fix: handle lifespan errors gracefully

- Add error tracking in lifespan context manager
- Only cleanup services that were successfully initialized
- Properly handle startup errors without breaking async context
- Fixes RuntimeError: generator didn't stop after athrow()

src/core/services/series_manager_service.py

@@ -182,9 +182,11 @@ class SeriesManagerService:
                                 f"update: {serie_key}"
                             )
             
-            # Create or update NFO file if configured
+            # Create NFO file only if it doesn't exist and auto_create enabled
             if not nfo_exists and self.auto_create_nfo:
-                logger.info(f"Creating NFO for '{serie_name}' ({serie_folder})")
+                logger.info(
+                    f"Creating NFO for '{serie_name}' ({serie_folder})"
+                )
                 await self.nfo_service.create_tvshow_nfo(
                     serie_name=serie_name,
                     serie_folder=serie_folder,
@@ -194,20 +196,10 @@ class SeriesManagerService:
                     download_fanart=self.download_fanart
                 )
                 logger.info(f"Successfully created NFO for '{serie_name}'")
-                
-            elif nfo_exists and self.update_on_scan:
-                logger.info(f"Updating NFO for '{serie_name}' ({serie_folder})")
-                try:
-                    await self.nfo_service.update_tvshow_nfo(
-                        serie_folder=serie_folder,
-                        download_media=True
-                    )
-                    logger.info(f"Successfully updated NFO for '{serie_name}'")
-                except NotImplementedError:
-                    logger.warning(
-                        f"NFO update not yet implemented for '{serie_name}'. "
-                        "Delete tvshow.nfo to recreate."
-                    )
+            elif nfo_exists:
+                logger.debug(
+                    f"NFO exists for '{serie_name}', skipping download"
+                )
                     
         except TMDBAPIError as e:
             logger.error(f"TMDB API error processing '{serie_name}': {e}")