Added yolo files

app/models/yolov8n.pt

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f59b3d833e2ff32e194b5bb8e08d211dc7c5bdf144b90d2c8412c47ccfc83b36
+size 6549796

app/scene_graph_service.py

@@ -472,7 +472,7 @@ def detect_objects_yolo(
         Bounding boxes in format [x_c, y_c, w, h, class_id] (normalized)
     """
     # Load YOLOv8 model - will download if not present
-    yolo_model = YOLO(CONFIG["yolo"]["model"])
+    yolo_model = YOLO("app/models/yolov8n.pt")
 
     # Run inference
     results = yolo_model(image_path)