feat(NFO): add TMDB search fallback with alt_titles support

- New _search_with_fallback() method tries multiple strategies:
  1. Primary query with year filter (de-DE locale)
  2. Alternative titles with ja-JP / en-US locales
  3. English search (en-US)
  4. Search without year constraint
  5. Punctuation-normalized query
- create_nfo() accepts new alt_titles param for Japanese/title fallback
- Better match rate for anime with non-English titles

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

src/server/api/health.py

@@ -26,6 +26,8 @@ class HealthStatus(BaseModel):
     service: str = "aniworld-api"
     series_app_initialized: bool = False
     anime_directory_configured: bool = False
+    scheduler_next_run: Optional[str] = None
+    scheduler_last_run: Optional[str] = None
 
 
 class DatabaseHealth(BaseModel):
@@ -177,13 +179,22 @@ async def basic_health_check() -> HealthStatus:
     This endpoint does not depend on anime_directory configuration
     and should always return 200 OK for basic health monitoring.
     Includes service information for identification.
+    Includes scheduler next/last run times for monitoring tools.
 
     Returns:
         HealthStatus: Simple health status with timestamp and service info.
     """
     from src.config.settings import settings
     from src.server.utils.dependencies import _series_app
-    
+
+    # Get scheduler status for health monitoring
+    scheduler_status: dict = {}
+    try:
+        from src.server.services.scheduler_service import get_scheduler_service
+        scheduler_status = get_scheduler_service().get_status()
+    except Exception:
+        pass
+
     logger.debug("Basic health check requested")
     return HealthStatus(
         status="healthy",
@@ -191,6 +202,8 @@ async def basic_health_check() -> HealthStatus:
         service="aniworld-api",
         series_app_initialized=_series_app is not None,
         anime_directory_configured=bool(settings.anime_directory),
+        scheduler_next_run=scheduler_status.get("next_run"),
+        scheduler_last_run=scheduler_status.get("last_run"),
     )