Switch Frigate model from YOLO-NAS to YOLOv9-t for CoreML compatibility

YOLO-NAS has dynamic output shapes incompatible with CoreML EP, and the
apple-silicon-detector has no yolonas post-processor. YOLOv9-t works with
CoreML and uses the supported yolo-generic model type.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

argocd/manifests/frigate/configmap.yaml

@@ -55,12 +55,12 @@ data:
         endpoint: tcp://host.minikube.internal:5555
 
     model:
-      model_type: yolonas
+      model_type: yolo-generic
       width: 320
       height: 320
       input_tensor: nchw
-      input_pixel_format: bgr
-      path: /media/frigate/models/yolo_nas_s.onnx
+      input_dtype: float
+      path: /media/frigate/models/yolov9t.onnx
       labelmap_path: /labelmap/coco-80.txt
 
     record: