Add year support to anime folder names

- Add year property to Serie entity with name_with_year
- Add year column to AnimeSeries database model
- Add get_year() method to AniworldLoader provider
- Extract year from folder names before fetching from API
- Update SerieScanner to populate year during rescan
- Update add_series endpoint to fetch and store year
- Optimize: check folder name for year before API call

src/server/database/service.py

@@ -64,6 +64,7 @@ class AnimeSeriesService:
         name: str,
         site: str,
         folder: str,
+        year: int | None = None,
     ) -> AnimeSeries:
         """Create a new anime series.
         
@@ -73,6 +74,7 @@ class AnimeSeriesService:
             name: Series name
             site: Provider site URL
             folder: Local filesystem path
+            year: Release year (optional)
         
         Returns:
             Created AnimeSeries instance
@@ -85,11 +87,12 @@ class AnimeSeriesService:
             name=name,
             site=site,
             folder=folder,
+            year=year,
         )
         db.add(series)
         await db.flush()
         await db.refresh(series)
-        logger.info(f"Created anime series: {series.name} (key={series.key})")
+        logger.info(f"Created anime series: {series.name} (key={series.key}, year={year})")
         return series
     
     @staticmethod