
+        Unavailable only while an active ADB manager is down — its data is
+        unreliable until the watchdog reconnects (t5-F2).
+        """
+        manager = getattr(self._entry, "runtime_data", None)
+        if not isinstance(manager, ShieldConnectionManager):
+            return True
+        return manager.connected or manager.awake is not None or not manager.available
+
     @property
     def _jellyfin_entity(self) -> str | None:
         return self._entry.options.get(CONF_JELLYFIN_ENTITY) or None
@@ -312,7 +325,7 @@ class NvidiaShieldMediaPlayer(MediaPlayerEntity):
             # Fetch media stream info when playing
             if new_jf in (STATE_PLAYING, STATE_PAUSED):
                 entity_picture = new_state_obj.attributes.get("entity_picture", "")
-                self.hass.async_create_task(
+                self._track_task(
                     self._fetch_media_info(entity_picture)
                 )
             else: