Add NFO scan endpoint and fix scheduler test payload

- Implement /api/nfo/scan endpoint returning scan results
- Fix Robot Framework scheduler test: use Evaluate+json.loads instead of Create Dictionary for nested data
- Remove completed task docs

src/server/api/nfo.py

@@ -16,6 +16,7 @@ from src.server.models.nfo import (
     NfoSettingsResponse,
 )
 from src.server.services.anime_service import AnimeService
+from src.server.services.nfo_scan_service import get_nfo_scan_service
 from src.server.utils.dependencies import get_anime_service, require_auth
 
 logger = logging.getLogger(__name__)
@@ -531,3 +532,36 @@ async def batch_repair_nfo(
             results["errors"].append(f"{key}: {str(exc)}")
 
     return results
+
+
+class NfoScanResponse(BaseModel):
+    """Response for the NFO scan endpoint."""
+
+    total: int
+    created: int
+    updated: int
+    errors_count: int
+    scan_id: str
+    duration_seconds: float
+
+
+@router.post("/scan", response_model=NfoScanResponse)
+async def scan_nfo(
+    _auth: dict = Depends(require_auth),
+    anime_service: AnimeService = Depends(get_anime_service),
+) -> NfoScanResponse:
+    """Run an NFO scan across all series.
+
+    Triggers validation and creation of tvshow.nfo files for all series
+    in the anime library.
+
+    Args:
+        _auth: Authentication dependency
+        anime_service: AnimeService dependency
+
+    Returns:
+        NfoScanResponse with summary of scan results
+    """
+    nfo_scan_service = get_nfo_scan_service()
+    result = await nfo_scan_service.scan_all(anime_service)
+    return NfoScanResponse(**result)