feat(media): SmtcController.pause() erkennt und pausiert PLAYING-Sessions

whisper_local/media/_smtc.py

@@ -24,12 +24,32 @@ class SmtcController:
             )
         return self._manager
 
+    async def _pause_session(self, session: Any) -> str | None:
+        """Pausiert eine Session wenn sie spielt. Gibt AUMID zurück, sonst None."""
+        from winrt.windows.media.control import (
+            GlobalSystemMediaTransportControlsSessionPlaybackStatus,
+        )
+        aumid = session.source_app_user_model_id
+        try:
+            info = session.get_playback_info()
+            if (
+                info.playback_status
+                != GlobalSystemMediaTransportControlsSessionPlaybackStatus.PLAYING
+            ):
+                return None
+            await session.try_pause_async()
+            return aumid
+        except Exception as e:
+            logger.warning("Konnte Session %s nicht pausieren: %s", aumid, e)
+            return None
+
     async def pause(self) -> None:
         if self._broken:
             self._paused = []
             return
+
         try:
-            await self._ensure_manager()
+            manager = await self._ensure_manager()
         except Exception as e:
             logger.warning(
                 "SMTC nicht erreichbar, Media-Pause dauerhaft deaktiviert: %s", e
@@ -38,5 +58,13 @@ class SmtcController:
             self._paused = []
             return
 
+        sessions = list(manager.get_sessions())
+        paused = []
+        for session in sessions:
+            result = await self._pause_session(session)
+            if result is not None:
+                paused.append(result)
+        self._paused = paused
+
     async def resume(self) -> None:
         pass