Fix: Scanner availability for series addition

- Change 'scanner' to 'serie_scanner' attribute name
- Update tests to match SeriesApp attribute naming
- Scanner now properly detected and called on add
- All add_series tests passing (9/9)

src/server/api/anime.py

@@ -761,8 +761,8 @@ async def add_series(
         
         # Step E: Trigger targeted scan for missing episodes
         try:
-            if series_app and hasattr(series_app, "scanner"):
-                missing_episodes = series_app.scanner.scan_single_series(
+            if series_app and hasattr(series_app, "serie_scanner"):
+                missing_episodes = series_app.serie_scanner.scan_single_series(
                     key=key,
                     folder=folder
                 )
@@ -776,12 +776,10 @@ async def add_series(
                 if hasattr(series_app, "list") and hasattr(series_app.list, "keyDict"):
                     if key in series_app.list.keyDict:
                         series_app.list.keyDict[key].episodeDict = missing_episodes
-            elif anime_service:
-                # Fallback to anime_service if scanner not directly available
-                # Note: This is a lightweight scan, not a full rescan
-                logger.info(
-                    "Scanner not directly available, "
-                    "skipping targeted scan for %s",
+            else:
+                # Scanner not available - this shouldn't happen in normal operation
+                logger.warning(
+                    "Scanner not available for targeted scan of %s",
                     key
                 )
         except Exception as e: