fix(nfo): add year field to series and create missing NFO files

- Add missing year field when building series list in anime_service
- Add _create_missing_nfo to generate minimal NFO for series without one
- Update perform_nfo_repair_scan to detect and create missing NFOs
- Add semaphore-protected async creation with TMDB rate limiting

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/server/services/anime_service.py

@@ -919,7 +919,8 @@ class AnimeService:
                     name=anime_series.name,
                     site=anime_series.site,
                     folder=anime_series.folder,
-                    episodeDict=episode_dict
+                    episodeDict=episode_dict,
+                    year=anime_series.year
                 )
                 series_list.append(serie)
             

src/server/services/folder_scan_service.py

@@ -28,6 +28,36 @@ _POSTER_DOWNLOAD_SEMAPHORE: asyncio.Semaphore = asyncio.Semaphore(3)
 _NFO_REPAIR_SEMAPHORE: asyncio.Semaphore = asyncio.Semaphore(3)
 
 
+async def _create_missing_nfo(series_dir: Path, series_name: str) -> None:
+    """Create minimal NFO for series without one.
+
+    Creates a fresh :class:`NFOService` per invocation so concurrent
+    tasks cannot interfere with each other.
+
+    A module-level semaphore limits concurrent TMDB operations to 3.
+
+    Args:
+        series_dir: Absolute path to the series folder.
+        series_name: Human-readable series name for log messages.
+    """
+    from src.core.services.nfo_factory import NFOServiceFactory
+
+    async with _NFO_REPAIR_SEMAPHORE:
+        try:
+            factory = NFOServiceFactory()
+            nfo_service = factory.create()
+            await nfo_service.create_minimal_nfo(
+                serie_name=series_name,
+                serie_folder=series_dir.name,
+            )
+        except Exception as exc:  # pylint: disable=broad-except
+            logger.error(
+                "NFO creation failed for %s: %s",
+                series_name,
+                exc,
+            )
+
+
 async def _repair_one_series(series_dir: Path, series_name: str) -> None:
     """Repair a single series NFO in isolation.
 
@@ -63,12 +93,13 @@ async def _repair_one_series(series_dir: Path, series_name: str) -> None:
 
 
 async def perform_nfo_repair_scan(background_loader=None) -> None:
-    """Scan all series folders and repair incomplete tvshow.nfo files.
+    """Scan all series folders, repair incomplete and create missing NFO files.
 
     Called from ``FolderScanService.run_folder_scan()`` during the scheduled
     daily folder scan (not on every startup).  Checks each subfolder of
-    ``settings.anime_directory`` for a ``tvshow.nfo`` and calls
-    ``_repair_one_series`` for every file with absent or empty required tags.
+    ``settings.anime_directory`` for a ``tvshow.nfo``:
+    - Missing NFOs: creates minimal NFO via ``_create_missing_nfo``
+    - Incomplete NFOs: repairs via ``_repair_one_series``
 
     Each repair task creates its own isolated :class:`NFOService` /
     :class:`TMDBClient` so concurrent tasks never share an ``aiohttp``
@@ -97,26 +128,33 @@ async def perform_nfo_repair_scan(background_loader=None) -> None:
 
     queued = 0
     total = 0
+    missing_nfo_count = 0
     for series_dir in sorted(anime_dir.iterdir()):
         if not series_dir.is_dir():
             continue
         nfo_path = series_dir / "tvshow.nfo"
+        series_name = series_dir.name
         if not nfo_path.exists():
+            # Create minimal NFO for series without one
+            missing_nfo_count += 1
+            asyncio.create_task(
+                _create_missing_nfo(series_dir, series_name),
+                name=f"nfo_create:{series_name}",
+            )
             continue
         total += 1
-        series_name = series_dir.name
         if nfo_needs_repair(nfo_path):
             queued += 1
-            # Each task creates its own NFOService so connectors are isolated.
             asyncio.create_task(
                 _repair_one_series(series_dir, series_name),
                 name=f"nfo_repair:{series_name}",
             )
 
     logger.info(
-        "NFO repair scan complete: %d of %d series queued for repair",
+        "NFO repair scan complete: %d of %d series queued for repair, %d missing NFOs queued for creation",
         queued,
         total,
+        missing_nfo_count,
     )